This folder contains a program that implements the 2-Sum algorithm wherein a large number of 64-bit integers and a range of target values is provided, and the goal is to compute the number of target ...
LeetCode题目中数组和字符串的占比很大。在Array(数组)和String(字符串)的题目中,很多都是用双指针去解决问题的。在此综合几道Array中双指针的题目将这一思想方法汇总学习。后续还会有双 ...
原创 最新推荐文章于 2023-12-29 19:56:56 发布 · 256 阅读 two sum 思路: 一次哈希,边哈希边检测另一个数字是否已经在dict中(二次哈希也可) 时间复杂度O(n) 空间复杂度O(n) PS: 其实还可以先排序再 ...
class Solution: def twoSum(self, nums: List[int], target: int) -> List[int]: length = len(nums) for i in range(length): for j in range(i+1,length): if nums[i]+nums[j ...