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Algo/B2/Exercises/Repetitive tutorial.md

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+## Exercise 1.1
+```python
+def zorglub(n: int) -> int:
+	j = 1
+	k = 0
+	i = 1
+	while i <= n:
+		j = i * j
+		k = j + k
+		i = i + 1
+	return k
+```
+
+The function return the sum of the factorial of n
+
+## Exercise 1.2
+```
+def multiplication(x: int, y: int) -> int:
+	result = 0
+	for i in range(y):
+		result = result + x
+	return result
+
+def multiplication2(x: int, y: int) -> int:
+	result = 0
+	if x < 0 and y < 0:
+		i = 0
+		x = -x 
+		y = -y
+        while i < y:
+            result = result + x
+            i += 1
+        return result
+	elif y < 0:
+		y = -y
+		i = 0
+        while i < y:
+            result = result + x
+            i += 1
+        return -result
+	else:
+		i = 0
+        while i < y:
+            result = result + x
+            i += 1
+        return result