From 601e9f0dd60c9ed3d8c5a57058adafc045a4874a Mon Sep 17 00:00:00 2001
From: Louis <me@louisgallet.fr>
Date: Fri, 24 Nov 2023 14:33:51 +0100
Subject: [PATCH] vault backup: 2023-11-24 14:33:51

---
 Algo/B2/Exercises/Repetitive tutorial.md | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/Algo/B2/Exercises/Repetitive tutorial.md b/Algo/B2/Exercises/Repetitive tutorial.md
index 59f9ef5..f3469d5 100644
--- a/Algo/B2/Exercises/Repetitive tutorial.md	
+++ b/Algo/B2/Exercises/Repetitive tutorial.md	
@@ -76,17 +76,15 @@ def power(x, n):
 ## Exercise 1.4
 
 ```python
-def fibo(n: int) -> int:
-	a = 0
-	b = 1
-	c = 0
-	i = 2
-	while i <= n:
-		c = a + b
-		a = b
-		b = c
-		i += 1
-	return b
+def fibo(n):
+	prev = 1 #f0
+	cur = 1 #f1
+	while n> 1:
+		(prev, cur) = (cur, prev+cur)
+		n -= 1
+	return cur
+# OR
+
 ```
 
 ## Exercise 1.5