add exs

cours/tp1/ex2.py

@@ -0,0 +1,12 @@
+def from_base(digits, base):
+    power = 1
+    number = 0
+    for digit in reversed(digits):
+        number += power * digit
+        power *= base
+    return number
+    
+digits = [int(input("digit_a : ")), int(input("digit_b : ")), int(input("digit_c : ")), int(input("digit_c : "))]
+base = int(input("base : "))
+
+print(from_base(digits, base))