直播带货源码，LintCode大小写转换直接利用C++中的tolower（大写转小写）函数。 classSolution{public:  /**   *@paramstr:theinputstring   *@return:Thelowercasestring   */  stringtoLowerCase(string&str){    //Writeyour

直播平台搭建源码，LintCode大小写转换一、直接利用C++中的tolower（大写转小写）函数。 classSolution{public:  /**   *@paramstr:theinputstring   *@return:Thelowercasestring   */  stringtoLowerCase(string&str){    //Wri

Thecodebaseversionisanintegerstartfrom1ton.Oneday,someonecommittedabadversioninthecodecase,soitcausedthisversionandthefollowingve

GivennpiecesofwoodwithlengthL[i](integerarray).Cutthemintosmallpiecestoguaranteeyoucouldhaveequalormorethankpieceswiththesameleng

Determinethenumberofbitsrequiredtoflipifyouwanttoconvertintegerntointegerm.ExampleGivenn=31(11111),m=14(01110),return2.NoteBothn

UsingO(1)timetocheckwhetheranintegernisapowerof2.ExampleForn=4,returntrue;Forn=5,returnfalse;ChallengeO(1)time思路：如果n是2的幂，则n的二进

Arobotislocatedatthetop-leftcornerofamxngrid(marked‘Start’inthediagrambelow).Therobotcanonlymoveeitherdownorrightatanypointint

15:00StartWriteanalgorithmwhichcomputesthenumberoftrailingzerosinnfactorial.Example11!=39916800,sotheoutshouldbe2ChallengeO(logN)time

Giventwo32-bitnumbers,NandM,andtwobitpositions,iandj.WriteamethodtosetallbitsbetweeniandjinNequaltoM(eg,Mbecomesasubstring

Calculatethea^b%bwherea,bandnareall32bitintegers.ExampleFor231%3=2For1001000%1000=0ChallengeO(logn)思路参见我的博客​​幂模运算​​cla

Designanalgorithmandwritecodetoserializeanddeserializeabinarytree.Writingthetreetoafileiscalled‘serialization’andreadingbackfromthe

Then-queenspuzzleistheproblemofplacingnqueensonann×nchessboardsuchthatnotwoqueensattackeachother.Givenanintegern,returnalldistincts

Givenalistofnumbers,returnallpossiblepermutations.ChallengeDoitwithoutrecursion.1.递归classSolution{public:/***@paramnums:Alistofi

Givenasetofdistinctintegers,returnallpossiblesubsets.ChallengeCanyoudoitinbothrecursivelyanditeratively?1.18sclassSolution{public:/**

Givenalistofnumberswithduplicatenumberinit.Findalluniquepermutations.可以见我的博文​​全排列实现​​classSolution{public:/***@paramnu

Givenalistofnumbersthatmayhasduplicatenumbers,returnallpossiblesubsets1.先排序；再按求Subsets一样的做法，只是添加前检查是否已经存在。耗时171mscla

Givenanintegerarray,findasubarraywithsumclosesttozero.Returntheindexesofthefirstnumberandlastnumber.ExampleGiven[-3,1,1,-3,5],retur

Implementintsqrt(intx).Computeandreturnthesquarerootofx.Examplesqrt(3)=1sqrt(4)=2sqrt(5)=2sqrt(10)=3ChallengeO(log(x))求非线性方程的解可以

省流：1.w3school编程教程2.stackoverflowbug搜索3.tutorialspoint教程网站4.karan/Projects适合初学者的小项目5.程序员客栈程序员自由工作平台6.LintCode领