def fibo_iteratif(n):
u = 1
v = 1
i = 2
while i < n+1:
u,v = v,u+v
i = i+1
return u
def fibo_iteratif(n): u = 1 v = 1 i = 2 while i < n+1: u,v = v,u+v i = i+1 return u