X

DAYS

:

HOUR

:

MINS

:

SEC

Copied to Clipboard
GCD of two numbers
School Accuracy: 67.2% Submissions: 7297 Points: 0

Given two positive integers A and B, find GCD of A and B.


Example 1:

Input: A = 3, B = 6
Output: 3
Explanation: GCD of 3 and 6 is 3


Example 2:

Input: A = 1, B = 1
Output: 1
Explanation: GCD of 1 and 1 is 1


Your Task:  
You don't need to read input or print anything. Complete the function gcd() which takes two positive integers as input parameters and returns an integer.


Expected Time Complexity: O(log(min(A, B)))
Expected Auxiliary Space: O(1)


Constraints:
1 ≤ A, B ≤ 109

We are replacing the old Disqus forum with the new Discussions section given below.
Click here to view old Disqus comments.


to report an issue on this page.

Editorial

We strongly recommend solving this problem on your own before viewing its editorial. Do you still want to view the editorial?

Yes

All Submissions

My Submissions:

Login to access your submissions.

GCD of two numbers

Output Window