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Problem Solving/LeetCode

Today's Challenge

fabichoi 2022. 10. 23. 23:45

https://leetcode.com/problems/set-mismatch/

 

Set Mismatch - LeetCode

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leetcode.com

생각보다 간단하게 수학적인 식으로 풀 수 있다.

class Solution:
    def findErrorNums(self, nums: List[int]) -> List[int]:        
        l = len(nums)
        s, a, b = l*(l+1) // 2, sum(nums), sum(set(nums))        
        
        return [a-b, s-b]
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