"""
数组拆分
"""
from typing import List


class Solution:
    def arrayPairSum(self, nums: List[int]) -> int:
        sum = 0
        nums.sort()
        for i in range(0, len(nums), 2):
            sum += nums[i]
        return sum


if __name__ == '__main__':
    result = Solution().arrayPairSum([1, 4, 3, 2])
    print(result)