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Combinations
LeetCode 39. Combination Sum
10-13LeetCode39.
CombinationS
um
CombinationS
umDescriptionGivenasetofcandidatenumbers(C)(withoutduplicates
_kkk
·
2018-01-10 21:20
leetcode题目例题解析(十三)
leetcode题目例题解析(十三)Letter
Combinations
ofaPhoneNumber题目描述:Givenadigitstring,returnallpossibleletter
combinations
thatthenumbercouldrepresent.Amappingofdigittoletters
catik
·
2017-12-28 20:22
课程作业
生成括号
Givennpairsofparentheses,writeafunctiontogenerateall
combinations
ofwell-formedparentheses.Forexample,givenn
jianguotang
·
2017-12-26 16:52
leetcode
Letter
Combinations
of a Phone Number
Givenadigitstring,returnallpossibleletter
combinations
thatthenumbercouldrepresent.Amappingofdigittoletters
jianguotang
·
2017-12-26 11:36
leetcode
Letter
Combinations
of a Phone Number
Givenadigitstring,returnallpossibleletter
combinations
thatthenumbercouldrepresent.Amappingofdigittoletters
jianguotang
·
2017-12-26 00:33
leetcode
数据结构与算法-DFS/回溯
基本思想类同于:1.图的深度优先搜索2.二叉树的后序遍历分支限界法:广度优先搜索思想类同于:图的广度优先遍历二叉树的层序遍历1.leetcode39.
CombinationS
um题目描述:给一个数组nums
sylvainwang
·
2017-12-17 14:57
leetcode 518. Coin Change 2 类似背包问题 + 很简单的动态规划DP解决
Youaregivencoinsofdifferentdenominationsandatotalamountofmoney.Writeafunctiontocomputethenumberof
combinations
thatmakeupthatamount.Youmayassumethatyouhaveinfinitenumberofeachkindofcoin.Note
JackZhangNJU
·
2017-12-16 16:54
leetcode
For
Java
需要好好想一下的题目
DP动态规划
leetcode
For
C++
6.29 - medium总结3
40.
CombinationS
umII:就是在选择是否加入当前值的时候要注意,如果这个值不是循环的开头,而且这个值等于前一个值,则跳过当前值,比如说对于candidates[i]in1,1,2,6,那么到第二
健时总向乱中忙
·
2017-12-08 07:55
216. Combination Sum III
216.
CombinationS
umIIITotalAccepted:38518TotalSubmissions:101539Difficulty:MediumFindallpossible
combinations
ofknumbersthatadduptoanumbern
wkhuahuo
·
2017-12-03 14:43
python实现n个数中选出m个数
#请写程序,在输入M,X,Y,P,Q后自动给出所有可能的合法排列fromitertoolsimport
combinations
####第一步,题目给的数据输入str=input()m=int(str.s
kangyucheng
·
2017-12-01 22:57
自学
软件工程师修炼日记
leetcode题目例题解析(十一)
leetcode题目例题解析(十一)
Combinations
题目描述:Giventwointegersnandk,returnallpossible
combinations
ofknumbersoutof1
catik
·
2017-11-30 20:30
课程作业
026Thought Icons and Colors-TheBrain提示
ThoughtIconsandColorsThoughtIconsandColorscanbeusedtovisuallydistinguishimportantThoughts.Thoughttypesletyousetupicon,color,andlabel
combinations
thatyoucanquicklyassigntoanumber
菜五
·
2017-11-27 06:52
Leetcode -
Combinations
Paste_Image.pngMycode:importjava.util.ArrayList;importjava.util.List;publicclassSolution{publicList>combine(intn,intk){ArrayList>result=newArrayList>();if(nn)returnresult;ArrayListsample=newArrayList(
Richardo92
·
2017-11-27 03:00
Python爬取双色球数据进行分析
#-*-coding:utf-8-*-importrequests,bs4importos,timeimportoperatorfromitertoolsimport
combinations
,permutatio
DataCareer
·
2017-11-09 15:05
Python
数据分析
LeetCode 第17题:Letter
Combinations
of a Phone Number
回溯法进行的暴力解法:classSolution{publicListletter
Combinations
(Stringdigits){String[]table=newString[]{"","","
范培华
·
2017-10-30 16:51
算法与数据结构
[Leetcode][python]
Combinations
/组合
题目大意求在1到n个数中挑选k个数的所有的组合类型。解题思路DFS(回溯法)代码DFS和排列蛮像的,只不过到了k个数就停止递归了classSolution(object):defcombine(self,n,k):""":typen:int:typek:int:rtype:List[List[int]]"""defdfs(start,valuelist):ifself.count==k:ret.a
Rude3Knife
·
2017-10-20 01:33
【Leetcode题解】
1404-Digital Deletions
Digitaldeletionsisatwo-playergame.Theruleofthegameisasfollowing.Beginbywritingdownastringofdigits(numbers)that'saslongorasshortasyoulike.Thedigitscanbe0,1,2,3,4,5,6,7,8,9andappearinany
combinations
that
besti_kuroko
·
2017-10-17 14:54
leetcode--40. Combination Sum II
Givenacollectionofcandidatenumbers(C)andatargetnumber(T),findallunique
combinations
inCwherethecandidatenumberssumstoT.EachnumberinCmayonlybeusedonceinthecombination.Note
糊糊姨
·
2017-10-15 18:54
Leetcode
array
backtrace
Leetcode
leetcode--39. Combination Sum
Givenasetofcandidatenumbers(C)(withoutduplicates)andatargetnumber(T),findallunique
combinations
inCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes.Note
糊糊姨
·
2017-10-15 18:03
Leetcode
array
backtrace
Leetcode
Python实现的排列组合计算操作示例
fromscipy.specialimportcomb,perm>>perm(3,2)6.0>>comb(3,2)3.02.调用itertools获取排列组合的全部情况数>>fromitertoolsimport
combinations
Inside_Zhang
·
2017-10-13 12:21
LeetCode 93 Restore IP Addresses
Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddress
combinations
.Forexample
努力的C
·
2017-10-11 22:06
IP
回溯
93. Restore IP Addresses
Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddress
combinations
.Forexample
sherwin29
·
2017-09-30 10:47
Combinations
dp...这个题目基本操作classSolution{private:intn;public:vector>combine(intn,intk){//vectorv={1,2,3};this->n=n;returncomb(1,k);}vector>comb(inti,intk){vector>res;if(k==0||(n-i+1)(1,j));returnres;}if(n-i+1==k){v
小枪leetcode日记
·
2017-09-27 00:59
Backtracking
总结:2.pic.jpgExample:17Letter
Combinations
ofaPhoneNumber22GenerateParentheses93RestoreIPAddresses:http:
sherwin29
·
2017-09-26 10:07
[Leetcode][python]Combination Sum II/组合总和 II
+注意点:所有数字都是正数组合中的数字要按照从小到大的顺序原数组中的数字只可以出现一次结果集中不能够有重复的组合解题思路这道题和
CombinationS
um极其相似,主要的区别是
CombinationS
um
Rude3Knife
·
2017-09-21 07:22
【Leetcode题解】
LeetCode 39. Combination Sum
Givenasetofcandidatenumbers(C)(withoutduplicates)andatargetnumber(T),findallunique
combinations
inCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes.Note
关玮琳linSir
·
2017-09-14 16:55
difficult with #每日一词#
Althoughdialleldesignsaredifficultwithforesttrees,becauseoftheproblemsofquicklycompletingallpossible
combinations
ofcontrolcrosses
董八七
·
2017-08-28 10:41
22. Generate Parentheses
Givenadigitstring,returnallpossibleletter
combinations
thatthenumbercouldrepresent.Amappingofdigittoletters
sherwin29
·
2017-08-23 16:55
用python实现排列组合
1231,2,3,12,21,13,31,23,32123,132,213,231,312,321用代码实现,首先是不考虑顺序的:#选取2个对象importitertoolsprintlist(itertools.
combinations
destiny_python
·
2017-08-21 22:09
数据分析
python
[Leetcode][python]Letter
Combinations
of a Phone Number/电话号码的字母组合
解题思路DFS深度优先代码classSolution(object):defletter
Combinations
(self,digits):""":typedigits:str:rtype:List[str
Rude3Knife
·
2017-08-20 11:52
【Leetcode题解】
python 迭代器和生成器及例子
迭代器:itertor遍历可迭代对象内容的方式可迭代对象需要提供迭代器:实现__iter__、__next__itertools(python提供的一个包):permutations:排列
combinations
Aidon-东哥博客
·
2017-08-17 00:43
python
python
迭代器和生成器及例子
博弈——Digital Deletions
Digitaldeletionsisatwo-playergame.Theruleofthegameisasfollowing.Beginbywritingdownastringofdigits(numbers)that'saslongorasshortasyoulike.Thedigitscanbe0,1,2,3,4,5,6,7,8,9andappearinany
combinations
that
LSC_333
·
2017-08-11 14:50
博弈
小白笔记----------------------------------leetcode(22. Generate Parentheses )
Givennpairsofparentheses,writeafunctiontogenerateall
combinations
ofwell-formedparentheses.这道算法涉及到什么卡特兰数
Aaron92
·
2017-08-03 11:24
算法设计
Puzzle Games - Candy Drop!New Fun Match 3 Games
CandyFruitSpriteisabrandnewgamebringsamazingwayofmatch-3funpuzzleadventure,moredivine
combinations
andchallenginggamemodesbrimmingwithpurplecandy
旬日
·
2017-08-01 17:43
回溯题目/排列、组合、子集问题
总结:(1)回溯法一般只包含引用变量,不含临时变量(2)重复的数设置哈希表判断(3)这些类型的题目使用回溯时递归环节一般只有一层循环一、组合39.
CombinationS
um组合之和(没有重复的数,但是同一个数可以重复出现
LUCASYAN个
·
2017-07-29 18:34
leetcode216. Combination Sum III
题目要求Findallpossible
combinations
ofknumbersthatadduptoanumbern,giventhatonlynumbersfrom1to9canbeusedandeach
combinations
houldbeauniquesetofnumbers.Example1
raledong
·
2017-07-22 00:00
leetcode
java
backtracking
LeetCode#22* Generate Parentheses
Givennpairsofparentheses,writeafunctiontogenerateall
combinations
ofwell-formedparentheses.Forexample,givenn
Sly_461
·
2017-07-18 11:10
【LeetCode】
leetcode93. Restore IP Addresses
题目要求Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddress
combinations
.Forexample
raledong
·
2017-07-18 00:00
leetcode
java
iteration
Leetcode: subset![Amazon 电面原题]
唯一比较不同的是这里不像以前的
combinations
um有一个判断条件。比如说target减去目前已经塞进去的值的sum后还要判断iftarget
98Future
·
2017-07-14 15:31
Combinations
题目Giventwointegersnandk,returnallpossible
combinations
ofknumbersoutof1...n.Forexample,Ifn=4andk=2,asolutionis
persistent100
·
2017-07-05 23:54
Combinations
题目要求Giventwointegersnandk,returnallpossible
combinations
ofknumbersoutof1...n.Forexample,Ifn=4andk=2,asolutionis
raledong
·
2017-07-05 00:00
leetcode
java
backtracking
[LeetCode] Generate Parentheses
GenerateParenthesesGivennpairsofparentheses,writeafunctiontogenerateall
combinations
ofwell-formedparentheses.DFSTimeComplexityO
annielulu
·
2017-06-17 00:00
leetcode
LintCode
【LeetCode】38.Combination Sum
Description:Givenasetofcandidatenumbers(C)(withoutduplicates)andatargetnumber(T),findallunique
combinations
inCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftimes
Crystal_Destiny
·
2017-06-15 18:19
leetcode 216. Combination Sum III (DFS)
Findallpossible
combinations
of k numbersthatadduptoanumber n,giventhatonlynumbersfrom1to9canbeusedandeach
combinations
houldbeauniquesetofnumbers.Example1
a1025461748
·
2017-06-14 22:00
Letter
Combinations
of a Phone Number
原题Givenadigitstring,returnallpossibleletter
combinations
thatthenumbercouldrepresent.Amappingofdigittoletters
daigualu
·
2017-06-14 12:00
LeetCode
Queue
LeetCode 39. Combination Sum and LeetCode 40. Combination Sum II
【题目LeetCode39】Givenasetofcandidatenumbers(C)(withoutduplicates)andatargetnumber(T),findallunique
combinations
inCwherethecandidatenumberssumstoT.ThesamerepeatednumbermaybechosenfromCunlimitednumberoftim
chenshx_sysu
·
2017-06-12 14:00
递归
算法设计与分析(15) -- Generate Parentheses(难度:Medium)
算法设计与分析(15)题目:GenerateParentheses问题描述:Givennpairsofparentheses,writeafunctiontogenerateall
combinations
ofwell-formedparentheses.Forexample
alexlau8
·
2017-05-29 17:47
算法设计作业
第十周 动态规划 Combination Sum IV
Givenanintegerarraywithallpositivenumbersandnoduplicates,findthenumberofpossible
combinations
thatadduptoapositiveintegertarget.Example
不折腾就闹心
·
2017-05-18 08:30
算法
第十周 动态规划 Combination Sum IV
Givenanintegerarraywithallpositivenumbersandnoduplicates,findthenumberofpossible
combinations
thatadduptoapositiveintegertarget.Example
不折腾就闹心
·
2017-05-18 08:30
算法
LeetCode每日一题:恢复ip地址
问题描述Givenastringcontainingonlydigits,restoreitbyreturningallpossiblevalidIPaddress
combinations
.Forexample
yoshino
·
2017-05-15 10:44
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