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목록4Sum (1)
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LeetCode: 18. 4Sum
class Solution: def fourSum(self, nums: List[int], target: int) -> List[List[int]]: ret = [] nums.sort() previ = None for i in range(len(nums)-3): if nums[i] == previ: continue prevj = None for j in range(i+1, len(nums)-2): if nums[j] == prevj: continue preSum = nums[i] + nums[j] l, r = j + 1, len(nums) - 1 while l < r: summation = preSum + nums[l] + nums[r] if summation < target: l += 1 elif su..
Computer Science/Coding Test
2021. 8. 22. 22:05