diff --git a/MiniC/Makefile b/MiniC/Makefile
index dcfc04a..64ba2d8 100644
--- a/MiniC/Makefile
+++ b/MiniC/Makefile
@@ -86,7 +86,9 @@ define CLEAN
 import glob
 import os
 for f in glob.glob("**/tests/**/*.c", recursive=True):
-	for s in ("{}-{}.s".format(f[:-2], test) for test in ("naive", "smart", "gcc", "all-in-mem")):
+	files = ["{}-{}.{}".format(f[:-2], test,ext) for test in ("naive", "smart", "gcc", "all-in-mem") for ext in ("s","riscv","pdf")]
+	files += ["{}.{}.{}.{}".format(f[:-2], funct, test,ext for funct in ("main") for test in ("enterssa","exitssa") for ext in ("dot.pdf","dot")
+	for s in files:
 		try:
 			os.remove(s)
 			print("Removed {}".format(s))
diff --git a/MiniC/MiniC.g4 b/MiniC/MiniC.g4
index 6592018..a27b112 100644
--- a/MiniC/MiniC.g4
+++ b/MiniC/MiniC.g4
@@ -52,7 +52,7 @@ print_stat
 expr
     : MINUS expr                           #unaryMinusExpr
     | NOT expr                             #notExpr
-    | expr myop=(MULT|DIV|MOD)  expr       #multiplicativeExpr
+    | expr myop=(MULT|DIV|MOD) expr       #multiplicativeExpr
     | expr myop=(PLUS|MINUS) expr          #additiveExpr
     | expr myop=(GT|LT|GTEQ|LTEQ)  expr    #relationalExpr
     | expr myop=(EQ|NEQ) expr              #equalityExpr
diff --git a/MiniC/README-codegen.md b/MiniC/README-codegen.md
index e6923a0..de3a4bb 100644
--- a/MiniC/README-codegen.md
+++ b/MiniC/README-codegen.md
@@ -3,23 +3,32 @@ LAB4 (simple code generation), MIF08 / CAP 2022-23
 
 # Authors
 
-YOUR NAME HERE
+Samy Avrillon
 
 # Contents
 
-TODO for STUDENTS : Say a bit about the code infrastructure ...
+Same as the first lab, you did the structure, so i have litle interest in commenting it.
 
 # Test design 
 
-TODO: explain your tests
+- folder *operators* checks all operations on operators (additive, multiplicative, relations, unary minus, boolean)
+- *nested{While,For,Ifs}* checks with structures of nested blocks.
+- *forTests* and *whileClauseSyntax* tests for the well-execution of for and while loops.
+- *testTooManyVariables* tries initializing many variables in order to make the naive allocator fail.
 
 # Design choices
 
-TODO: explain your choices. How did you implement boolean not? Did you implement an extension?
+Boolean Not has been implemented using an immediate 1 and the opreator xor, even though such operator exists in riscV (see Known bugs).
+
+I did implement C-like loops with the same system used in the interpreter.
 
 # Known bugs
 
-TODO: Bugs and limitations.
+There is a lot of RiscV instruction that are not implemented in Lib, and that makes bigger and less readable code (for exemple, slt would be better than blt for integer comparison).
+
+By design, we always use a jump statement before a label. Otherwise, the CFG linearization fails. This is intended (the missing jump could be added in *prepare_chunk*).
+
+So, there is one line in *BuildCFG.c* that sould never be executed (that's why the coverage is not 100% complete), when a label is detected as a leader, as the preceding jump will always have been detected as a leader before it.
 
 # Checklists
 
@@ -28,30 +37,30 @@ and *tested* with appropriate test cases.
 
 ## Code generation
 
-- [ ] Number Atom
-- [ ] Boolean Atom
-- [ ] Id Atom
-- [ ] Additive expression
-- [ ] Multiplicative expression
-- [ ] UnaryMinus expression
-- [ ] Or expression
-- [ ] And expression
-- [ ] Equality expression
-- [ ] Relational expression (! many cases -> many tests)
-- [ ] Not expression
+- [X] Number Atom
+- [X] Boolean Atom
+- [X] Id Atom
+- [X] Additive expression
+- [X] Multiplicative expression
+- [X] UnaryMinus expression
+- [X] Or expression
+- [X] And expression
+- [X] Equality expression
+- [X] Relational expression (! many cases -> many tests)
+- [X] Not expression
 
 ## Statements
 
-- [ ] Prog, assignements
-- [ ] While
-- [ ] Cond Block
-- [ ] If
-- [ ] Nested ifs
-- [ ] Nested whiles
+- [X] Prog, assignements
+- [X] While
+- [X] Cond Block
+- [X] If
+- [X] Nested ifs
+- [X] Nested whiles
 
 ## Allocation
 
-- [ ] Naive allocation
-- [ ] All in memory allocation
-- [ ] Massive tests of memory allocation
+- [X] Naive allocation
+- [X] All in memory allocation
+- [X] Massive tests of memory allocation
 
diff --git a/MiniC/TP03/MiniCTypingVisitor.py b/MiniC/TP03/MiniCTypingVisitor.py
index a750cc2..40a44f6 100644
--- a/MiniC/TP03/MiniCTypingVisitor.py
+++ b/MiniC/TP03/MiniCTypingVisitor.py
@@ -110,7 +110,7 @@ class MiniCTypingVisitor(MiniCVisitor):
             else:
                 self._raise(ctx,"boolean operator", fstT)
         else:
-            self._assertSameType(ctx,"boolean operator", fstT,sndT)
+            self._raise(ctx,"boolean operator", fstT,sndT)
 
     def visitAndExpr(self, ctx):
         fstT = self.visit(ctx.expr(0))
@@ -121,7 +121,7 @@ class MiniCTypingVisitor(MiniCVisitor):
             else:
                 self._raise(ctx,"boolean operator", fstT)
         else:
-            self._assertSameType(ctx,"boolean operator", fstT,sndT)
+            self._raise(ctx,"boolean operator", fstT,sndT)
 
     def visitEqualityExpr(self, ctx):
         fstT = self.visit(ctx.expr(0))
@@ -140,7 +140,7 @@ class MiniCTypingVisitor(MiniCVisitor):
             else:
                 self._raise(ctx, "comparaison operator", fstT)
         else:
-            self._assertSameType(ctx,"comparaison operator", fstT,sndT)
+            self._raise(ctx,"comparaison operator", fstT,sndT)
 
     def visitAdditiveExpr(self, ctx):
         assert ctx.myop is not None
@@ -152,9 +152,9 @@ class MiniCTypingVisitor(MiniCVisitor):
             elif (fstT == BaseType.String and ctx.myop.type == MiniCParser.PLUS):
                 return BaseType.String
             else:
-                self._raise(ctx, "additive operands", fstT)
+                self._raise(ctx, "additive operands", fstT,sndT)
         else:
-            self._assertSameType(ctx,"additive operator", fstT,sndT)
+            self._raise(ctx,"additive operator", fstT,sndT)
 
     def visitMultiplicativeExpr(self, ctx):
         fstT = self.visit(ctx.expr(0))
@@ -165,7 +165,7 @@ class MiniCTypingVisitor(MiniCVisitor):
             else:
                 return fstT
         else:
-            self._assertSameType(ctx,"multiplicative operator", fstT,sndT)
+            self._raise(ctx,"multiplicative operands", fstT,sndT)
 
     def visitNotExpr(self, ctx):
         fstT = self.visit(ctx.expr())
diff --git a/MiniC/TP03/tests/students/corrected/bad_type01.c b/MiniC/TP03/tests/provided/examples-types/bad_type01.c
similarity index 57%
rename from MiniC/TP03/tests/students/corrected/bad_type01.c
rename to MiniC/TP03/tests/provided/examples-types/bad_type01.c
index 39f8e7c..1a84239 100644
--- a/MiniC/TP03/tests/students/corrected/bad_type01.c
+++ b/MiniC/TP03/tests/provided/examples-types/bad_type01.c
@@ -11,4 +11,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 8 col 6: type mismatch for multiplicative operator: integer and string
+// In function main: Line 8 col 6: invalid type for multiplicative operands: integer and string
diff --git a/MiniC/TP03/tests/students/corrected/bad_type_bool_bool.c b/MiniC/TP03/tests/provided/examples-types/bad_type_bool_bool.c
similarity index 85%
rename from MiniC/TP03/tests/students/corrected/bad_type_bool_bool.c
rename to MiniC/TP03/tests/provided/examples-types/bad_type_bool_bool.c
index e5f3981..be2d14e 100644
--- a/MiniC/TP03/tests/students/corrected/bad_type_bool_bool.c
+++ b/MiniC/TP03/tests/provided/examples-types/bad_type_bool_bool.c
@@ -6,4 +6,4 @@ int main(){
 }
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 4 col 14: invalid type for additive operands: boolean
+// In function main: Line 4 col 14: invalid type for additive operands: boolean and boolean
diff --git a/MiniC/TP03/tests/students/typeErrors/forInitTyping.c b/MiniC/TP03/tests/students/typeErrors/forInitTyping.c
index 6ce6769..2ce0d31 100644
--- a/MiniC/TP03/tests/students/typeErrors/forInitTyping.c
+++ b/MiniC/TP03/tests/students/typeErrors/forInitTyping.c
@@ -11,4 +11,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 6 col 12: type mismatch for additive operator: integer and boolean
+// In function main: Line 6 col 12: invalid type for additive operator: integer and boolean
diff --git a/MiniC/TP03/tests/students/typeErrors/invalidAdd.c b/MiniC/TP03/tests/students/typeErrors/invalidAdd.c
index 13f78f6..fbf023f 100644
--- a/MiniC/TP03/tests/students/typeErrors/invalidAdd.c
+++ b/MiniC/TP03/tests/students/typeErrors/invalidAdd.c
@@ -11,4 +11,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 8 col 8: invalid type for additive operands: boolean
+// In function main: Line 8 col 8: invalid type for additive operands: boolean and boolean
diff --git a/MiniC/TP03/tests/students/typeErrors/mismatchAdd.c b/MiniC/TP03/tests/students/typeErrors/mismatchAdd.c
index ea7fd8b..a88dc90 100644
--- a/MiniC/TP03/tests/students/typeErrors/mismatchAdd.c
+++ b/MiniC/TP03/tests/students/typeErrors/mismatchAdd.c
@@ -13,4 +13,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 10 col 8: type mismatch for additive operator: integer and float
+// In function main: Line 10 col 8: invalid type for additive operator: integer and float
diff --git a/MiniC/TP03/tests/students/typeErrors/mismatchAnd.c b/MiniC/TP03/tests/students/typeErrors/mismatchAnd.c
index 972e09e..2850c2a 100644
--- a/MiniC/TP03/tests/students/typeErrors/mismatchAnd.c
+++ b/MiniC/TP03/tests/students/typeErrors/mismatchAnd.c
@@ -11,4 +11,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 8 col 8: type mismatch for boolean operator: integer and boolean
+// In function main: Line 8 col 8: invalid type for boolean operator: integer and boolean
diff --git a/MiniC/TP03/tests/students/typeErrors/mismatchComp.c b/MiniC/TP03/tests/students/typeErrors/mismatchComp.c
index a4f962a..724a736 100644
--- a/MiniC/TP03/tests/students/typeErrors/mismatchComp.c
+++ b/MiniC/TP03/tests/students/typeErrors/mismatchComp.c
@@ -19,4 +19,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 16 col 8: type mismatch for comparaison operator: integer and float
+// In function main: Line 16 col 8: invalid type for comparaison operator: integer and float
diff --git a/MiniC/TP03/tests/students/typeErrors/mismatchMult.c b/MiniC/TP03/tests/students/typeErrors/mismatchMult.c
index c04780e..fbab493 100644
--- a/MiniC/TP03/tests/students/typeErrors/mismatchMult.c
+++ b/MiniC/TP03/tests/students/typeErrors/mismatchMult.c
@@ -13,4 +13,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 10 col 8: type mismatch for multiplicative operator: integer and float
+// In function main: Line 10 col 8: invalid type for multiplicative operands: integer and float
diff --git a/MiniC/TP03/tests/students/typeErrors/mismatchOr.c b/MiniC/TP03/tests/students/typeErrors/mismatchOr.c
index 37a3891..2ea9ee0 100644
--- a/MiniC/TP03/tests/students/typeErrors/mismatchOr.c
+++ b/MiniC/TP03/tests/students/typeErrors/mismatchOr.c
@@ -11,4 +11,4 @@ int main(){
 
 // EXITCODE 2
 // EXPECTED
-// In function main: Line 8 col 8: type mismatch for boolean operator: integer and boolean
+// In function main: Line 8 col 8: invalid type for boolean operator: integer and boolean
diff --git a/MiniC/TP04/AllInMemAllocator.py b/MiniC/TP04/AllInMemAllocator.py
index b4ce296..b79fb9d 100644
--- a/MiniC/TP04/AllInMemAllocator.py
+++ b/MiniC/TP04/AllInMemAllocator.py
@@ -14,12 +14,32 @@ class AllInMemAllocator(Allocator):
         before: List[Instruction] = []
         after: List[Instruction] = []
         subst: Dict[Operand, Operand] = {}
+        
+        old_args = old_instr.args()
+        for arg in old_args:
+            # We substitute
+            subst[arg] = S[numreg]
+            numreg += 1
+        for arg in old_instr.used():
+            # We have to read them from memory
+            if(isinstance(arg, Temporary)):
+                before.append(RiscV.ld(subst[arg],self._fdata._pool.get_alloced_loc(arg)))
+        for arg in old_instr.defined():
+            # We have to write them after to memory
+            if(isinstance(arg, Temporary)):
+                after.append(RiscV.sd(subst[arg],self._fdata._pool.get_alloced_loc(arg)))
+            
+        
         # TODO (Exercise 7): compute before,after,args.
         # TODO (Exercise 7): iterate over old_args, check which argument
         # TODO (Exercise 7): is a temporary (e.g. isinstance(..., Temporary)),
         # TODO (Exercise 7): and if so, generate ld/sd accordingly. Replace the
         # TODO (Exercise 7): temporary with S[1], S[2] or S[3] physical registers.
-        new_instr = old_instr.substitute(subst)
+        try:
+            new_instr = old_instr.substitute(subst)
+        except Exception:
+            # We have an instruction that doesn't need substitution
+            return [old_instr]
         return before + [new_instr] + after
 
     def prepare(self):
diff --git a/MiniC/TP04/BuildCFG.py b/MiniC/TP04/BuildCFG.py
index 7e4d384..ce6e903 100644
--- a/MiniC/TP04/BuildCFG.py
+++ b/MiniC/TP04/BuildCFG.py
@@ -20,7 +20,14 @@ def find_leaders(instructions: List[CodeStatement]) -> List[int]:
     last is len(instructions)
     """
     leaders: List[int] = [0]
-    # TODO fill leaders (Lab4b, Exercise 3)
+    for i in range(1,len(instructions)):
+        if(isinstance(instructions[i],AbsoluteJump) or isinstance(instructions[i],ConditionalJump)):
+            # The block ends here and starts just after
+            leaders.append(i+1)
+        elif isinstance(instructions[i],Label) and leaders[-1] != i:
+            # The block starts here
+            leaders.append(i)
+        # Else, ignore
     # The final "ret" is also a form of jump
     leaders.append(len(instructions))
     return leaders
@@ -64,9 +71,19 @@ def prepare_chunk(pre_chunk: List[CodeStatement], fdata: FunctionData) -> tuple[
     jump = None
     inner_statements: List[CodeStatement] = pre_chunk
     # Extract the first instruction from inner_statements if it is a label, or create a fresh one
-    raise NotImplementedError() # TODO (Lab4b, Exercise 3)
+    firstStat = inner_statements.pop(0)
+    if(isinstance(firstStat, Label)):
+        label = firstStat
+    else:
+        inner_statements = [firstStat]+inner_statements
+        label = fdata.fresh_label(fdata._name)
     # Extract the last instruction from inner_statements if it is a jump, or do nothing
-    raise NotImplementedError() # TODO (Lab4b, Exercise 3)
+    if(inner_statements != []):
+        lastStat = inner_statements.pop()
+        if(isinstance(lastStat, ConditionalJump) or isinstance(lastStat, AbsoluteJump)):
+            jump = lastStat
+        else:
+            inner_statements += [lastStat]
     # Check that there is no other label or jump left in inner_statements
     l: List[BlockInstr] = []
     for i in inner_statements:
diff --git a/MiniC/TP04/LinearizeCFG.py b/MiniC/TP04/LinearizeCFG.py
index d3f185e..b38fce1 100644
--- a/MiniC/TP04/LinearizeCFG.py
+++ b/MiniC/TP04/LinearizeCFG.py
@@ -23,10 +23,32 @@ def linearize(cfg) -> List[Statement]:
     """
     Linearize the given control flow graph as a list of instructions.
     """
-    # TODO (Lab 4b, Exercise 5)
     l: List[Statement] = []  # Linearized CFG
     blocks: List[Block] = ordered_blocks_list(cfg)
-    for j, block in enumerate(blocks):
+    
+    labdict = {}
+    # We make the label dictionary
+    for j,block in enumerate(blocks):
+        labdict[block.get_label()] = block
+   
+    while blocks != []:
+        block = blocks[0]
+        if(l != [] and isinstance(l[-1],AbsoluteJump)):
+            ll : AbsoluteJump = l[-1]
+            # We try to find the next jump according to that.
+            try:
+                # If we find the instruction
+                b = labdict[ll.label]
+                if b in blocks:
+                    # We remove the jump instruction and we select the block to use
+                    l.pop()
+                    block = b
+            except KeyError:
+                pass
+                
+        # We remove the block we used
+        blocks.remove(block)
+            
         # 1. Add the label of the block to the linearization
         l.append(block.get_label())
         # 2. Add the body of the block to the linearization
diff --git a/MiniC/TP04/MiniCCodeGen3AVisitor.py b/MiniC/TP04/MiniCCodeGen3AVisitor.py
index ff75196..f26e25e 100644
--- a/MiniC/TP04/MiniCCodeGen3AVisitor.py
+++ b/MiniC/TP04/MiniCCodeGen3AVisitor.py
@@ -75,7 +75,13 @@ class MiniCCodeGen3AVisitor(MiniCVisitor):
 
     def visitBooleanAtom(self, ctx) -> Operands.Temporary:
         # true is 1 false is 0
-        raise NotImplementedError() # TODO (Exercise 5)
+        dtemp = self._current_function.fdata.fresh_tmp()
+        if(ctx.getText() == "true"):
+            val = Operands.Immediate(1)
+        else:
+            val = Operands.Immediate(0)
+        self._current_function.add_instruction(RiscV.li(dtemp,val))
+        return dtemp
 
     def visitIdAtom(self, ctx) -> Operands.Temporary:
         try:
@@ -97,13 +103,52 @@ class MiniCCodeGen3AVisitor(MiniCVisitor):
 
     def visitAdditiveExpr(self, ctx) -> Operands.Temporary:
         assert ctx.myop is not None
-        raise NotImplementedError() # TODO (Exercise 2)
+        if self._debug:
+                print("additive expression, between:",
+                    Trees.toStringTree(ctx.expr(0), None, self._parser),
+                    "and",
+                    Trees.toStringTree(ctx.expr(1), None, self._parser))
+        ltemp = self.visit(ctx.expr(0))
+        rtemp = self.visit(ctx.expr(1))
+        # Getting a fresh temporary for the result of the opreation
+        dtemp = self._current_function.fdata.fresh_tmp()
+        if(ctx.myop.type==MiniCParser.PLUS):
+            self._current_function.add_instruction(RiscV.add(dtemp,ltemp,rtemp))
+        elif(ctx.myop.type==MiniCParser.MINUS):
+            self._current_function.add_instruction(RiscV.sub(dtemp,ltemp,rtemp))
+        else:
+            raise MiniCInternalError("Unknown additive operator from the parser:",ctx.myop)
+        return dtemp
 
     def visitOrExpr(self, ctx) -> Operands.Temporary:
-        raise NotImplementedError() # TODO (Exercise 5)
+        if self._debug:
+                print("or expression, between:",
+                    Trees.toStringTree(ctx.expr(0), None, self._parser),
+                    "and",
+                    Trees.toStringTree(ctx.expr(1), None, self._parser))
+        ltemp = self.visit(ctx.expr(0))
+        rtemp = self.visit(ctx.expr(1))
+        # Getting a fresh temporary for the result of the opreation
+        # We could do only two instructions with slt
+        d0temp = self._current_function.fdata.fresh_tmp()
+        d1temp = self._current_function.fdata.fresh_tmp()
+        self._current_function.add_instruction(RiscV.add(d0temp,ltemp,rtemp))
+        self._current_function.add_instruction(RiscV.mul(d1temp,ltemp,rtemp))
+        self._current_function.add_instruction(RiscV.sub(d0temp,d0temp,d1temp))
+        return d0temp
 
     def visitAndExpr(self, ctx) -> Operands.Temporary:
-        raise NotImplementedError() # TODO (Exercise 5)
+        if self._debug:
+                print("or expression, between:",
+                    Trees.toStringTree(ctx.expr(0), None, self._parser),
+                    "and",
+                    Trees.toStringTree(ctx.expr(1), None, self._parser))
+        ltemp = self.visit(ctx.expr(0))
+        rtemp = self.visit(ctx.expr(1))
+        # Getting a fresh temporary for the result of the opreation
+        dtemp = self._current_function.fdata.fresh_tmp()
+        self._current_function.add_instruction(RiscV.mul(dtemp,ltemp,rtemp))
+        return dtemp
 
     def visitEqualityExpr(self, ctx) -> Operands.Temporary:
         return self.visitRelationalExpr(ctx)
@@ -115,18 +160,63 @@ class MiniCCodeGen3AVisitor(MiniCVisitor):
             print("relational expression:")
             print(Trees.toStringTree(ctx, None, self._parser))
             print("Condition:", c)
-        raise NotImplementedError() # TODO (Exercise 5)
+        ltemp = self.visit(ctx.expr(0))
+        rtemp = self.visit(ctx.expr(1))
+        # Getting a fresh temporary for the result of the opreation
+        dtemp = self._current_function.fdata.fresh_tmp()
+        endlabel = self._current_function.fdata.fresh_label("ifverified")
+        
+        self._current_function.add_instruction(RiscV.li(dtemp,Operands.Immediate(1)))
+        self._current_function.add_comment("If the result of the comparison is true, branch")
+        self._current_function.add_instruction(RiscV.conditional_jump(endlabel,ltemp,Operands.Condition(ctx.myop.type),rtemp))
+        self._current_function.add_instruction(RiscV.li(dtemp,Operands.Immediate(0)))
+        self._current_function.add_instruction(RiscV.jump(endlabel))
+        self._current_function.add_label(endlabel)
+        return dtemp
 
     def visitMultiplicativeExpr(self, ctx) -> Operands.Temporary:
         assert ctx.myop is not None
         div_by_zero_lbl = self._current_function.fdata.get_label_div_by_zero()
-        raise NotImplementedError() # TODO (Exercise 8)
+        
+        ltemp = self.visit(ctx.expr(0))
+        rtemp = self.visit(ctx.expr(1))
+        # Getting a fresh temporary for the result of the opreation
+        dtemp = self._current_function.fdata.fresh_tmp()
+        
+        if(ctx.myop.type==MiniCParser.MULT):
+            self._current_function.add_instruction(RiscV.mul(dtemp,ltemp,rtemp))
+        else:
+            self._current_function.add_instruction(RiscV.conditional_jump(div_by_zero_lbl,rtemp,Operands.Condition('beq'),Operands.ZERO))
+            if(ctx.myop.type==MiniCParser.DIV):
+                self._current_function.add_instruction(RiscV.div(dtemp,ltemp,rtemp))
+            elif(ctx.myop.type==MiniCParser.MOD):
+                self._current_function.add_instruction(RiscV.rem(dtemp,ltemp,rtemp))
+            else:
+                raise MiniCInternalError("Unknown multiplicative operator from the parser:",ctx.myop)
+        return dtemp
 
     def visitNotExpr(self, ctx) -> Operands.Temporary:
-        raise NotImplementedError() # TODO (Exercise 5)
+        if self._debug:
+            print("unitary not expression on expression:",
+                    Trees.toStringTree(ctx.expr(), None, self._parser))
+        vtemp = self.visit(ctx.expr())
+        # Getting a fresh temporary for the result of the opreation
+        dtemp = self._current_function.fdata.fresh_tmp()
+        
+        # (not a) is (1 xor a)
+        self._current_function.add_instruction(RiscV.li(dtemp,Operands.Immediate(1)))
+        self._current_function.add_instruction(RiscV.xor(dtemp,dtemp,vtemp))
+        return dtemp
 
     def visitUnaryMinusExpr(self, ctx) -> Operands.Temporary:
-        raise NotImplementedError("unaryminusexpr") # TODO (Exercise 2)
+        if self._debug:
+            print("unitary minus expression on expression:",
+                    Trees.toStringTree(ctx.expr(), None, self._parser))
+        vtemp = self.visit(ctx.expr())
+        # Getting a fresh temporary for the result of the opreation
+        dtemp = self._current_function.fdata.fresh_tmp()
+        self._current_function.add_instruction(RiscV.sub(dtemp,Operands.ZERO,vtemp))
+        return dtemp
 
     def visitProgRule(self, ctx) -> None:
         self.visitChildren(ctx)
@@ -158,9 +248,25 @@ class MiniCCodeGen3AVisitor(MiniCVisitor):
     def visitIfStat(self, ctx) -> None:
         if self._debug:
             print("if statement")
-        end_if_label = self._current_function.fdata.fresh_label("end_if")
-        raise NotImplementedError() # TODO (Exercise 5)
-        self._current_function.add_label(end_if_label)
+        
+        lendif = self._current_function.fdata.fresh_label("endif")
+        if(ctx.else_block!=None):
+            lelse = self._current_function.fdata.fresh_label("else")
+            dval = self.visit(ctx.expr())
+            self._current_function.add_instruction(RiscV.conditional_jump(lelse, dval, Operands.Condition('beq'), Operands.ZERO))
+            self.visit(ctx.then_block)
+            self._current_function.add_instruction(RiscV.jump(lendif))
+            self._current_function.add_label(lelse)
+            self.visit(ctx.else_block)
+            self._current_function.add_instruction(RiscV.jump(lendif))
+            self._current_function.add_label(lendif)
+        else:
+            dval = self.visit(ctx.expr())
+            self._current_function.add_instruction(RiscV.conditional_jump(lendif, dval, Operands.Condition('beq'), Operands.ZERO))
+            self.visit(ctx.then_block)
+            self._current_function.add_instruction(RiscV.jump(lendif))
+            self._current_function.add_label(lendif)
+            
 
     def visitWhileStat(self, ctx) -> None:
         if self._debug:
@@ -168,7 +274,37 @@ class MiniCCodeGen3AVisitor(MiniCVisitor):
             print(Trees.toStringTree(ctx.expr(), None, self._parser))
             print("and block is:")
             print(Trees.toStringTree(ctx.stat_block(), None, self._parser))
-        raise NotImplementedError() # TODO (Exercise 5)
+        ltest = self._current_function.fdata.fresh_label("testcond")
+        lendwhile = self._current_function.fdata.fresh_label("endwhile")
+        self._current_function.add_instruction(RiscV.jump(ltest))
+        self._current_function.add_label(ltest)
+        dcond = self.visit(ctx.expr())
+        self._current_function.add_instruction(RiscV.conditional_jump(lendwhile, dcond, Operands.Condition('beq'), Operands.ZERO))
+        self.visit(ctx.body)
+        self._current_function.add_instruction(RiscV.jump(ltest))
+        self._current_function.add_label(lendwhile)
+            
+    def visitForStat(self, ctx):
+        init_stat = ctx.init_stat
+        cond = ctx.cond
+        loop_stat = ctx.loop_stat
+        body = ctx.stat_block()
+        
+        ltest = self._current_function.fdata.fresh_label("testcond")
+        lendfor = self._current_function.fdata.fresh_label("endfor")
+        
+        if(init_stat != None):
+            self.visit(init_stat)
+        self._current_function.add_instruction(RiscV.jump(ltest))
+        self._current_function.add_label(ltest)
+        dcond = self.visit(ctx.expr())
+        self._current_function.add_instruction(RiscV.conditional_jump(lendfor, dcond, Operands.Condition('beq'), Operands.ZERO))
+        self.visit(body)
+        if(loop_stat != None):
+            self.visit(loop_stat)
+        self._current_function.add_instruction(RiscV.jump(ltest))
+        self._current_function.add_label(lendfor)
+    
     # visit statements
 
     def visitPrintlnintStat(self, ctx) -> None:
diff --git a/MiniC/TP04/tests/students/forTests.c b/MiniC/TP04/tests/students/forTests.c
new file mode 100644
index 0000000..e05c472
--- /dev/null
+++ b/MiniC/TP04/tests/students/forTests.c
@@ -0,0 +1,32 @@
+#include "printlib.h"
+
+int main(){
+    int x;
+    
+    x = 0;
+    for(;x<4;){
+        println_int(x);
+        x = x+1;
+    }
+    x = 69;
+    for(x=42;false;){
+    }
+    println_int(x);
+    for(x = 100;x>=4;x = x/2){
+        println_int(x+4);
+    }
+    return 0;
+}
+
+// EXITCODE 0
+// EXPECTED
+// 0
+// 1
+// 2
+// 3
+// 42
+// 104
+// 54
+// 29
+// 16
+// 10
diff --git a/MiniC/TP04/tests/students/nestedFor.c b/MiniC/TP04/tests/students/nestedFor.c
new file mode 100644
index 0000000..aa406b4
--- /dev/null
+++ b/MiniC/TP04/tests/students/nestedFor.c
@@ -0,0 +1,31 @@
+#include "printlib.h"
+
+int main(){
+    int x,y,z,t;
+    
+    t = 0;
+    x = 0;
+    for(x=0;x<10;x=x+1){
+        y = 0;
+        for(y=0;y<4;){
+            t = t + y;
+            z = 1;
+            for(z=1;z<13;z=2*z){
+                t = t + 1;
+            }
+            y = y + 1;
+        }
+        for(;y<7;y=y+2){
+            t = t + (y/2);
+        }
+    }
+    println_int(x);
+    println_int(y);
+    println_int(z);
+    return 0;
+}
+
+// EXPECTED
+// 10
+// 8
+// 16
diff --git a/MiniC/TP04/tests/students/nestedIfs.c b/MiniC/TP04/tests/students/nestedIfs.c
new file mode 100644
index 0000000..e72e6b3
--- /dev/null
+++ b/MiniC/TP04/tests/students/nestedIfs.c
@@ -0,0 +1,48 @@
+#include "printlib.h"
+
+int main(){
+    int x,y,z;
+    
+    if (10 == 10) {
+        println_int(44);
+        if (10 == 11) {
+            println_int(75);
+        } else if (10 == 10) {
+            println_int(42);
+            if (9 == 10) {
+                println_int(12);
+            } else if (10 == 9) {
+                println_int(15);
+            } else {
+                println_int(13);
+            }
+            println_int(19);
+        } else {
+            println_int(31);
+        }
+        println_int(25);
+    } else if (10 == 10) {
+        println_int(2);
+    } else {
+        println_int(89);
+        if (10 == 10) {
+            println_int(68);
+        } else if (10 == 10) {
+            println_int(46);
+        } else {
+            println_int(22);
+        }
+        println_int(43);
+    }
+    println_int(14);
+    
+    return 0;
+}
+
+// EXPECTED
+// 44
+// 42
+// 13
+// 19
+// 25
+// 14
diff --git a/MiniC/TP04/tests/students/nestedWhile.c b/MiniC/TP04/tests/students/nestedWhile.c
new file mode 100644
index 0000000..60622c2
--- /dev/null
+++ b/MiniC/TP04/tests/students/nestedWhile.c
@@ -0,0 +1,34 @@
+#include "printlib.h"
+
+int main(){
+    int x,y,z,t;
+    
+    t = 0;
+    x = 0;
+    while(x<10){
+        y = 0;
+        while(y<4){
+            t = t + y;
+            z = 1;
+            while(z<13){
+                t = t + 1;
+                z = 2 * z;
+            }
+            y = y + 1;
+        }
+        while(y<7){
+            t = t + (y/2);
+            y = y + 2;
+        }
+        x = x + 1;
+    }
+    println_int(x);
+    println_int(y);
+    println_int(z);
+    return 0;
+}
+
+// EXPECTED
+// 10
+// 8
+// 16
diff --git a/MiniC/TP04/tests/students/operators/relations/testEq.c b/MiniC/TP04/tests/students/operators/relations/testEq.c
new file mode 100644
index 0000000..202555e
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/relations/testEq.c
@@ -0,0 +1,64 @@
+#include "printlib.h"
+
+int main() {
+    
+    // Testing ==
+    if( 11 == 22 ){
+        println_int(420);
+    }else{
+        println_int(57);
+    }
+    if( -11 == 22 ){
+        println_int(420);
+    }else{
+        println_int(58);
+    }
+    if( 11 == -22 ){
+        println_int(420);
+    }else{
+        println_int(59);
+    }
+    if( -11 == -22 ){
+        println_int(420);
+    }else{
+        println_int(60);
+    }
+    if( 11 == 11 ){
+        println_int(61);
+    }else{
+        println_int(420);
+    }
+    if( -22 == -22 ){
+        println_int(62);
+    }else{
+        println_int(420);
+    }
+    if( true == true ){
+        println_int(63);
+    }else{
+        println_int(420);
+    }
+    if( true == false ){
+        println_int(420);
+    }else{
+        println_int(64);
+    }
+    if( false == false ){
+        println_int(65);
+    }else{
+        println_int(420);
+    }
+    
+    return 0;
+}
+
+// EXPECTED
+// 57
+// 58
+// 59
+// 60
+// 61
+// 62
+// 63
+// 64
+// 65
diff --git a/MiniC/TP04/tests/students/operators/relations/testGeq.c b/MiniC/TP04/tests/students/operators/relations/testGeq.c
new file mode 100644
index 0000000..dd6a630
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/relations/testGeq.c
@@ -0,0 +1,94 @@
+#include "printlib.h"
+
+int main() {
+    
+    // Testing >=
+    if( 11 >= 22 ){
+        println_int(420);
+    }else{
+        println_int(29);
+    }
+    if( -11 >= 22 ){
+        println_int(420);
+    }else{
+        println_int(30);
+    }
+    if( 11 >= -22 ){
+        println_int(31);
+    }else{
+        println_int(420);
+    }
+    if( -11 >= -22 ){
+        println_int(32);
+    }else{
+        println_int(420);
+    }
+    if( 22 >= 11 ){
+        println_int(33);
+    }else{
+        println_int(420);
+    }
+    if( 22 >= -11 ){
+        println_int(34);
+    }else{
+        println_int(420);
+    }
+    if( -22 >= 11 ){
+        println_int(420);
+    }else{
+        println_int(35);
+    }
+    if( -22 >= -11 ){
+        println_int(420);
+    }else{
+        println_int(36);
+    }
+    if( 11 >= 22 ){
+        println_int(420);
+    }else{
+        println_int(37);
+    }
+    if( -11 >= 22 ){
+        println_int(420);
+    }else{
+        println_int(38);
+    }
+    if( 11 >= -22 ){
+        println_int(39);
+    }else{
+        println_int(420);
+    }
+    if( -11 >= -22 ){
+        println_int(40);
+    }else{
+        println_int(420);
+    }
+    if( 22 >= 22 ){
+        println_int(41);
+    }else{
+        println_int(420);
+    }
+    if( -22 >= -22 ){
+        println_int(42);
+    }else{
+        println_int(420);
+    }
+    
+    return 0;
+}
+
+// EXPECTED
+// 29
+// 30
+// 31
+// 32
+// 33
+// 34
+// 35
+// 36
+// 37
+// 38
+// 39
+// 40
+// 41
+// 42
diff --git a/MiniC/TP04/tests/students/operators/relations/testGt.c b/MiniC/TP04/tests/students/operators/relations/testGt.c
new file mode 100644
index 0000000..e6d6c6a
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/relations/testGt.c
@@ -0,0 +1,93 @@
+#include "printlib.h"
+
+int main() {
+    
+    // Testing >
+    if( 11 > 22 ){
+        println_int(420);
+    }else{
+        println_int(43);
+    }
+    if( -11 > 22 ){
+        println_int(420);
+    }else{
+        println_int(44);
+    }
+    if( 11 > -22 ){
+        println_int(45);
+    }else{
+        println_int(420);
+    }
+    if( -11 > -22 ){
+        println_int(46);
+    }else{
+        println_int(420);
+    }
+    if( 22 > 11 ){
+        println_int(47);
+    }else{
+        println_int(420);
+    }
+    if( 22 > -11 ){
+        println_int(48);
+    }else{
+        println_int(420);
+    }
+    if( -22 > 11 ){
+        println_int(420);
+    }else{
+        println_int(49);
+    }
+    if( -22 > -11 ){
+        println_int(420);
+    }else{
+        println_int(50);
+    }
+    if( 11 > 22 ){
+        println_int(420);
+    }else{
+        println_int(51);
+    }
+    if( -11 > 22 ){
+        println_int(420);
+    }else{
+        println_int(52);
+    }
+    if( 11 > -22 ){
+        println_int(53);
+    }else{
+        println_int(420);
+    }
+    if( -11 > -22 ){
+        println_int(54);
+    }else{
+        println_int(420);
+    }
+    if( 22 > 22 ){
+        println_int(420);
+    }else{
+        println_int(55);
+    }
+    if( -22 > -22 ){
+        println_int(420);
+    }else{
+        println_int(56);
+    }
+    return 0;
+}
+
+// EXPECTED
+// 43
+// 44
+// 45
+// 46
+// 47
+// 48
+// 49
+// 50
+// 51
+// 52
+// 53
+// 54
+// 55
+// 56
diff --git a/MiniC/TP04/tests/students/operators/relations/testLeq.c b/MiniC/TP04/tests/students/operators/relations/testLeq.c
new file mode 100644
index 0000000..7d3f861
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/relations/testLeq.c
@@ -0,0 +1,94 @@
+#include "printlib.h"
+
+int main() {
+    
+    // Testing <=
+    if( 11 <= 22 ){
+        println_int(1);
+    }else{
+        println_int(420);
+    }
+    if( -11 <= 22 ){
+        println_int(2);
+    }else{
+        println_int(420);
+    }
+    if( 11 <= -22 ){
+        println_int(420);
+    }else{
+        println_int(3);
+    }
+    if( -11 <= -22 ){
+        println_int(420);
+    }else{
+        println_int(4);
+    }
+    if( 22 <= 11 ){
+        println_int(420);
+    }else{
+        println_int(5);
+    }
+    if( 22 <= -11 ){
+        println_int(420);
+    }else{
+        println_int(6);
+    }
+    if( -22 <= 11 ){
+        println_int(7);
+    }else{
+        println_int(420);
+    }
+    if( -22 <= -11 ){
+        println_int(8);
+    }else{
+        println_int(420);
+    }
+    if( 11 <= 22 ){
+        println_int(9);
+    }else{
+        println_int(420);
+    }
+    if( -11 <= 22 ){
+        println_int(10);
+    }else{
+        println_int(420);
+    }
+    if( 11 <= -22 ){
+        println_int(420);
+    }else{
+        println_int(11);
+    }
+    if( -11 <= -22 ){
+        println_int(420);
+    }else{
+        println_int(12);
+    }
+    if( 22 <= 22 ){
+        println_int(13);
+    }else{
+        println_int(420);
+    }
+    if( -22 <= -22 ){
+        println_int(14);
+    }else{
+        println_int(420);
+    }
+    
+    return 0;
+}
+
+// EXPECTED
+// 1
+// 2
+// 3
+// 4
+// 5
+// 6
+// 7
+// 8
+// 9
+// 10
+// 11
+// 12
+// 13
+// 14
diff --git a/MiniC/TP04/tests/students/operators/relations/testLt.c b/MiniC/TP04/tests/students/operators/relations/testLt.c
new file mode 100644
index 0000000..1360b30
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/relations/testLt.c
@@ -0,0 +1,94 @@
+#include "printlib.h"
+
+int main() {
+    
+    // Testing <
+    if( 11 < 22 ){
+        println_int(15);
+    }else{
+        println_int(420);
+    }
+    if( -11 < 22 ){
+        println_int(16);
+    }else{
+        println_int(420);
+    }
+    if( 11 < -22 ){
+        println_int(420);
+    }else{
+        println_int(17);
+    }
+    if( -11 < -22 ){
+        println_int(420);
+    }else{
+        println_int(18);
+    }
+    if( 22 < 11 ){
+        println_int(420);
+    }else{
+        println_int(19);
+    }
+    if( 22 < -11 ){
+        println_int(420);
+    }else{
+        println_int(20);
+    }
+    if( -22 < 11 ){
+        println_int(21);
+    }else{
+        println_int(420);
+    }
+    if( -22 < -11 ){
+        println_int(22);
+    }else{
+        println_int(420);
+    }
+    if( 11 < 22 ){
+        println_int(23);
+    }else{
+        println_int(420);
+    }
+    if( -11 < 22 ){
+        println_int(24);
+    }else{
+        println_int(420);
+    }
+    if( 11 < -22 ){
+        println_int(420);
+    }else{
+        println_int(25);
+    }
+    if( -11 < -22 ){
+        println_int(420);
+    }else{
+        println_int(26);
+    }
+    if( 22 < 22 ){
+        println_int(420);
+    }else{
+        println_int(27);
+    }
+    if( -22 < -22 ){
+        println_int(420);
+    }else{
+        println_int(28);
+    }
+    
+    return 0;
+}
+
+// EXPECTED
+// 15
+// 16
+// 17
+// 18
+// 19
+// 20
+// 21
+// 22
+// 23
+// 24
+// 25
+// 26
+// 27
+// 28
diff --git a/MiniC/TP04/tests/students/operators/relations/testNeq.c b/MiniC/TP04/tests/students/operators/relations/testNeq.c
new file mode 100644
index 0000000..7904a35
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/relations/testNeq.c
@@ -0,0 +1,64 @@
+#include "printlib.h"
+
+int main() {
+    
+    // Testing !=
+    if( 11 != 22 ){
+        println_int(66);
+    }else{
+        println_int(420);
+    }
+    if( -11 != 22 ){
+        println_int(67);
+    }else{
+        println_int(420);
+    }
+    if( 11 != -22 ){
+        println_int(68);
+    }else{
+        println_int(420);
+    }
+    if( -11 != -22 ){
+        println_int(69);
+    }else{
+        println_int(420);
+    }
+    if( 11 != 11 ){
+        println_int(420);
+    }else{
+        println_int(70);
+    }
+    if( -22 != -22 ){
+        println_int(420);
+    }else{
+        println_int(71);
+    }
+    if( true != true ){
+        println_int(420);
+    }else{
+        println_int(72);
+    }
+    if( true != false ){
+        println_int(73);
+    }else{
+        println_int(420);
+    }
+    if( false != false ){
+        println_int(420);
+    }else{
+        println_int(74);
+    }
+    
+    return 0;
+}
+
+// EXPECTED
+// 66
+// 67
+// 68
+// 69
+// 70
+// 71
+// 72
+// 73
+// 74
diff --git a/MiniC/TP04/tests/students/operators/testAddClause.c b/MiniC/TP04/tests/students/operators/testAddClause.c
new file mode 100644
index 0000000..50bc64a
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testAddClause.c
@@ -0,0 +1,26 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y,z;
+    
+    x = 12;
+    y = -21;
+    z = 14;
+    
+    println_int(x + y);
+    println_int(y + z);
+    println_int(z + x);
+    println_int(z + y);
+    println_int(y + x);
+    println_int(x + z);
+    return 0;
+}
+
+// EXPECTED
+// -9
+// -7
+// 26
+// -7
+// -9
+// 26
diff --git a/MiniC/TP04/tests/students/operators/testAndClause.c b/MiniC/TP04/tests/students/operators/testAndClause.c
new file mode 100644
index 0000000..e6cb58f
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testAndClause.c
@@ -0,0 +1,26 @@
+#include "printlib.h"
+
+int main() {
+    
+    bool x,y;
+    
+    x = true;
+    y = false;
+    
+    println_bool(x);
+    println_bool(y);
+    println_bool(x && x);
+    println_bool(y && x);
+    println_bool(x && y);
+    println_bool(y && y);
+    
+    return 0;
+}
+
+// EXPECTED
+// 1
+// 0
+// 1
+// 0
+// 0
+// 0
diff --git a/MiniC/TP04/tests/students/operators/testDivClause.c b/MiniC/TP04/tests/students/operators/testDivClause.c
new file mode 100644
index 0000000..72d2465
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testDivClause.c
@@ -0,0 +1,24 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y;
+    int u,v;
+    
+    x = 3;
+    y = -4;
+    u = 41;
+    v = -31;
+    
+    println_int(u / x);
+    println_int(v / x);
+    println_int(u / y);
+    println_int(v / y);
+    return 0;
+}
+
+// EXPECTED
+// 13
+// -10
+// -10
+// 7
diff --git a/MiniC/TP04/tests/students/operators/testDivZero.c b/MiniC/TP04/tests/students/operators/testDivZero.c
new file mode 100644
index 0000000..5c03d5d
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testDivZero.c
@@ -0,0 +1,25 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y;
+    int u,v;
+    
+    x = 3;
+    y = 0;
+    u = 41;
+    v = 0;
+    
+    println_int(u / x);
+    println_int(v / x);
+    println_int(u / y);
+    println_int(v / y);
+    return 0;
+}
+
+// EXPECTED
+// 13
+// 0
+// Division by 0
+// SKIP TEST EXPECTED
+// EXECCODE 1
diff --git a/MiniC/TP04/tests/students/operators/testMinusClause.c b/MiniC/TP04/tests/students/operators/testMinusClause.c
new file mode 100644
index 0000000..1c63fe6
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testMinusClause.c
@@ -0,0 +1,26 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y,z;
+    
+    x = 12;
+    y = -21;
+    z = 14;
+    
+    println_int(x - y);
+    println_int(y - z);
+    println_int(z - x);
+    println_int(z - y);
+    println_int(y - x);
+    println_int(x - z);
+    return 0;
+}
+
+// EXPECTED
+// 33
+// -35
+// 2
+// 35
+// -33
+// -2
diff --git a/MiniC/TP04/tests/students/operators/testModClause.c b/MiniC/TP04/tests/students/operators/testModClause.c
new file mode 100644
index 0000000..d4a70bf
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testModClause.c
@@ -0,0 +1,24 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y;
+    int u,v;
+    
+    x = 3;
+    y = -4;
+    u = 41;
+    v = -31;
+    
+    println_int(u % x);
+    println_int(v % x);
+    println_int(u % y);
+    println_int(v % y);
+    return 0;
+}
+
+// EXPECTED
+// 2
+// -1
+// 1
+// -3
diff --git a/MiniC/TP04/tests/students/operators/testModZero.c b/MiniC/TP04/tests/students/operators/testModZero.c
new file mode 100644
index 0000000..3783dc6
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testModZero.c
@@ -0,0 +1,25 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y;
+    int u,v;
+    
+    x = 3;
+    y = 0;
+    u = 41;
+    v = 0;
+    
+    println_int(u % x);
+    println_int(v % x);
+    println_int(u % y);
+    println_int(v % y);
+    return 0;
+}
+
+// EXPECTED
+// 2
+// 0
+// Division by 0
+// SKIP TEST EXPECTED
+// EXECCODE 1
diff --git a/MiniC/TP04/tests/students/operators/testMulClause.c b/MiniC/TP04/tests/students/operators/testMulClause.c
new file mode 100644
index 0000000..6ee151a
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testMulClause.c
@@ -0,0 +1,31 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y,z,t;
+    
+    x = 12;
+    y = -21;
+    z = 14;
+    t = -4;
+    
+    println_int(x * y);
+    println_int(y * z);
+    println_int(z * x);
+    println_int(y * t);
+    println_int(z * y);
+    println_int(y * x);
+    println_int(x * z);
+    println_int(t * y);
+    return 0;
+}
+
+// EXPECTED
+// -252
+// -294
+// 168
+// 84
+// -294
+// -252
+// 168
+// 84
diff --git a/MiniC/TP04/tests/students/operators/testNotClause.c b/MiniC/TP04/tests/students/operators/testNotClause.c
new file mode 100644
index 0000000..fdc4671
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testNotClause.c
@@ -0,0 +1,22 @@
+#include "printlib.h"
+
+int main() {
+    
+    bool x,y;
+    
+    x = true;
+    y = false;
+    
+    println_bool(x);
+    println_bool(y);
+    println_bool(!x);
+    println_bool(!y);
+    
+    return 0;
+}
+
+// EXPECTED
+// 1
+// 0
+// 0
+// 1
diff --git a/MiniC/TP04/tests/students/operators/testOrClause.c b/MiniC/TP04/tests/students/operators/testOrClause.c
new file mode 100644
index 0000000..3f0667a
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testOrClause.c
@@ -0,0 +1,26 @@
+#include "printlib.h"
+
+int main() {
+    
+    bool x,y;
+    
+    x = true;
+    y = false;
+    
+    println_bool(x);
+    println_bool(y);
+    println_bool(x || x);
+    println_bool(y || x);
+    println_bool(x || y);
+    println_bool(y || y);
+    
+    return 0;
+}
+
+// EXPECTED
+// 1
+// 0
+// 1
+// 1
+// 1
+// 0
diff --git a/MiniC/TP04/tests/students/operators/testUMinusClause.c b/MiniC/TP04/tests/students/operators/testUMinusClause.c
new file mode 100644
index 0000000..ace123d
--- /dev/null
+++ b/MiniC/TP04/tests/students/operators/testUMinusClause.c
@@ -0,0 +1,25 @@
+#include "printlib.h"
+
+int main() {
+    
+    int x,y;
+    
+    x = 12;
+    y = -21;
+    
+    println_int(x);
+    println_int(y);
+    println_int(-x);
+    println_int(-y);
+    println_int(x + (-y));
+    println_int((-x) - (-y));
+    return 0;
+}
+
+// EXPECTED
+// 12
+// -21
+// -12
+// 21
+// 33
+// -33
diff --git a/MiniC/TP04/tests/students/testTooManyVariables.c b/MiniC/TP04/tests/students/testTooManyVariables.c
new file mode 100644
index 0000000..408e750
--- /dev/null
+++ b/MiniC/TP04/tests/students/testTooManyVariables.c
@@ -0,0 +1,37 @@
+#include "printlib.h"
+
+int main() {
+    
+    int a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z;
+    
+    a = 5;
+    b = 2;
+    c = a + b;
+    d = a - b;
+    e = c + d;
+    f = d + e;
+    g = c - e;
+    h = f + g;
+    i = h - e;
+    j = d + g;
+    k = g + h;
+    l = c - d;
+    m = i + j;
+    n = j + k;
+    o = k + k;
+    p = j - e;
+    q = c + k;
+    r = d + e;
+    s = c + b;
+    t = l - p;
+    u = d + s;
+    v = m - r;
+    w = c + u;
+    x = k - m;
+    y = g + r;
+    z = l + n;
+    
+    return 0;
+}
+
+// EXPECTED
diff --git a/MiniC/TP04/tests/students/whileClauseSyntax.c b/MiniC/TP04/tests/students/whileClauseSyntax.c
new file mode 100644
index 0000000..e4a5a15
--- /dev/null
+++ b/MiniC/TP04/tests/students/whileClauseSyntax.c
@@ -0,0 +1,22 @@
+#include "printlib.h"
+
+int main(){
+    int x,y,z;
+    
+    x = 42;
+    y = 0;
+    while(y<x){
+        y = y+1;
+    }
+    println_int(y);
+    y = 0;
+    while(y<x)
+        y = y+5;
+    println_int(y);
+    return 0;
+}
+
+// EXPECTED
+// 42
+// 45
+ 
diff --git a/MiniC/TP05/EnterSSA.py b/MiniC/TP05/EnterSSA.py
index b79937d..24c9a59 100644
--- a/MiniC/TP05/EnterSSA.py
+++ b/MiniC/TP05/EnterSSA.py
@@ -6,7 +6,7 @@ Functions to convert a CFG into SSA Form.
 from typing import List, Dict, Set
 from Lib.CFG import Block, CFG
 from Lib.Operands import Renamer
-from Lib.Statement import Instruction
+from Lib.Statement import Instruction,Label,Operand
 from Lib.PhiNode import PhiNode
 from Lib.Dominators import computeDom, computeDT, computeDF
 
@@ -25,8 +25,13 @@ def insertPhis(cfg: CFG, DF: Dict[Block, Set[Block]]) -> None:
             d = queue.pop(0)
             for b in DF[d]:
                 if b not in has_phi:
-                    # TODO add a phi node in block `b` (Lab 5a, Exercise 4)
-                    raise NotImplementedError("insertPhis")
+                    params : Dict[Label,Operand] = {}
+                    for bi in (set(b.get_in())):
+                        params[bi.get_label()] = var
+                    phi = PhiNode(var,params)
+                    b._phis.append(phi)
+                    queue.append(b)
+                    has_phi.add(b)
 
 
 def rename_block(cfg: CFG, DT: Dict[Block, Set[Block]], renamer: Renamer, b: Block) -> None:
@@ -43,18 +48,19 @@ def rename_block(cfg: CFG, DT: Dict[Block, Set[Block]], renamer: Renamer, b: Blo
         for i in succ._phis:
             assert (isinstance(i, PhiNode))
             i.rename_from(renamer, b.get_label())
-    # TODO recursive call(s) of rename_block (Lab 5a, Exercise 5)
-
+    for dtsucc in DT[b]:
+        rename_block(cfg,DT,renamer, dtsucc)
 
 def rename_variables(cfg: CFG, DT: Dict[Block, Set[Block]]) -> None:
     """
     Rename variables in the CFG, to transform `temp_x = φ(temp_x, ..., temp_x)`
-    into `temp_x = φ(temp_0, ... temp_n)`.
+    into `temp_x = φ(temp_0, ..., temp_n)`.
 
     This is an helper function called during SSA entry.
     """
     renamer = Renamer(cfg.fdata._pool)
-    # TODO initial call(s) to rename_block (Lab 5a, Exercise 5)
+    for etr in cfg.get_entries():
+        rename_block(cfg,DT,renamer,etr)
 
 
 def enter_ssa(cfg: CFG, dom_graphs=False, basename="prog") -> None:
@@ -66,5 +72,9 @@ def enter_ssa(cfg: CFG, dom_graphs=False, basename="prog") -> None:
     `dom_graphs` indicates if we have to print the domination graphs.
     `basename` is used for the names of the produced graphs.
     """
-    # TODO implement this function (Lab 5a, Exercise 2)
-    raise NotImplementedError("enter_ssa")
+    # Compute the DF
+    dom = computeDom(cfg)
+    dt = computeDT(cfg,dom,dom_graphs,basename)
+    df = computeDF(cfg,dom,dt,dom_graphs, basename)
+    insertPhis(cfg,df)
+    rename_variables(cfg,dt)
diff --git a/MiniC/TP05/ExitSSA.py b/MiniC/TP05/ExitSSA.py
index 5b385d5..c319a13 100644
--- a/MiniC/TP05/ExitSSA.py
+++ b/MiniC/TP05/ExitSSA.py
@@ -4,6 +4,7 @@ Functions to convert a CFG out of SSA Form.
 """
 
 from typing import cast, List, Set, Tuple
+from Lib.Errors import MiniCInternalError
 from Lib import RiscV
 from Lib.Graphes import DiGraph
 from Lib.CFG import Block, BlockInstr, CFG
@@ -24,8 +25,10 @@ def generate_moves_from_phis(phis: List[PhiNode], parent: Block) -> List[BlockIn
     This is an helper function called during SSA exit.
     """
     moves: List[BlockInstr] = []
-    # TODO compute 'moves', a list of 'mv' instructions to insert under parent
-    # (Lab 5a, Exercise 6)
+    plabel = parent.get_label()
+    for phi in phis:
+        if(plabel in phi.used()):
+            moves.append(RiscV.mv(phi.var,phi.used()[plabel]))
     return moves
 
 
@@ -38,11 +41,34 @@ def exit_ssa(cfg: CFG, is_smart: bool) -> None:
     for b in cfg.get_blocks():
         phis = cast(List[PhiNode], b._phis)  # Use cast for Pyright
         b._phis = []  # Remove all phi nodes in the block
+        blabel = b.get_label()
         parents: List[Block] = b.get_in().copy()  # Copy as we modify it by adding blocks
-        for parent in parents:
-            moves = generate_moves_from_phis(phis, parent)
-            # TODO Add the block containing 'moves' to 'cfg'
-            # and update edges and jumps accordingly (Lab 5a, Exercise 6)
-            raise NotImplementedError("exit_ssa")
-
+        for p in parents:
+            moves = generate_moves_from_phis(phis, p)
+            if(len(moves)==0):
+                continue
+            # Creating the block
+            ilabel = cfg.fdata.fresh_label(p.get_label().name+"_to_"+b.get_label().name)
+            i = Block(ilabel,moves,AbsoluteJump(blabel))
+            # Add the block
+            cfg.add_block(i)
+            # Changing the jumps
+            ot = p.get_terminator()
+            if(isinstance(ot,BranchingTerminator)):
+                if(ot.label_then == blabel):
+                    ot.label_then = ilabel
+                if(ot.label_else == blabel):
+                    ot.label_else = ilabel
+            elif(isinstance(ot,AbsoluteJump)):
+                assert(ot.label == blabel)
+                ot = AbsoluteJump(ilabel)
+            elif(isinstance(ot,Return)):
+                raise MiniCInternalError("Malformed CFG, cannot have a return in a parent block")
+            else:
+                raise MiniCInternalError("I don't know of this terminator type:",type(ot))
+            p.set_terminator(ot) # This instruction might be useless
+            # Moving from p -> b to p -> i -> b
+            cfg.remove_edge(p,b)
+            cfg.add_edge(p,i)
+            cfg.add_edge(i,b)
 
diff --git a/TP01/riscv/ex1.riscv b/TP01/riscv/ex1.riscv
new file mode 100755
index 0000000..5959395
Binary files /dev/null and b/TP01/riscv/ex1.riscv differ
diff --git a/TP01/riscv/libprint.o b/TP01/riscv/libprint.o
new file mode 100644
index 0000000..94ea068
Binary files /dev/null and b/TP01/riscv/libprint.o differ
diff --git a/TP01/riscv/test_print b/TP01/riscv/test_print
new file mode 100755
index 0000000..5d8a5c5
Binary files /dev/null and b/TP01/riscv/test_print differ
diff --git a/TP01/riscv/test_print.o b/TP01/riscv/test_print.o
new file mode 100644
index 0000000..e6f3eb6
Binary files /dev/null and b/TP01/riscv/test_print.o differ
diff --git a/TP01/riscv/test_print.riscv b/TP01/riscv/test_print.riscv
new file mode 100755
index 0000000..8136e2b
Binary files /dev/null and b/TP01/riscv/test_print.riscv differ
diff --git a/TP02/ariteval/AritLexer.py b/TP02/ariteval/AritLexer.py
new file mode 100644
index 0000000..71ecfde
--- /dev/null
+++ b/TP02/ariteval/AritLexer.py
@@ -0,0 +1,77 @@
+# Generated from Arit.g4 by ANTLR 4.9.2
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+    from typing import TextIO
+else:
+    from typing.io import TextIO
+
+
+# header - mettre les d??clarations globales
+import sys
+idTab = {};
+
+class UnknownIdentifier(Exception):
+    pass
+
+class DivByZero(Exception):
+    pass
+
+
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\2\6")
+        buf.write("\'\b\1\4\2\t\2\4\3\t\3\4\4\t\4\4\5\t\5\3\2\3\2\3\2\3\2")
+        buf.write("\7\2\20\n\2\f\2\16\2\23\13\2\3\2\3\2\3\3\6\3\30\n\3\r")
+        buf.write("\3\16\3\31\3\4\6\4\35\n\4\r\4\16\4\36\3\5\6\5\"\n\5\r")
+        buf.write("\5\16\5#\3\5\3\5\2\2\6\3\3\5\4\7\5\t\6\3\2\5\4\2\f\f\17")
+        buf.write("\17\4\2C\\c|\5\2\13\f\17\17\"\"\2*\2\3\3\2\2\2\2\5\3\2")
+        buf.write("\2\2\2\7\3\2\2\2\2\t\3\2\2\2\3\13\3\2\2\2\5\27\3\2\2\2")
+        buf.write("\7\34\3\2\2\2\t!\3\2\2\2\13\f\7\61\2\2\f\r\7\61\2\2\r")
+        buf.write("\21\3\2\2\2\16\20\n\2\2\2\17\16\3\2\2\2\20\23\3\2\2\2")
+        buf.write("\21\17\3\2\2\2\21\22\3\2\2\2\22\24\3\2\2\2\23\21\3\2\2")
+        buf.write("\2\24\25\b\2\2\2\25\4\3\2\2\2\26\30\t\3\2\2\27\26\3\2")
+        buf.write("\2\2\30\31\3\2\2\2\31\27\3\2\2\2\31\32\3\2\2\2\32\6\3")
+        buf.write("\2\2\2\33\35\4\62;\2\34\33\3\2\2\2\35\36\3\2\2\2\36\34")
+        buf.write("\3\2\2\2\36\37\3\2\2\2\37\b\3\2\2\2 \"\t\4\2\2! \3\2\2")
+        buf.write("\2\"#\3\2\2\2#!\3\2\2\2#$\3\2\2\2$%\3\2\2\2%&\b\5\2\2")
+        buf.write("&\n\3\2\2\2\7\2\21\31\36#\3\b\2\2")
+        return buf.getvalue()
+
+
+class AritLexer(Lexer):
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    COMMENT = 1
+    ID = 2
+    INT = 3
+    WS = 4
+
+    channelNames = [ u"DEFAULT_TOKEN_CHANNEL", u"HIDDEN" ]
+
+    modeNames = [ "DEFAULT_MODE" ]
+
+    literalNames = [ "<INVALID>",
+ ]
+
+    symbolicNames = [ "<INVALID>",
+            "COMMENT", "ID", "INT", "WS" ]
+
+    ruleNames = [ "COMMENT", "ID", "INT", "WS" ]
+
+    grammarFileName = "Arit.g4"
+
+    def __init__(self, input=None, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = LexerATNSimulator(self, self.atn, self.decisionsToDFA, PredictionContextCache())
+        self._actions = None
+        self._predicates = None
+
+
diff --git a/TP02/ariteval/AritListener.py b/TP02/ariteval/AritListener.py
new file mode 100644
index 0000000..d1ddd11
--- /dev/null
+++ b/TP02/ariteval/AritListener.py
@@ -0,0 +1,33 @@
+# Generated from Arit.g4 by ANTLR 4.9.2
+from antlr4 import *
+if __name__ is not None and "." in __name__:
+    from .AritParser import AritParser
+else:
+    from AritParser import AritParser
+
+# header - mettre les d??clarations globales
+import sys
+idTab = {};
+
+class UnknownIdentifier(Exception):
+    pass
+
+class DivByZero(Exception):
+    pass
+
+
+
+# This class defines a complete listener for a parse tree produced by AritParser.
+class AritListener(ParseTreeListener):
+
+    # Enter a parse tree produced by AritParser#prog.
+    def enterProg(self, ctx:AritParser.ProgContext):
+        pass
+
+    # Exit a parse tree produced by AritParser#prog.
+    def exitProg(self, ctx:AritParser.ProgContext):
+        pass
+
+
+
+del AritParser
\ No newline at end of file
diff --git a/TP02/ariteval/AritParser.py b/TP02/ariteval/AritParser.py
new file mode 100644
index 0000000..369e7b4
--- /dev/null
+++ b/TP02/ariteval/AritParser.py
@@ -0,0 +1,110 @@
+# Generated from Arit.g4 by ANTLR 4.9.2
+# encoding: utf-8
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+	from typing import TextIO
+else:
+	from typing.io import TextIO
+
+
+# header - mettre les d??clarations globales
+import sys
+idTab = {};
+
+class UnknownIdentifier(Exception):
+    pass
+
+class DivByZero(Exception):
+    pass
+
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\3\6")
+        buf.write("\b\4\2\t\2\3\2\3\2\3\2\3\2\2\2\3\2\2\2\2\6\2\4\3\2\2\2")
+        buf.write("\4\5\7\4\2\2\5\6\b\2\1\2\6\3\3\2\2\2\2")
+        return buf.getvalue()
+
+
+class AritParser ( Parser ):
+
+    grammarFileName = "Arit.g4"
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    sharedContextCache = PredictionContextCache()
+
+    literalNames = [  ]
+
+    symbolicNames = [ "<INVALID>", "COMMENT", "ID", "INT", "WS" ]
+
+    RULE_prog = 0
+
+    ruleNames =  [ "prog" ]
+
+    EOF = Token.EOF
+    COMMENT=1
+    ID=2
+    INT=3
+    WS=4
+
+    def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
+        self._predicates = None
+
+
+
+
+    class ProgContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+            self._ID = None # Token
+
+        def ID(self):
+            return self.getToken(AritParser.ID, 0)
+
+        def getRuleIndex(self):
+            return AritParser.RULE_prog
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterProg" ):
+                listener.enterProg(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitProg" ):
+                listener.exitProg(self)
+
+
+
+
+    def prog(self):
+
+        localctx = AritParser.ProgContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 0, self.RULE_prog)
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 2
+            localctx._ID = self.match(AritParser.ID)
+            print("prog = "+str((None if localctx._ID is None else localctx._ID.text)));
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+
+
+
diff --git a/TP02/ariteval/tree.dot b/TP02/ariteval/tree.dot
new file mode 100644
index 0000000..7e64e30
--- /dev/null
+++ b/TP02/ariteval/tree.dot
@@ -0,0 +1,5 @@
+digraph {
+	139921865517408 [label=prog]
+	139921863565696 [label=Hello]
+	139921865517408 -> 139921863565696
+}
diff --git a/TP02/ariteval/tree.dot.pdf b/TP02/ariteval/tree.dot.pdf
new file mode 100644
index 0000000..f52b906
Binary files /dev/null and b/TP02/ariteval/tree.dot.pdf differ
diff --git a/TP02/demo_files/ex1/Example1.py b/TP02/demo_files/ex1/Example1.py
new file mode 100644
index 0000000..bdc667e
--- /dev/null
+++ b/TP02/demo_files/ex1/Example1.py
@@ -0,0 +1,69 @@
+# Generated from Example1.g4 by ANTLR 4.9.2
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+    from typing import TextIO
+else:
+    from typing.io import TextIO
+
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\2\t")
+        buf.write("*\b\1\4\2\t\2\4\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\4\7\t\7")
+        buf.write("\4\b\t\b\3\2\3\2\3\3\3\3\3\4\3\4\3\5\3\5\3\5\7\5\33\n")
+        buf.write("\5\f\5\16\5\36\13\5\3\6\6\6!\n\6\r\6\16\6\"\3\6\3\6\3")
+        buf.write("\7\3\7\3\b\3\b\2\2\t\3\3\5\4\7\5\t\6\13\7\r\b\17\t\3\2")
+        buf.write("\6\5\2,-//\61\61\3\2\62;\4\2C\\c|\5\2\13\f\17\17\"\"\2")
+        buf.write(",\2\3\3\2\2\2\2\5\3\2\2\2\2\7\3\2\2\2\2\t\3\2\2\2\2\13")
+        buf.write("\3\2\2\2\2\r\3\2\2\2\2\17\3\2\2\2\3\21\3\2\2\2\5\23\3")
+        buf.write("\2\2\2\7\25\3\2\2\2\t\27\3\2\2\2\13 \3\2\2\2\r&\3\2\2")
+        buf.write("\2\17(\3\2\2\2\21\22\t\2\2\2\22\4\3\2\2\2\23\24\t\3\2")
+        buf.write("\2\24\6\3\2\2\2\25\26\t\4\2\2\26\b\3\2\2\2\27\34\5\7\4")
+        buf.write("\2\30\33\5\7\4\2\31\33\5\5\3\2\32\30\3\2\2\2\32\31\3\2")
+        buf.write("\2\2\33\36\3\2\2\2\34\32\3\2\2\2\34\35\3\2\2\2\35\n\3")
+        buf.write("\2\2\2\36\34\3\2\2\2\37!\t\5\2\2 \37\3\2\2\2!\"\3\2\2")
+        buf.write("\2\" \3\2\2\2\"#\3\2\2\2#$\3\2\2\2$%\b\6\2\2%\f\3\2\2")
+        buf.write("\2&\'\7*\2\2\'\16\3\2\2\2()\7+\2\2)\20\3\2\2\2\6\2\32")
+        buf.write("\34\"\3\b\2\2")
+        return buf.getvalue()
+
+
+class Example1(Lexer):
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    OP = 1
+    DIGIT = 2
+    LETTER = 3
+    ID = 4
+    WS = 5
+    OPENP = 6
+    ENDP = 7
+
+    channelNames = [ u"DEFAULT_TOKEN_CHANNEL", u"HIDDEN" ]
+
+    modeNames = [ "DEFAULT_MODE" ]
+
+    literalNames = [ "<INVALID>",
+            "'('", "')'" ]
+
+    symbolicNames = [ "<INVALID>",
+            "OP", "DIGIT", "LETTER", "ID", "WS", "OPENP", "ENDP" ]
+
+    ruleNames = [ "OP", "DIGIT", "LETTER", "ID", "WS", "OPENP", "ENDP" ]
+
+    grammarFileName = "Example1.g4"
+
+    def __init__(self, input=None, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = LexerATNSimulator(self, self.atn, self.decisionsToDFA, PredictionContextCache())
+        self._actions = None
+        self._predicates = None
+
+
diff --git a/TP02/demo_files/ex2/Example2Lexer.py b/TP02/demo_files/ex2/Example2Lexer.py
new file mode 100644
index 0000000..f748f70
--- /dev/null
+++ b/TP02/demo_files/ex2/Example2Lexer.py
@@ -0,0 +1,64 @@
+# Generated from Example2.g4 by ANTLR 4.9.2
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+    from typing import TextIO
+else:
+    from typing.io import TextIO
+
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\2\7")
+        buf.write("\"\b\1\4\2\t\2\4\3\t\3\4\4\t\4\4\5\t\5\4\6\t\6\3\2\3\2")
+        buf.write("\3\3\3\3\3\4\6\4\23\n\4\r\4\16\4\24\3\5\6\5\30\n\5\r\5")
+        buf.write("\16\5\31\3\6\6\6\35\n\6\r\6\16\6\36\3\6\3\6\2\2\7\3\3")
+        buf.write("\5\4\7\5\t\6\13\7\3\2\5\5\2,-//\61\61\4\2C\\c|\5\2\13")
+        buf.write("\f\17\17\"\"\2$\2\3\3\2\2\2\2\5\3\2\2\2\2\7\3\2\2\2\2")
+        buf.write("\t\3\2\2\2\2\13\3\2\2\2\3\r\3\2\2\2\5\17\3\2\2\2\7\22")
+        buf.write("\3\2\2\2\t\27\3\2\2\2\13\34\3\2\2\2\r\16\7=\2\2\16\4\3")
+        buf.write("\2\2\2\17\20\t\2\2\2\20\6\3\2\2\2\21\23\4\62;\2\22\21")
+        buf.write("\3\2\2\2\23\24\3\2\2\2\24\22\3\2\2\2\24\25\3\2\2\2\25")
+        buf.write("\b\3\2\2\2\26\30\t\3\2\2\27\26\3\2\2\2\30\31\3\2\2\2\31")
+        buf.write("\27\3\2\2\2\31\32\3\2\2\2\32\n\3\2\2\2\33\35\t\4\2\2\34")
+        buf.write("\33\3\2\2\2\35\36\3\2\2\2\36\34\3\2\2\2\36\37\3\2\2\2")
+        buf.write("\37 \3\2\2\2 !\b\6\2\2!\f\3\2\2\2\6\2\24\31\36\3\b\2\2")
+        return buf.getvalue()
+
+
+class Example2Lexer(Lexer):
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    T__0 = 1
+    OP = 2
+    INT = 3
+    ID = 4
+    WS = 5
+
+    channelNames = [ u"DEFAULT_TOKEN_CHANNEL", u"HIDDEN" ]
+
+    modeNames = [ "DEFAULT_MODE" ]
+
+    literalNames = [ "<INVALID>",
+            "';'" ]
+
+    symbolicNames = [ "<INVALID>",
+            "OP", "INT", "ID", "WS" ]
+
+    ruleNames = [ "T__0", "OP", "INT", "ID", "WS" ]
+
+    grammarFileName = "Example2.g4"
+
+    def __init__(self, input=None, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = LexerATNSimulator(self, self.atn, self.decisionsToDFA, PredictionContextCache())
+        self._actions = None
+        self._predicates = None
+
+
diff --git a/TP02/demo_files/ex2/Example2Listener.py b/TP02/demo_files/ex2/Example2Listener.py
new file mode 100644
index 0000000..602afd1
--- /dev/null
+++ b/TP02/demo_files/ex2/Example2Listener.py
@@ -0,0 +1,30 @@
+# Generated from Example2.g4 by ANTLR 4.9.2
+from antlr4 import *
+if __name__ is not None and "." in __name__:
+    from .Example2Parser import Example2Parser
+else:
+    from Example2Parser import Example2Parser
+
+# This class defines a complete listener for a parse tree produced by Example2Parser.
+class Example2Listener(ParseTreeListener):
+
+    # Enter a parse tree produced by Example2Parser#full_expr.
+    def enterFull_expr(self, ctx:Example2Parser.Full_exprContext):
+        pass
+
+    # Exit a parse tree produced by Example2Parser#full_expr.
+    def exitFull_expr(self, ctx:Example2Parser.Full_exprContext):
+        pass
+
+
+    # Enter a parse tree produced by Example2Parser#expr.
+    def enterExpr(self, ctx:Example2Parser.ExprContext):
+        pass
+
+    # Exit a parse tree produced by Example2Parser#expr.
+    def exitExpr(self, ctx:Example2Parser.ExprContext):
+        pass
+
+
+
+del Example2Parser
\ No newline at end of file
diff --git a/TP02/demo_files/ex2/Example2Parser.py b/TP02/demo_files/ex2/Example2Parser.py
new file mode 100644
index 0000000..2e8beb2
--- /dev/null
+++ b/TP02/demo_files/ex2/Example2Parser.py
@@ -0,0 +1,221 @@
+# Generated from Example2.g4 by ANTLR 4.9.2
+# encoding: utf-8
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+	from typing import TextIO
+else:
+	from typing.io import TextIO
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\3\7")
+        buf.write("\31\4\2\t\2\4\3\t\3\3\2\3\2\3\2\3\2\3\3\3\3\3\3\3\3\5")
+        buf.write("\3\17\n\3\3\3\3\3\3\3\7\3\24\n\3\f\3\16\3\27\13\3\3\3")
+        buf.write("\2\3\4\4\2\4\2\2\2\30\2\6\3\2\2\2\4\16\3\2\2\2\6\7\5\4")
+        buf.write("\3\2\7\b\7\3\2\2\b\t\7\2\2\3\t\3\3\2\2\2\n\13\b\3\1\2")
+        buf.write("\13\f\7\6\2\2\f\17\b\3\1\2\r\17\7\5\2\2\16\n\3\2\2\2\16")
+        buf.write("\r\3\2\2\2\17\25\3\2\2\2\20\21\f\5\2\2\21\22\7\4\2\2\22")
+        buf.write("\24\5\4\3\6\23\20\3\2\2\2\24\27\3\2\2\2\25\23\3\2\2\2")
+        buf.write("\25\26\3\2\2\2\26\5\3\2\2\2\27\25\3\2\2\2\4\16\25")
+        return buf.getvalue()
+
+
+class Example2Parser ( Parser ):
+
+    grammarFileName = "Example2.g4"
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    sharedContextCache = PredictionContextCache()
+
+    literalNames = [ "<INVALID>", "';'" ]
+
+    symbolicNames = [ "<INVALID>", "<INVALID>", "OP", "INT", "ID", "WS" ]
+
+    RULE_full_expr = 0
+    RULE_expr = 1
+
+    ruleNames =  [ "full_expr", "expr" ]
+
+    EOF = Token.EOF
+    T__0=1
+    OP=2
+    INT=3
+    ID=4
+    WS=5
+
+    def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
+        self._predicates = None
+
+
+
+
+    class Full_exprContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+        def expr(self):
+            return self.getTypedRuleContext(Example2Parser.ExprContext,0)
+
+
+        def EOF(self):
+            return self.getToken(Example2Parser.EOF, 0)
+
+        def getRuleIndex(self):
+            return Example2Parser.RULE_full_expr
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterFull_expr" ):
+                listener.enterFull_expr(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitFull_expr" ):
+                listener.exitFull_expr(self)
+
+
+
+
+    def full_expr(self):
+
+        localctx = Example2Parser.Full_exprContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 0, self.RULE_full_expr)
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 4
+            self.expr(0)
+            self.state = 5
+            self.match(Example2Parser.T__0)
+            self.state = 6
+            self.match(Example2Parser.EOF)
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class ExprContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+            self._ID = None # Token
+
+        def ID(self):
+            return self.getToken(Example2Parser.ID, 0)
+
+        def INT(self):
+            return self.getToken(Example2Parser.INT, 0)
+
+        def expr(self, i:int=None):
+            if i is None:
+                return self.getTypedRuleContexts(Example2Parser.ExprContext)
+            else:
+                return self.getTypedRuleContext(Example2Parser.ExprContext,i)
+
+
+        def OP(self):
+            return self.getToken(Example2Parser.OP, 0)
+
+        def getRuleIndex(self):
+            return Example2Parser.RULE_expr
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterExpr" ):
+                listener.enterExpr(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitExpr" ):
+                listener.exitExpr(self)
+
+
+
+    def expr(self, _p:int=0):
+        _parentctx = self._ctx
+        _parentState = self.state
+        localctx = Example2Parser.ExprContext(self, self._ctx, _parentState)
+        _prevctx = localctx
+        _startState = 2
+        self.enterRecursionRule(localctx, 2, self.RULE_expr, _p)
+        try:
+            self.enterOuterAlt(localctx, 1)
+            self.state = 12
+            self._errHandler.sync(self)
+            token = self._input.LA(1)
+            if token in [Example2Parser.ID]:
+                self.state = 9
+                localctx._ID = self.match(Example2Parser.ID)
+                print('oh an id : '+(None if localctx._ID is None else localctx._ID.text))
+                pass
+            elif token in [Example2Parser.INT]:
+                self.state = 11
+                self.match(Example2Parser.INT)
+                pass
+            else:
+                raise NoViableAltException(self)
+
+            self._ctx.stop = self._input.LT(-1)
+            self.state = 19
+            self._errHandler.sync(self)
+            _alt = self._interp.adaptivePredict(self._input,1,self._ctx)
+            while _alt!=2 and _alt!=ATN.INVALID_ALT_NUMBER:
+                if _alt==1:
+                    if self._parseListeners is not None:
+                        self.triggerExitRuleEvent()
+                    _prevctx = localctx
+                    localctx = Example2Parser.ExprContext(self, _parentctx, _parentState)
+                    self.pushNewRecursionContext(localctx, _startState, self.RULE_expr)
+                    self.state = 14
+                    if not self.precpred(self._ctx, 3):
+                        from antlr4.error.Errors import FailedPredicateException
+                        raise FailedPredicateException(self, "self.precpred(self._ctx, 3)")
+                    self.state = 15
+                    self.match(Example2Parser.OP)
+                    self.state = 16
+                    self.expr(4) 
+                self.state = 21
+                self._errHandler.sync(self)
+                _alt = self._interp.adaptivePredict(self._input,1,self._ctx)
+
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.unrollRecursionContexts(_parentctx)
+        return localctx
+
+
+
+    def sempred(self, localctx:RuleContext, ruleIndex:int, predIndex:int):
+        if self._predicates == None:
+            self._predicates = dict()
+        self._predicates[1] = self.expr_sempred
+        pred = self._predicates.get(ruleIndex, None)
+        if pred is None:
+            raise Exception("No predicate with index:" + str(ruleIndex))
+        else:
+            return pred(localctx, predIndex)
+
+    def expr_sempred(self, localctx:ExprContext, predIndex:int):
+            if predIndex == 0:
+                return self.precpred(self._ctx, 3)
+         
+
+
+
+
diff --git a/TP03/tree/Makefile b/TP03/tree/Makefile
new file mode 100644
index 0000000..027b338
--- /dev/null
+++ b/TP03/tree/Makefile
@@ -0,0 +1,18 @@
+PACKAGE = Tree
+MAINFILE = tree
+
+ifndef ANTLR4
+abort:
+	$(error variable ANTLR4 is not set)
+endif
+
+all: $(PACKAGE).g4
+	$(ANTLR4) $^ -Dlanguage=Python3 -visitor
+
+run: $(MAINFILE).py
+	python3 $^
+
+
+clean:
+	find . \( -iname "~" -or -iname "*.cache*" -or -iname "*.diff" -or -iname "log.txt" -or -iname "*.pyc" -or -iname "*.tokens" -or -iname "*.interp" \) -exec rm -rf '{}' \;
+	rm -rf $(PACKAGE)*.py
diff --git a/TP03/tree/TreeLexer.py b/TP03/tree/TreeLexer.py
new file mode 100644
index 0000000..1e045b1
--- /dev/null
+++ b/TP03/tree/TreeLexer.py
@@ -0,0 +1,60 @@
+# Generated from Tree.g4 by ANTLR 4.9.2
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+    from typing import TextIO
+else:
+    from typing.io import TextIO
+
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\2\6")
+        buf.write("\33\b\1\4\2\t\2\4\3\t\3\4\4\t\4\4\5\t\5\3\2\3\2\3\3\3")
+        buf.write("\3\3\4\6\4\21\n\4\r\4\16\4\22\3\5\6\5\26\n\5\r\5\16\5")
+        buf.write("\27\3\5\3\5\2\2\6\3\3\5\4\7\5\t\6\3\2\4\3\2\62;\4\2\13")
+        buf.write("\f\"\"\2\34\2\3\3\2\2\2\2\5\3\2\2\2\2\7\3\2\2\2\2\t\3")
+        buf.write("\2\2\2\3\13\3\2\2\2\5\r\3\2\2\2\7\20\3\2\2\2\t\25\3\2")
+        buf.write("\2\2\13\f\7*\2\2\f\4\3\2\2\2\r\16\7+\2\2\16\6\3\2\2\2")
+        buf.write("\17\21\t\2\2\2\20\17\3\2\2\2\21\22\3\2\2\2\22\20\3\2\2")
+        buf.write("\2\22\23\3\2\2\2\23\b\3\2\2\2\24\26\t\3\2\2\25\24\3\2")
+        buf.write("\2\2\26\27\3\2\2\2\27\25\3\2\2\2\27\30\3\2\2\2\30\31\3")
+        buf.write("\2\2\2\31\32\b\5\2\2\32\n\3\2\2\2\5\2\22\27\3\b\2\2")
+        return buf.getvalue()
+
+
+class TreeLexer(Lexer):
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    T__0 = 1
+    T__1 = 2
+    INT = 3
+    WS = 4
+
+    channelNames = [ u"DEFAULT_TOKEN_CHANNEL", u"HIDDEN" ]
+
+    modeNames = [ "DEFAULT_MODE" ]
+
+    literalNames = [ "<INVALID>",
+            "'('", "')'" ]
+
+    symbolicNames = [ "<INVALID>",
+            "INT", "WS" ]
+
+    ruleNames = [ "T__0", "T__1", "INT", "WS" ]
+
+    grammarFileName = "Tree.g4"
+
+    def __init__(self, input=None, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = LexerATNSimulator(self, self.atn, self.decisionsToDFA, PredictionContextCache())
+        self._actions = None
+        self._predicates = None
+
+
diff --git a/TP03/tree/TreeListener.py b/TP03/tree/TreeListener.py
new file mode 100644
index 0000000..17451a7
--- /dev/null
+++ b/TP03/tree/TreeListener.py
@@ -0,0 +1,39 @@
+# Generated from Tree.g4 by ANTLR 4.9.2
+from antlr4 import *
+if __name__ is not None and "." in __name__:
+    from .TreeParser import TreeParser
+else:
+    from TreeParser import TreeParser
+
+# This class defines a complete listener for a parse tree produced by TreeParser.
+class TreeListener(ParseTreeListener):
+
+    # Enter a parse tree produced by TreeParser#top.
+    def enterTop(self, ctx:TreeParser.TopContext):
+        pass
+
+    # Exit a parse tree produced by TreeParser#top.
+    def exitTop(self, ctx:TreeParser.TopContext):
+        pass
+
+
+    # Enter a parse tree produced by TreeParser#leaf.
+    def enterLeaf(self, ctx:TreeParser.LeafContext):
+        pass
+
+    # Exit a parse tree produced by TreeParser#leaf.
+    def exitLeaf(self, ctx:TreeParser.LeafContext):
+        pass
+
+
+    # Enter a parse tree produced by TreeParser#node.
+    def enterNode(self, ctx:TreeParser.NodeContext):
+        pass
+
+    # Exit a parse tree produced by TreeParser#node.
+    def exitNode(self, ctx:TreeParser.NodeContext):
+        pass
+
+
+
+del TreeParser
\ No newline at end of file
diff --git a/TP03/tree/TreeParser.py b/TP03/tree/TreeParser.py
new file mode 100644
index 0000000..a1d5b1b
--- /dev/null
+++ b/TP03/tree/TreeParser.py
@@ -0,0 +1,247 @@
+# Generated from Tree.g4 by ANTLR 4.9.2
+# encoding: utf-8
+from antlr4 import *
+from io import StringIO
+import sys
+if sys.version_info[1] > 5:
+	from typing import TextIO
+else:
+	from typing.io import TextIO
+
+
+def serializedATN():
+    with StringIO() as buf:
+        buf.write("\3\u608b\ua72a\u8133\ub9ed\u417c\u3be7\u7786\u5964\3\6")
+        buf.write("\26\4\2\t\2\4\3\t\3\3\2\3\2\3\2\3\3\3\3\3\3\3\3\6\3\16")
+        buf.write("\n\3\r\3\16\3\17\3\3\3\3\5\3\24\n\3\3\3\2\2\4\2\4\2\2")
+        buf.write("\2\25\2\6\3\2\2\2\4\23\3\2\2\2\6\7\5\4\3\2\7\b\7\2\2\3")
+        buf.write("\b\3\3\2\2\2\t\24\7\5\2\2\n\13\7\3\2\2\13\r\7\5\2\2\f")
+        buf.write("\16\5\4\3\2\r\f\3\2\2\2\16\17\3\2\2\2\17\r\3\2\2\2\17")
+        buf.write("\20\3\2\2\2\20\21\3\2\2\2\21\22\7\4\2\2\22\24\3\2\2\2")
+        buf.write("\23\t\3\2\2\2\23\n\3\2\2\2\24\5\3\2\2\2\4\17\23")
+        return buf.getvalue()
+
+
+class TreeParser ( Parser ):
+
+    grammarFileName = "Tree.g4"
+
+    atn = ATNDeserializer().deserialize(serializedATN())
+
+    decisionsToDFA = [ DFA(ds, i) for i, ds in enumerate(atn.decisionToState) ]
+
+    sharedContextCache = PredictionContextCache()
+
+    literalNames = [ "<INVALID>", "'('", "')'" ]
+
+    symbolicNames = [ "<INVALID>", "<INVALID>", "<INVALID>", "INT", "WS" ]
+
+    RULE_int_tree_top = 0
+    RULE_int_tree = 1
+
+    ruleNames =  [ "int_tree_top", "int_tree" ]
+
+    EOF = Token.EOF
+    T__0=1
+    T__1=2
+    INT=3
+    WS=4
+
+    def __init__(self, input:TokenStream, output:TextIO = sys.stdout):
+        super().__init__(input, output)
+        self.checkVersion("4.9.2")
+        self._interp = ParserATNSimulator(self, self.atn, self.decisionsToDFA, self.sharedContextCache)
+        self._predicates = None
+
+
+
+
+    class Int_tree_topContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+
+        def getRuleIndex(self):
+            return TreeParser.RULE_int_tree_top
+
+     
+        def copyFrom(self, ctx:ParserRuleContext):
+            super().copyFrom(ctx)
+
+
+
+    class TopContext(Int_tree_topContext):
+
+        def __init__(self, parser, ctx:ParserRuleContext): # actually a TreeParser.Int_tree_topContext
+            super().__init__(parser)
+            self.copyFrom(ctx)
+
+        def int_tree(self):
+            return self.getTypedRuleContext(TreeParser.Int_treeContext,0)
+
+        def EOF(self):
+            return self.getToken(TreeParser.EOF, 0)
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterTop" ):
+                listener.enterTop(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitTop" ):
+                listener.exitTop(self)
+
+        def accept(self, visitor:ParseTreeVisitor):
+            if hasattr( visitor, "visitTop" ):
+                return visitor.visitTop(self)
+            else:
+                return visitor.visitChildren(self)
+
+
+
+    def int_tree_top(self):
+
+        localctx = TreeParser.Int_tree_topContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 0, self.RULE_int_tree_top)
+        try:
+            localctx = TreeParser.TopContext(self, localctx)
+            self.enterOuterAlt(localctx, 1)
+            self.state = 4
+            self.int_tree()
+            self.state = 5
+            self.match(TreeParser.EOF)
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+    class Int_treeContext(ParserRuleContext):
+        __slots__ = 'parser'
+
+        def __init__(self, parser, parent:ParserRuleContext=None, invokingState:int=-1):
+            super().__init__(parent, invokingState)
+            self.parser = parser
+
+
+        def getRuleIndex(self):
+            return TreeParser.RULE_int_tree
+
+     
+        def copyFrom(self, ctx:ParserRuleContext):
+            super().copyFrom(ctx)
+
+
+
+    class NodeContext(Int_treeContext):
+
+        def __init__(self, parser, ctx:ParserRuleContext): # actually a TreeParser.Int_treeContext
+            super().__init__(parser)
+            self.copyFrom(ctx)
+
+        def INT(self):
+            return self.getToken(TreeParser.INT, 0)
+        def int_tree(self, i:int=None):
+            if i is None:
+                return self.getTypedRuleContexts(TreeParser.Int_treeContext)
+            else:
+                return self.getTypedRuleContext(TreeParser.Int_treeContext,i)
+
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterNode" ):
+                listener.enterNode(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitNode" ):
+                listener.exitNode(self)
+
+        def accept(self, visitor:ParseTreeVisitor):
+            if hasattr( visitor, "visitNode" ):
+                return visitor.visitNode(self)
+            else:
+                return visitor.visitChildren(self)
+
+
+    class LeafContext(Int_treeContext):
+
+        def __init__(self, parser, ctx:ParserRuleContext): # actually a TreeParser.Int_treeContext
+            super().__init__(parser)
+            self.copyFrom(ctx)
+
+        def INT(self):
+            return self.getToken(TreeParser.INT, 0)
+
+        def enterRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "enterLeaf" ):
+                listener.enterLeaf(self)
+
+        def exitRule(self, listener:ParseTreeListener):
+            if hasattr( listener, "exitLeaf" ):
+                listener.exitLeaf(self)
+
+        def accept(self, visitor:ParseTreeVisitor):
+            if hasattr( visitor, "visitLeaf" ):
+                return visitor.visitLeaf(self)
+            else:
+                return visitor.visitChildren(self)
+
+
+
+    def int_tree(self):
+
+        localctx = TreeParser.Int_treeContext(self, self._ctx, self.state)
+        self.enterRule(localctx, 2, self.RULE_int_tree)
+        self._la = 0 # Token type
+        try:
+            self.state = 17
+            self._errHandler.sync(self)
+            token = self._input.LA(1)
+            if token in [TreeParser.INT]:
+                localctx = TreeParser.LeafContext(self, localctx)
+                self.enterOuterAlt(localctx, 1)
+                self.state = 7
+                self.match(TreeParser.INT)
+                pass
+            elif token in [TreeParser.T__0]:
+                localctx = TreeParser.NodeContext(self, localctx)
+                self.enterOuterAlt(localctx, 2)
+                self.state = 8
+                self.match(TreeParser.T__0)
+                self.state = 9
+                self.match(TreeParser.INT)
+                self.state = 11 
+                self._errHandler.sync(self)
+                _la = self._input.LA(1)
+                while True:
+                    self.state = 10
+                    self.int_tree()
+                    self.state = 13 
+                    self._errHandler.sync(self)
+                    _la = self._input.LA(1)
+                    if not (_la==TreeParser.T__0 or _la==TreeParser.INT):
+                        break
+
+                self.state = 15
+                self.match(TreeParser.T__1)
+                pass
+            else:
+                raise NoViableAltException(self)
+
+        except RecognitionException as re:
+            localctx.exception = re
+            self._errHandler.reportError(self, re)
+            self._errHandler.recover(self, re)
+        finally:
+            self.exitRule()
+        return localctx
+
+
+
+
+
diff --git a/TP03/tree/TreeVisitor.py b/TP03/tree/TreeVisitor.py
new file mode 100644
index 0000000..e2a63ba
--- /dev/null
+++ b/TP03/tree/TreeVisitor.py
@@ -0,0 +1,28 @@
+# Generated from Tree.g4 by ANTLR 4.9.2
+from antlr4 import *
+if __name__ is not None and "." in __name__:
+    from .TreeParser import TreeParser
+else:
+    from TreeParser import TreeParser
+
+# This class defines a complete generic visitor for a parse tree produced by TreeParser.
+
+class TreeVisitor(ParseTreeVisitor):
+
+    # Visit a parse tree produced by TreeParser#top.
+    def visitTop(self, ctx:TreeParser.TopContext):
+        return self.visitChildren(ctx)
+
+
+    # Visit a parse tree produced by TreeParser#leaf.
+    def visitLeaf(self, ctx:TreeParser.LeafContext):
+        return self.visitChildren(ctx)
+
+
+    # Visit a parse tree produced by TreeParser#node.
+    def visitNode(self, ctx:TreeParser.NodeContext):
+        return self.visitChildren(ctx)
+
+
+
+del TreeParser
\ No newline at end of file
diff --git a/TP03/tree/main.py b/TP03/tree/main.py
new file mode 100644
index 0000000..3e3c8d6
--- /dev/null
+++ b/TP03/tree/main.py
@@ -0,0 +1,35 @@
+from TreeLexer import TreeLexer
+from TreeParser import TreeParser
+from TreeVisitor import TreeVisitor
+
+from antlr4 import InputStream, CommonTokenStream
+import sys
+
+class MyTreeVisitor(TreeVisitor):
+    def visitLeaf(self, ctx):
+        return True
+    
+    def visitNode(self, ctx):
+        nodes = ctx.int_tree();
+        if(len(nodes)>2):
+            return False
+        for node in nodes:
+            if(not self.visit(node)):
+                return False
+        return True
+    
+    def visitTop(self, ctx):
+        return self.visit(ctx.int_tree())
+
+def main():
+    lexer = TreeLexer(InputStream(sys.stdin.read()))
+    stream = CommonTokenStream(lexer)
+    parser = TreeParser(stream)
+    tree = parser.int_tree_top()
+    visitor = MyTreeVisitor()
+    b = visitor.visit(tree)
+    print("Is it a binary tree ? " + str(b))
+
+
+if __name__ == '__main__':
+    main()