Combinations

LeetCode 电话号码的字母组合

电话号码的字母组合题目来源：https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number题目给定一个仅包含数字2-9的字符串
大梦三千秋·2021-06-22 04:33

LeetCode | 0039. Combination Sum组合总和【Python】

LeetCode0039.CombinationSum组合总和【Medium】【Python】【回溯】ProblemLeetCodeGivenasetofcandidatenumbers(candidates
Wonz·2021-06-22 01:58

CombinationSum 问题

组合求和问题输入：一个无序数组，一个目标和输出：数组中目标和的组合要求：结果中不含重复组合用例：[2,3,6,7],7===>[[7][2,2,3]]分析这个也没啥分析的。从一头开始一个个加进去，看还剩多少，再加。直到剩的为0或者小于0为止。思路回溯法。关键在于回溯。再加上迭代。就ok代码packageday_7;//这是要写一个迭代。//或者是用dfs（DeepFirstSearch)//无奈迭
MikeShine·2021-06-21 22:37

LeetCode #40 Combination Sum II 组合总和 II

40CombinationSumII组合总和IIDescription:Givenacollectionofcandidatenumbers(candidates)andatargetnumber(target
air_melt·2021-06-20 00:40

Combinations

写多了果然是比价顺手了。但这题很简单呀classSolution(object):defcombine(self,n,k):""":typen:int:typek:int:rtype:List[List[int]]"""res=[]self.dfs(0,n,k,1,res,[])returnresdefdfs(self,count,n,k,start,res,temp):ifcount==k:re
April63·2021-06-19 19:21

LeetCode #39 Combination Sum 组合总和

39CombinationSum组合总和Description:Givenasetofcandidatenumbers(candidates)(withoutduplicates)andatargetnumber
air_melt·2021-06-18 21:30

Factor Combinations

DescriptionNumberscanberegardedasproductofitsfactors.Forexample,8=2x2x2;=2x4.Writeafunctionthattakesanintegernandreturnallpossiblecombinationsofitsfactors.Note
Nancyberry·2021-06-14 07:09

es 查询 | bool query

官网：Aquerythatmatchesdocumentsmatchingbooleancombinationsofotherqueries简单的说就是几种must，filter，should，must_not
末日声箫·2021-06-14 02:19

组合总和

Algorithm39.CombinationSumDescriptionGivenanarrayofdistinctintegerscandidatesandatargetintegertarget,
shiguangfeixu·2021-06-13 04:05

leetcode几个可以用回溯的小题er

以深度优先（dfs）方式搜索解空间1.括号生成Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
Ray_Xuan·2021-06-13 00:29

What is the Julia function to count combinations (n choose k)?——计算组合的数量

个的组合数量：julia>binomial(2,1)2julia>binomial(3,2)3具体的组合明细：julia>usingCombinatoricsjulia>collect(combinations
盖鍋·2021-06-08 03:56

Week 7 同源重组-CRISPR

Lecture13:CRISPRSegment1:IntroductiontoCRISPRSegment2:ReviewofHomologousRecombinationSegment3:真核生物中的同源重组
英天·2021-06-03 22:57

Generate Parentheses

Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample,givenn
lmem·2021-05-17 21:15

leetcode 39. Combination Sum

Givenasetofcandidatenumbers(C)(withoutduplicates)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes.Note
哲哲哥·2021-05-15 03:20

8.9 颜色搭配推荐

youmayneedsomecolorinspiration.YoucancheckoutAdobeColorCC(color.adobe.com)andFlatUIColorPicker(flatuicolorpicker.com).You'llfindalotofcolorcombinationsfordesigningyourapp
AlxRooooose·2021-05-14 23:18

39. Combination Sum

Givenasetofcandidatenumbers(C)(withoutduplicates)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes.Note
juexin·2021-05-14 13:12

Combination Sum

超过时间的递归做法classSolution(object):defcombinationSum(self,candidates,target):""":typecandidates:List[int]
April63·2021-05-12 23:24

LeetCode 93 Restore IP Addresses

LeetCode93RestoreIPAddressesGivenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddresscombinations.Forexample
ShuiLocked·2021-05-08 12:11

Leetcode17-Letter Combinations of a Phone Number(Python3)

17.LetterCombinationsofaPhoneNumberGivenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
LdpcII·2021-05-04 14:05

LeetCode #216 Combination Sum III 组合总和 III

216CombinationSumIII组合总和IIIDescription:Findallpossiblecombinationsofknumbersthatadduptoanumbern,giventhatonlynumbersfrom1to9canbeusedandeachcombinationshouldbeauniquesetofnumbers.Note
air_melt·2021-05-04 12:24

216. Combination Sum III

Findallpossiblecombinationsofknumbersthatadduptoanumbern,giventhatonlynumbersfrom1to9canbeusedandeachcombinationshouldbeauniquesetofnumbers.Example1
Jeanz·2021-05-01 17:11

40. Combination Sum II

题目分析找出一个数组若干数的和等于target的所有可行解，每个元素只能使用一次+回溯法代码classSolution{publicList>combinationSum2(int[]candidates
衣介书生·2021-04-29 03:45

Letter Combinations of a Phone Number

题目Givenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
时光杂货店·2021-04-27 18:23

Letter Combinations of a Phone Number

文章作者：Tyan博客：noahsnail.com|CSDN|1.DescriptionLetterCombinationsofaPhoneNumber2.SolutionclassSolution{public
SnailTyan·2021-04-26 21:09

Sample Combinations of Errors 2

根据我们已经学过的错误类型，让我们重现以上事例究竟发生了什么。克劳迪的根本性错误是他的“我的更好”态度，这种态度导致他忽视了他的候选人和政党并非完美以及对手也存在些许优点的可能性。换言之，这使他高估了自己所支持的事物而低估了自己所反对的事物。因此，在他说出候选人和政党之时，他则犯下了过度普遍化的错误。之后，当尼尔指出其错误之时（某些人迟早会指出他的错误），克劳迪则通过保住脸面的方式而去努力缓解尴尬
梁梦婷·2021-04-26 02:05

LeetCode每日一题：combination sum ii

问题描述Givenacollectionofcandidatenumbers(C)andatargetnumber(T),findalluniquecombinationsinCwherethecandidatenumberssumstoT.EachnumberinCmayonlybeusedonceinthecombination.Note
yoshino·2021-04-22 23:37

2021-04-18

力扣非常好的题解publicstaticListletterCombinations(Stringdigits){if(digit
小染·2021-04-19 21:48

数字的排列

Combinationhttps://leetcode.com/problems/combinations/整形n，给定一个k，求n个数字里面k个组合res记录最终结果，out记录单次结果(res是out
瞬铭·2021-04-17 18:39

(24)Go递归求组合类问题

varm[]string=[]string{"abc","def","ghi","jkl","mno","pqrs","tuv","wxyz",}//时间复杂度为3^n=O(2^n)funcletterCombinations
哥斯拉啊啊啊哦·2021-04-13 23:38

LeetCode刷题day040 (Jieky)

LeetCode第40题CombinationSumII/*Givenacollectionofcandidatenumbers(candidates)andatargetnumber(target),
小哥哥咯·2021-04-12 10:15

从易到难解析-深度优先搜索DFS-以及常见面试题

DFSLeetCode71.子集LeetCode90.子集ll排列类组合DFSLeetCode46.全排列LeetCode47.全排列llTSP问题DFS高频面试题剑指offer38.字符串的不同排列数字组合CombinationSumk
BudingCode·2021-03-14 13:26

[Day11]22. Generate Parentheses

Lateagain.MEDIUMlevelagain.Butthisoneisinteresting.DESCRIPTION:Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
Shira0905·2021-03-11 19:25

0214leetcode刷题5道

示例：解答：classSolution:defcombinationSum2(self,candidates:List[int],target
嘟嘟嘟小叶·2021-02-14 21:18

0213leetcode刷题5道python

示例：解答：classSolution:defcombinationSum(self,candidates:List[int],target:int)->List[List[int]]:candidat
嘟嘟嘟小叶·2021-02-13 20:06

LeetCode刷题day022 (Jieky)

LeetCode第22题/*Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
小哥哥咯·2021-01-07 23:44

leetcode40 组合数总和2

classSolution{List>res=newArrayList>combinationSum2(int[]candidates,inttarget){vis=newboolean[candidates.length
无神论教大祭司·2021-01-05 08:35

LeetCode刷题day017 (Jieky)

LeetCode第17题/*Givenastringcontainingdigitsfrom2-9inclusive,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
小哥哥咯·2020-12-27 21:26

Leetcode 17. 电话号码的字母组合

思路1：实质上就是一颗树，注意回溯条件classSolution{publicListletterCombinations(Stringdigits){Listcombinations=newArrayList
weixin_45367847·2020-12-27 15:05

2.算法-递归和回溯

回溯经典例题https://zhuanlan.zhihu.com/p/11292689139.组合总和defcombinationSum(self,candidates:List[int],target
做一只有趣的芦苇·2020-12-26 15:45

Scala基础02-数组函数总结以及案例(130个)

函数大全一、元素操作1、+:2、:+3、combinations4、distinct5、drop6、dropRight7、dropWhile8、max9、min10、maxBy11、minBy12、padTo13
xiaoxaoyu·2020-12-24 18:06

Letter Combinations of a Phone Number

classSolution{publicListletterCombinations(Stringdigits){Mapphone=newHashMap();phone.put('2',"abc");phone.put
zhfang·2020-12-24 10:23

虎牙爬虫 并保存到 同级目录 English_name_image文件夹下

fromitertoolsimportcombinationsimportstringfromurllib.requestimporturlretrieveimportrequestsfromlxmlimportetreel
报李皆知待影几懂·2020-12-11 14:09

combinations（）函数（python）

itertools.combinations(iterable,r)从可迭代对象iterable中选取r个单位进行组合，并返回一个生成元组的迭代器定义defcombinations(iterable,r
zx841·2020-11-19 19:51

枚举验证6174（python程序设计实验8）

枚举验证6174描述：任意各位数字不同的4位数，使用4个数能组成的最大数减去最小数，对得到的差进行重复操作，最多不过7次会得到61741.combinations函数()简介combinations（）
zx841·2020-11-17 14:14

216. Combination Sum III (M)

CombinationSumIIIMedium151961AddtoListShareFindallvalidcombinationsofknumbersthatsumuptonsuchthatthefollowingconditionsaretrue
Ysgc·2020-11-16 09:49

LeetCode17、电话号码的字母组合

classSolution{publicListletterCombinations(Stringdigits){HashMapmap=newHashMap());}publicListgetL
雨夜※繁华·2020-09-17 03:46

领口要求真的高/三数之和 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 = 0 ？找出所有满足条件且不重复的三元组。 注意：答

importitertoolsfromfunctoolsimportreducel=[]l1=[-1,0,1,2,-1,-4]m=list(itertools.combinations(l1,3))#为了拿出所有的三元组数学组合
元编程·2020-09-16 23:37

php全组合代码实现

php全组合代码实现$a=['a','b','c'];$b=get_combinations($a);echojson_encode($b);functionget_combinations($str,
小协·2020-09-16 12:51

C++中const和指针*的组合问题

首先是在Ubuntu14.04.1下用gcc4.8.4编译运行的结果，编译器报错信息都附加在对应语句后面的注释里/**Note:Testforthecombinationsofconstand**Laste
Aslania·2020-09-16 10:42

[LeetCode]Generate Parentheses

题目要求如下：Givennpairsofparentheses,writeafunctiontogenerateallcombinationsofwell-formedparentheses.Forexample
zhouworld16·2020-09-16 06:01
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