Last Updated : 21 Jun, 2022
Python3
# Python program to demonstrate working of extended
# Euclidean Algorithm
# function for extended Euclidean Algorithm
def gcdExtended(a, b):
# Base Case
if a == 0 :
return b,0,1
gcd,x1,y1 = gcdExtended(b%a, a)
# Update x and y using results of recursive
# call
x = y1 - (b//a) * x1
y = x1
return gcd,x,y
# Driver code
a, b = 35,15
g, x, y = gcdExtended(a, b)
print("gcd(", a , "," , b, ") = ", g)
Output:
gcd(35, 15) = 5
Time Complexity: O(log(max(A, B)))
Auxiliary Space: O(log(max(A, B))), keeping recursion stack in mind.
Please refer complete article on Basic and Extended Euclidean algorithms for more details!
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