LeetCode（16）3Sum Closest

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LeetCode（16）3Sum Closest

题目 Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution. For example, given array S = {-1…

leetcode第16题--3Sum Closest

Problem:Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution. For example, given array S…

LeetCode（16）：最接近的三数之和

Medium! 题目描述: 给定一个包括 n 个整数的数组 nums 和一个目标值 target.找出 nums 中的三个整数,使得它们的和与 target 最接近.返回这三个数的和.假定每组输入只存在唯一答案. 例如,给定数组 nums = [-1,2,1,-4], 和 target = 1. 与 target 最接近的三个数的和为 2. (-1 + 2 + 1 = 2). 解题思路: 这道题让我们求最接近给定值的三数之和,是在之前那道三数之和的基础上又增加了些许难度,那么这道题让我们返回一…

LeetCode（15） 3Sum

题目 Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note: Elements in a triplet (a,b,c) must be in non-descending order. (ie, a ≤ b ≤ c) The so…

LeetCode（15）3Sum

题目如下: Python代码: def threeSum(self, nums): res = [] nums.sort() for i in xrange(len(nums)-2): if i > 0 and nums[i] == nums[i-1]: continue l, r = i+1, len(nums)-1 while l < r: s = nums[i] + nums[l] + nums[r] if s < 0: l +=1 elif s > 0: r -= 1 el…

Web 在线文件管理器学习笔记与总结（15）剪切文件夹（16）删除文件夹

(15)剪切文件夹 ① 通过rename($oldname,$newname) 函数实现剪切文件夹的操作 ② 需要检测目标文件夹是否存在,如果存在还要检测目标目录中是否存在同名文件夹,如果不存在则剪切 dir.function.php 添加: //剪切文件夹 function cutFolder($src,$dst){ if(!file_exists($dst)){ return '目标目录不存在'; }else{ if(!is_dir($dst)){ return '不是目录'; }else{…