Combinations

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

每日算法 - 组合（数学公式 -------- c(n,k)）

:n=4,k=2输出:[[2,4],[3,4],[2,3],[1,2],[1,3],[1,4],]来源：力扣（LeetCode）链接：https://leetcode-cn.com/problems/combinations
Longtermevolution·2020-07-15 18:52

Letter Combinations of a Phone Number

Givenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
exialym·2020-07-15 16:50

leetCode 77.Combinations (组合)

Giventwointegersnandk,returnallpossiblecombinationsofknumbersoutof1...n.Forexample,Ifn=4andk=2,asolutionis
xygy8860·2020-07-15 11:59

用py写一个关于斗牛各种牌型出现概率的程序

importrandomimportitertoolsclasspoker():definit(self):self.paiku=[1,2,3,4,5,6,7,8,9,10,10,10,10]*4defrun(self):res=[]s=list(itertools.combinations
weixin_42351283·2020-07-15 07:03

leetcode17+stringbuilder与递归

importjava.util.ArrayList;importjava.util.List;publicclassLetterCombinations_17{privatestaticfinalString
但见新人笑那闻旧人哭·2020-07-15 06:14

LeetCode-77 Combinations(组合)

LeetCode-77Combinations(组合)Giventwointegersnandk,returnallpossiblecombinationsofknumbersoutof1...n.Forexample
Yellow5A5·2020-07-15 00:52

[leet code] Combinations

Giventwointegersnandk,returnallpossiblecombinationsofknumbersoutof1...n.Forexample,Ifn=4andk=2,asolutionis
flowercha·2020-07-15 00:58

特征选择与特征抽取

DimensionalityReduction（降维）两种方法，但是这两个有相同点，也有不同点之处：1.概念：特征抽取（FeatureExtraction）:Creattingasubsetofnewfeaturesbycombinationsoftheexsitingfeatures
Michael_Shentu·2020-07-14 22:17

【LeetCode】77 组合 (C++)

原题地址：https://leetcode-cn.com/problems/combinations/submissions/题目描述：给定两个整数n和k，返回1...n中所有可能的k个数的组合。
rabbitsockx·2020-07-14 21:57

Leetcode-77_ Combinations(组合)-深搜解法-【C++】

77.CombinationsGiventwointegersnandk,returnallpossiblecombinationsofknumbersoutof1…n.Forexample,Ifn=4andk
广海_小疯疯丶·2020-07-14 18:02

leetcode练习题77.组合

示例:输入: n=4,k=2输出:[[2,4],[3,4],[2,3],[1,2],[1,3],[1,4],]链接：https://leetcode-cn.com/problems/combinations
m0_38134889·2020-07-14 15:15

m选n组合的两种算法（C语言实现）

原问题：Giventwointegersnandk,returnallpossiblecombinationsofknumbersoutof1...n.1.递归算法即首先选择n，然后递归地从剩下的1..
木木山水日月·2020-07-14 10:29

mixup: BEYOND EMPIRICAL RISK MINIMIZATION

本质上，mixup用样本对和标签对的凸组合(onconvexcombinationsofpairsofexampl
ellin_young·2020-07-14 10:22

[经典面试题]排列组合专题

.NextPermutation[LeetCode]46.Permutations[LeetCode]47.PermutationsIISTL系列之十全排列(百度迅雷笔试题)[LeetCode]77.Combinations
SunnyYoona·2020-07-14 06:03

1到2n这2n个数平均分成两份 abs(ai-bi)=k 求个数

Backtrackisstraighforward,welcomeotherbettersolutions:fromitertoolsimportcombinationsclassSolution
taoqick·2020-07-14 02:09

两个避孕套组合问题(Two-Condom Combinatorial Problem)

frommylifeasaquant&宽客人生Problem:Two(heterosexual)couplesdecidetohavegroupsexwitheachotherinallpossiblemale-femalecombinations.Theyhaveonlytwocondoms
魔剑小白·2020-07-13 20:39

Array Leetcode :Medium

216.CombinationSumIIIhttps://leetcode.com/problems/combination-sum-iii/classSolution{private:vector>res
Derren_Ang·2020-07-13 16:55

垃圾收集器总结

垃圾收集器总结各种收集器组合使用的参数Serial+CMS注意不能使用-XX:+UseConcMarkSweepGC-XX:+UseSerialGC，否则会报Conflictingcollectorcombinationsinoptionlist
tangyu_tyty·2020-07-13 15:10

Letter Combinations of a Phone Number

题解：此题比较简单，就是一个简单的全排列问题#include#include#includeusingnamespacestd;voidletterCombinations(vector&pos,stringdights
风儿--zsj·2020-07-13 14:12

Letter Combinations of a Phone Number

题目Givenadigitstring,returnallpossiblelettercombinationsthatthenumbercouldrepresent.Amappingofdigittoletters
BLUE_fdf9·2020-07-13 12:21

LeetCode刷题记录17-31——lzyhuster

https://blog.csdn.net/g11d111/article/details/76169861则本问题代码1：classSolution{mapm;public:vectorletterCombinations
lzyeic·2020-07-13 11:02

Leetcode：93. Restore IP Addresses(Week1, Medium)

解题方法：递归法、暴力求解法Leetcode93Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddresscombinations.Forexample
小威威__·2020-07-13 07:47

Leetcode - Combination Sum

importjava.util.ArrayList;importjava.util.Arrays;importjava.util.List;publicclassSolution{publicList>combinationSum
Richardo92·2020-07-13 00:11
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