Leetcode - 561. Array Partition I

문제

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LeetCode

답안

class Solution:
    def arrayPairSum(self, nums: List[int]) -> int:
        sorted_nums = sorted(nums)

        return sum([num for idx, num in enumerate(sorted_nums) if not idx % 2])

좀더 간결하게

class Solution:
    def arrayPairSum(self, nums: List[int]) -> int:
        return sum(sorted(nums)[::2])