Combinations

Leetcode #40. Combination Sum II 组合求和2 解题报告

1解题思想这道题是昨天的升级版，先看看这个Leetcode#39.CombinationSum组合求和解题报告这道题的改变就是每个位置的数只能用一次了，但是如果本身就给了多个的话就无所谓。
学术状态抽奖器·2020-08-09 18:49

leetcode377 - Combination Sum IV - medium

Givenanintegerarraywithallpositivenumbersandnoduplicates,findthenumberofpossiblecombinationsthatadduptoapositiveintegertarget.Example
little_veggie·2020-08-09 11:00

递归与回溯

前言之前在做的几道题CombinationSum、GenerateParentheses、Permutations，涉及到了递归和回溯的问题。当时觉得这是一回事儿，都是自己调用自己，没太注意。
WhiteJunior·2020-08-09 09:23

android studio中AndroidJUnit4单元测试注解错误和recyclerview-v7 版本冲突

bulid.gradle中的dependencies的依赖jar包错误recyclerview-v7Therearesomecombinationsoflibraries,ortoolsandlibraries
zhaohan___·2020-08-07 22:22

Xiang Li

importmathimportcmathimportstringimportsysimportbisectfromqueueimportQueue,LifoQueue,PriorityQueuefromitertoolsimportpermutations,combinationsfromcollectionsimportdeque
Li xiang007·2020-08-07 21:43

LeetCode39:组合总和

classSolution{publicList>combinationSum(int[]candidates,inttarget){//创建结果数组List>ans=newArrayList(),ans
凌晨两点半还不回家·2020-08-07 16:31

leetcode Generate Parentheses 回溯算法

题目：Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
lifqjdlut·2020-08-07 15:06

龙书D3D11章节习题答案(第八章)

Chapter8:Texturing1.Experimentwiththe“Crate”demobychangingthetexturecoordinatesandusingdifferentaddressmodecombinationsandfilteringoptions.Inparticular
独饮月色的猫·2020-08-06 13:08

Leetcode:Combination Sum

Givenasetofcandidatenumbers(C)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes.Note
nanjunxiao·2020-08-06 12:31

Leetcode：Combination Sum II

Givenacollectionofcandidatenumbers(C)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.EachnumberinCmayonlybeusedonceinthecombination.Note
nanjunxiao·2020-08-06 12:31

MacOS Terminal 常用快捷键大全

WorkwithTerminalwindowsandtabs编辑命令行|Editacommandline选择操作|SelectandfindtextinaTerminalwindow快捷键组合|KeyCombinations
郝伟老师（安徽理工大学）·2020-08-05 15:06

Leetcode刷题笔记题解（C++）：17. 电话号码的字母组合

,{'3',"def"},{'4',"ghi"},{'5',"jkl"},{'6',"mno"},{'7',"pqrs"},{'8',"tuv"},{'9',"wxyz"}};vectorletterCombinations
LonelDemo·2020-08-05 04:56

Generate Parentheses 生成括号 LeetCode 22

问题Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
gary-liu·2020-08-05 01:24

力扣练习——两数之和（python语言）

力扣练习——两数之和（python语言）问题描述思路和提示个人思路官方提示代码及描述代码编写过程（这里是学习过程）总结代码优化参考代码学到的语句1.enumerate函数2.permutations函数3.combinations
小明学python·2020-08-04 21:06

python计算组合数的两种实现方法

importmathimportitertoolsfromitertoolsimportcombinationsprint(unique)##[12345567823]i=0forcombinationincombinations
aespresso·2020-08-04 20:52

leetCode 93.Restore IP Addresses (恢复IP地址) 解题思路和方法

Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddresscombinations.Forexample
xygy8860·2020-08-04 08:18

Leetcode刷题记——22. Generate Parentheses(生成括号)

一、题目叙述：Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
爱胡椒的小白兔呢·2020-08-04 01:30

递归与回溯

[LeetCode]LetterCombinationsofaPhoneNumber电话号码的字母组合给定一个仅包含数字2-9的字符串，返回所有它能表示的字母组合。
十瓣月亮·2020-08-03 22:41

Lua：模式匹配及捕获

string.findstring.gmatchstring.gsubstring.match一、CharacterClassAcharacterclassisusedtorepresentasetofcharacters.Thefollowingcombinationsarea
test1280·2020-08-03 04:12

自监督、半监督、无监督学习，傻傻分不清楚？最新综述来帮你！

arXiv新出的论文：AsurveyonSemi-,Self-andUnsupervisedTechniquesinImageClassification（Similarities,Differences&Combinations
我爱计算机视觉·2020-08-01 13:10

39. & 40. Combination Sum I & II

39.CombinationSum题目截图publicList>combinationSum(int[]candidates,inttarget){ArrayList>res=newArrayList(
Super_Alan·2020-08-01 11:41

找出k个数相加得n的所有组合

Findallpossiblecombinationsofkpositivenumbersthatadduptoanumbern,eachcombinationshouldbeauniquesetofnumbers
aoshu5722·2020-08-01 11:03

【面试题】给一个数组和目标值，求数组中和为目标值的所有组合

publicclassSolution{ArrayList>list=newArrayList>combinationSum(int[]num,inttarget){ArrayListls=newArrayListls
下个路口见_20·2020-08-01 10:00

Python 找出所有相加之和为n的k个组合，组合中只允许含有1-9的正整数，并且每种组合中不存在重复的数字。

---------------------------------------------------------------------------------fromitertoolsimportcombinationsdefnum
-啦-啦-啦-·2020-08-01 10:16

40.组合总和2

classSolution{publicList>combinationSum2(int[]candidates,inttarget){Arrays.sort(candidates);List>lists
_道友请留步_·2020-08-01 09:11

[LeetCode]39.Combination Sum

【题目】Givenasetofcandidatenumbers(C)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes.Note
SunnyYoona·2020-07-31 14:19

3.python的几个函数：itertools.combinations()排列组合、zip()压缩打包、format、enumerate、np.linalg.norm求范数

文章目录1.itertools.combinations()1.1对于集合1.2对列表2.combinations_with_replacement()2.1集合2.2列表3.zip(),*zip()4
贫僧不懂·2020-07-31 14:05

Keil中的环境变量和使用

KeySequenceforToolParametersUseKeySequencestopassargumentsfromµVisiontoexternaluserprograms.KeySequencesarecombinationsofaKeyCodeandaFileCode.Keysequencescanbeused
老猿-WB·2020-07-30 22:04

VMware Coding Challenge: Possible Scores && Summary: static

CombinationSumI那道题的变体1/*2*Completethefunctionbelow.3*/45staticintis_score_possible(intscore,int[]increments
weixin_34319640·2020-07-30 21:44

leetcode 93. Restore IP Addresses

题目Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddresscombinations.Forexample
kevinjqy·2020-07-30 12:01

17.电话号码的字母集合

示例:输入："23"输出：["ad","ae","af","bd","be","bf","cd","ce","cf"].解答：递归实现：publicstaticListletterCombinations
夜空中最亮的星_6c64·2020-07-30 09:45

Python中实现排列组合，从M个元素中有序或者无序选取N个元素的集合

importitertools'''无序排列combinations(M个数的集合,选取N个数为一组)'''c=list(itertools.combinations([1,2,3,4],2))print
Book_bei·2020-07-30 04:48

leetcode 17. 电话号码的字母组合

题目描述https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/思路整理看到这个题，想法的算法就是枚举，枚举的实现也有也有多种方式
CrazyShawnLiu·2020-07-30 00:19

leecode 解题总结：93. Restore IP Addresses

includeusingnamespacestd;/*问题:Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddresscombinations.Forexample
天地一扁舟·2020-07-29 10:53

独热编码(one-hot encoding)

1、定义维基百科上的定义如下：https://en.wikipedia.org/wiki/One-hotone-hotisagroupofbitsamongwhichthelegalcombinationsofvaluesareonlythosewithasinglehigh
枫泠·2020-07-28 14:20

Leetcode: Combination of a Phone Number

Givenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
算法鱼·2020-07-28 13:07

数组（列表）全排列、组合实现方法 python

python语言简单、方便，其内部可以快速实现排列组合算法，下面做简单介绍：1、一个列表数据任意组合：【自带的库itertools.combinations】#_*_coding:utf-8_*_#__
suibianshen2012·2020-07-28 11:51

python实现排列与组合数的计算及输出所有排列组合结果

importitertoolslist1=[1,2,3,4,5]#所有组合结果print(list(itertools.combinations(list1,5)))list2=[1,2,3,4]#两个
ROOOOOOM·2020-07-28 08:37

(java)leetcode-22

GenerateParenthesesGivennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
xuyueqing931225·2020-07-28 06:41

(java)leetcode-17

LetterCombinationsofaPhoneNumberGivenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
xuyueqing931225·2020-07-28 06:41

Leetcode OJ 77 Combinations [Medium]

LeetcodeOJ77Combinations[Medium]题目描述：Giventwointegersnandk,returnallpossiblecombinationsofknumbersoutof1
曦西·2020-07-28 05:18

python实现三个或三个以上列表之间元素相互组合

代码如下：fromitertoolsimportcombinationsfromfunctoolsimportreducelist1=['已通过','未审核'
Mojitoice·2020-07-27 16:25

编译原理 虎书 读书笔记

Eachstatecanbepickedornot,sothenumberofcombinationsshouldbe2^n.Ch31.Whatisrecursivedescendent?
Bluesilence·2020-07-27 14:52

Python数据结构和算法(五)：回溯真没你想的那么难(十道leetcode真题带你跨过这个坑)！

文章目录前文回溯算法定义和应用题型回溯算法定义回溯算法应用题型回溯算法题型讲解combinationsum系列39.CombinationSum40.CombinationSumII216.CombinationSumIIIsubsets
sandwu·2020-07-27 13:49

scala数组,集合——函数大全（贼全）

addString(stringbuffer,sep)10.aggregate11.apply12.canEqual13.charAt14.clone15.collect16.collectFirst17.combinations18
锦超风采·2020-07-27 11:30

【LeetCode】C# 17、Letter Combinations of a Phone Number

Givenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
RUN_D·2020-07-16 07:30

Letter Combinations of a Phone Number

publicclassSolution{publicListletterCombinations(Stringdigits){LinkedListans=newLinkedList();if(digits.length
夜皇雪·2020-07-16 01:32

Letter Combinations of a Phone Number

这题是递归比迭代清晰多了。这个dfs挺有意思的，我一直在想怎么用for循环递归不同的值，没想出来，看了答案豁然开朗。从前脑子里没有for+递归那种一层层向下的模型，现在再看这种题，脑子里自然就有了那种N皇后一样的n*n的矩阵模型。privatestaticfinalString[]KEYS={"","","abc","def","ghi","jkl","mno","pqrs","tuv","wxy
DrunkPian0·2020-07-16 01:16

Combinations 解题报告

77.CombinationsMySubmissionsQuestionTotalAccepted:67261TotalSubmissions:201946Difficulty:MediumGiventwointegersnandk
bruce128·2020-07-15 21:11

力扣 216. 组合总和 III java实现

中不允许出现重复数字，所以我们需要传递一个下标，防止元素重复选取，代码如下:classSolution{List>list=newArrayList>();Dequedeque=newArrayDeque>combinationSum3
夜雨@声烦·2020-07-15 19:08
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