原文:LeetCode 15. 三数之和(3Sum)

题目描述 给定一个包含 n 个整数的数组nums,判断nums中是否存在三个元素 a,b,c ,使得a b c 找出所有满足条件且不重复的三元组。 注意:答案中不可以包含重复的三元组。 解题思路 首先对数组从小到大排序,从一个数开始遍历,若该数大于 ,后面的数不可能与其相加和为 ,所以跳过 否则该数可能是满足要求的第一个数,这样可以转化为求后面数组中两数之和为该数的相反数的问题。定义两个指针一前 ...

2018-05-04 11:25 1 7433 推荐指数:

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[LeetCode] 15. 3Sum之和

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 ...

Wed May 06 21:01:00 CST 2015 24 74925
15. 3Sum[M]三之和

the sum of zero. Note: The solution set must not contain ...

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LeetCode15. 3Sum

3Sum 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 ...

Wed Jul 09 03:38:00 CST 2014 0 4354
[LeetCode] 15. 3Sum ☆☆

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 ...

Fri Feb 17 06:29:00 CST 2017 0 2295
LeetCode——15. 3Sum

一.题目链接:https://leetcode.com/problems/3sum/ 二.题目大意:  3和问题是一个比较经典的问题,它可以看做是由2和问题(见http://www.cnblogs.com/wangkundentisy/p/7525356.html)演化而来的。题目的具体要求 ...

Thu May 24 05:44:00 CST 2018 1 4408
 
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