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Greatest common divisors in Python
Suppose we have a list of positive numbers called nums, we have to find the largest positive number that divides each of the number.
So, if the input is like [14,28,70,56], then the output will be 14.
To solve this, we will follow these steps −
- ans := first element of nums
- for each x in nums, do
- ans := gcd of ans and x
- return ans
Let us see the following implementation to get better understanding −
Example
import math class Solution: def solve(self, nums): ans = nums[0] for x in nums: ans = math.gcd(ans, x) return ans ob = Solution() print(ob.solve([14,28,70,56]))
Input
[14,28,70,56]
Output
14
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