3Sum

[LeetCode] 3Sum

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0,1
codingEskimo·2018-03-20 10:00

3sum 不sort

classSolution{publicList>threeSum(int[]nums){List>res=newArrayListfirstNum=newHashSetsecondNum=newHashSetthirdNum=newHashSet(Arrays.asList(nums[i],nums[j],sum-nums[j])));thirdNum.add(nums[j]);}else{se
greatfulltime·2018-02-10 14:04

16. 3Sum Closest(Python3)

16.3SumClosest(Python3)题目GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesolution.F
灵魂画手-编程如画·2018-01-25 10:03

leetcode双指针问题

3Sum问题GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?
微雨渡江·2018-01-19 12:51

LeetCode 大纲

辅助，找到相加为target的值Leetcode15.3Sum3Sum确定一个数，然后找另外两个数相加等于其相反数即可Leetcode16.3SumClosestLeetcode18.4Sum4Sum与3Sum
DoUUnderstand·2018-01-09 17:54

[LeetCode] 15. 3Sum

传送门DescriptionGivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,given
zxzhang·2017-12-30 19:00

3Sum Closest

题目GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesolution.Forexample,givenarrayS={
执剑者罗辑·2017-12-25 00:42

[Leetcode] 3Sum Closest

RelatedTopics：[Array][TwoPointers]SimilarQuestions:[3Sum][[3SumSmaller]题目：GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber
lijia069·2017-12-20 17:29

3sum 4sum

Paste_Image.png思路：对数据进行排序2)为了得到非重复的三元组不断移动哨兵位置时间复杂度为O(n*n)对于4sum问题其时间复杂度为O(n^3)vector>threeSum(vector&nums){vector>res;if(nums.size()hh={nums[i],nums[left],nums[right]};//sort(hh.begin(),hh.end());res
rsliumin1994·2017-12-06 05:25

Snapchat SDE 电面+onsite面经

题目是2sum,3sum,4sum1.LintCode:2SumLintCode原题链接：http:/
Rose_Li_97·2017-11-21 20:44

3Sum

题目GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0
执剑者罗辑·2017-10-22 20:19

oracle表自连接

3sum(casewhensubject='数学'thenscoreend)as
月夜楓·2017-10-16 20:34

leetcode -- 15. 3Sum 【问题转化2sum + 避免重复计算的方法（规定次序）】

题目GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0
TheSnowBoy_2·2017-10-02 17:50

15. 3Sum

Description:GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenar
CharlieGuo·2017-09-12 16:24

15. 3Sum

Description:GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenar
CharlieGuo·2017-09-12 16:24

leetcode[3Sum]//待整理多种解法

解法一：classSolution{//要找出和为0的三个数，那么就相当于找出两个数，它们的和等于第三个数的值的相反数publicList>threeSum(int[]nums){List>res=newArrayList<>();Arrays.sort(nums);//先将数组排序，这样可以防止取到重复的三元组for(inti=0;i
Carmelo_Z·2017-09-10 17:38

[Leetcode][求和问题2Sum, 3Sum, 4Sum, KSum]相关题目汇总，分析，总结

KSum求解方法,适用2Sum,3Sum,4Sum：方法一：暴力，就是枚举所有的K-s
蛮三刀把刀·2017-08-31 04:21

leetcode 15. 3Sum 以及2Sum的问题的处理和求解

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0,1
JackZhangNJU·2017-08-30 16:00

Lintcode59 3Sum Closest solution 题解

【题目描述】GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Notice:Youmayassumethateachinputwouldhaveexactlyonesolution.给一个包含n个整数的数组S
Winnielyn·2017-08-24 13:47

Lintcode57 3Sum solution 题解

【题目描述】GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Notice:Elementsinatriplet(a,b,c)mustbeinnon-descendingorder.(ie,a≤b≤c)Theso
Winnielyn·2017-08-19 15:55

[Leetcode][求和问题2Sum/3Sum/4Sum/KSum]相关题目汇总/分析/总结

以下链接均为我博客内对应博文，有解题思路和代码，不定时更新补充。目前范围：Leetcode前150题K-SUM解题思路本总结参考：博客，Sigmainfy，Ksum整理求和问题描述(Ksumproblem)：Ksum的求和问题一般是这样子描述的：给你一组N个数字(比如vectornum),然后给你一个目标常数(比如inttarget)，我们的目的是在这一堆数里面找到K个数字，使得这K个数字的和等于
Rude3Knife·2017-08-12 05:53

16. 3Sum Closest

题目大概GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesolution.1题目大概是说给一个数组找到三个整数使其相加
l_b_n·2017-08-05 12:43

leetcode15. 3Sum

题目描述GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1
云胡_·2017-07-31 22:40

leetcode k sum 问题总结

文章参考知乎leetcode之2sum丶3sum(closest)丶4sum算法总结。12sum原题链接请点击这里。
BeLLESS·2017-07-15 20:42

16. 3Sum Closest

原题GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesolution.Forexample,givenarrayS={
daigualu·2017-06-14 10:00

15. 3Sum

这道题最难的是所求解不能包含重复的triplets。原题GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Ex
alg-flody·2017-06-14 08:41

15. 3Sum

这道题最难的是所求解不能包含重复的triplets。原题GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Ex
daigualu·2017-06-14 08:00

leetcode15: 3Sum

ps:既然转向大数据，java是必须的技能。所以以后的leetcode都使用java来刷题。题目GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontain
好记性不如烂笔记·2017-06-08 22:01

算法设计与分析（10）-- 3Sum Closest（难度：Medium）

算法设计与分析（10）题目：3SumClosest问题描述：GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesolut
alexlau8·2017-05-10 10:54

[LeetCode] 15. 3Sum

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0,1
xxx亦凡桑·2017-05-09 17:16

3Sum

本题的要求是在一个输入列表里找出所有三个数加起来等于0的组合。GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets
YouyouPan·2017-05-07 16:46

LeetCode刷题（C++）——3Sum（Medium）

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0,1
YF_Li123·2017-05-04 19:17

Lintcode57 3Sum solution 题解

【题目描述】GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Notice:Elementsinatriplet(a,b,c)mustbeinnon-descendingorder.(ie,a≤b≤c)Theso
代码码着玩·2017-04-26 08:43

【算法】2SUM/3SUM/4SUM问题

常见的有2SUM，3SUM，4SUM问题，还有各种SUM问题的变种.Leetcode上SUM问题包括：1.2SUM15.3Sum16.3SumClosest18.4Sum454.4SumII2SUM问题最常见的是
哈乐笑·2017-04-26 01:50

算法设计与分析（9）-- 3Sum（难度：Medium）

算法设计与分析（9）题目：3Sum问题描述：GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?
alexlau8·2017-04-20 19:10

算功@LeetCode:3Sum

Log【170409】首次尝试该题不成（提交01）【170410】完成该题的Python版初步解法（提交02）【170412】完成笔记回顾【170416】看完参考答案并记录思路题目3Sum【题目类型备注
苏尚君·2017-04-13 01:11

数组之2Sum，3Sum，4Sum，3Sum closest总结

数组之twoSumTwoSum描述Givenanarrayofintegers,findtwonumberssuchthattheyadduptoaspecifictargetnumber.ThefunctiontwoSumshouldreturnindicesofthetwonumberssuchthattheyadduptothetarget,whereindex1mustbelessthan
Lily_whl·2017-04-10 20:17

leetcode解题之 15. 3Sum Java版（结果为目标值的三个数字）

15.3SumGivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.给定一个数组，给定一个目标值，从里面找出三个值
mine_song·2017-04-06 18:16

等边三角形（dfs剪枝）

输入格式首先输入一个整数n(3sum/3||b>sum/3||c>sum/3)return;if(a==b&&b==c&&a==sum/3)flag++;代码示例#include#include#include
Feynman1999·2017-03-31 11:58

8. 3Sum FROM Leetcode

题目GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0
时光杂货店·2017-03-15 11:11

LeetCode 15. 3Sum

LeetCode第15題:3Sum。題目描述題目解釋：給定一個整數陣列S，找出裡面3個element相加為0的所有組合。
就是91·2017-03-09 14:39

遇到的不会的面试题

1.写一个函数实现以下功能:sum(1,2);//3sum(3,4,5);//12答:知识点:函数内部属性arguments保存所有传入该函数的参数functionsum(){varn=0;for(vari
恰西v·2017-02-24 00:59

重读《JavaScript高级程序设计》——读书笔记（1）

number类型中NaN(notanumber)表示本来返回数字结果返回的不是数字Object类型construtor构造函数,用来保存当前对象的函数arguments存放该函数的所有参数sum(1,2)//3sum
恰西v·2017-02-22 16:07

Algorithm之3sum closest及负数在Java中的表示

阅读更多由一道算法题想到的1、16.3SumClosestGivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesoluti
Lixh1986·2017-01-23 14:00

LeetCode: 3Sum

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0,1
皮斯卡略夫·2017-01-06 17:00

3Sum（三数和）

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.（给定含有n个元素的整型数组S，从数组S中找出所有的唯一三元组使得a+b+c=0成立）Note:Thesolutionsetmustnotcontaindupli
迷知凡·2017-01-06 14:46

15. 3Sum hash解法 vs 双指针解法

GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,0,1
yuccess·2017-01-05 00:30

15. 3Sum

题目：GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS=[-1,
juexin·2016-12-28 00:33

3Sum Closest

阅读更多问题描述GivenanarraySofnintegers,findthreeintegersinSsuchthatthesumisclosesttoagivennumber,target.Returnthesumofthethreeintegers.Youmayassumethateachinputwouldhaveexactlyonesolution.Forexample,givenar
economist·2016-12-22 18:00

3Sum

阅读更多问题描述GivenanarraySofnintegers,arethereelementsa,b,cinSsuchthata+b+c=0?Findalluniquetripletsinthearraywhichgivesthesumofzero.Note:Thesolutionsetmustnotcontainduplicatetriplets.Forexample,givenarrayS
economist·2016-12-22 17:00
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