.gitignore

-**/__pycache__
\ No newline at end of file
+**/__pycache__
+**/test.py

polynome.py

@@ -9,19 +9,16 @@ class polynome():
         self.prime_mod = 229
 
     def show(self):
-        # TODO: OPTIMIZE IFs
         for i in range(len(self.coefs) - 1, -1, -1):
+            power = ""
             if self.coefs[i] != 0:
                 coef = str(self.coefs[i])
+                if i != 0: # its not 0's degree
+                    power = f"x^{i} + "
             else:
                 coef = ""
-            if i != 0:
-                power = f"x^{i} +"
-            else:
-                power = ""
-
-            print(f"{coef}{power} ", end="")
-        print()
+            print(f"{coef}{power}", end="")
+        print() # new line
     
     def add(self, poly_2):
         coeff_poly_1 = self.coefs

reed_solomon.py

@@ -8,5 +8,10 @@ def lagrange_compute(l: list) -> polynome:
 	pass
 
 def check_nb_error(l: list, p: polynome) -> int:
-	pass
-
+	
+	nbr_error = 0
+	for _, item in enumerate(l):
+		if (item % p.prime_mod) != (p.evaluate(_) % p.prime_mod):
+			print(f"{item} != p.evaluate({_}) = {p.evaluate(_)}")
+			nbr_error += 1
+	return nbr_error