IfyouareafanofHarryPotter,youwouldknowtheworldofmagichasitsowncurrencysystem--asHagridexplainedittoHarry,"SeventeensilverSicklestoaGalleonandtwenty-nineKnutstoa...

Stackisoneofthemostfundamentaldatastructures,whichisbasedontheprincipleofLastInFirstOut(LIFO).ThebasicoperationsincludePush(insertinganelementontothetopposition...

Behindthescenesinthecomputer'smemory,colorisalwaystalkedaboutasaseriesof24bitsofinformationforeachpixel.Inanimage,thecolorwiththelargestproportionalareaiscalled...

Givenanon-emptytreewithroot R,andwithweight W​i​​ assignedtoeachtreenode T​i​​.The weightofapathfrom R to L isdefin...

Giventwostrings S​1​​ and S​2​​, S=S​1​​−S​2​​ isdefinedtobetheremainingstringaftertakingallthecharactersin S​2​​ from&...

Thetaskissimple:givenanypositiveinteger N,youaresupposedtocountthetotalnumberof1'sinthedecimalformoftheintegersfrom1to N.Forexample,given N ...

Thetaskisreallysimple:given N exitsonahighwaywhichformsasimplecycle,youaresupposedtotelltheshortestdistancebetweenanypairofexits.InputSpecification:Ea...

Evaistryingtomakeherowncolorstripeoutofagivenone.Shewouldliketokeeponlyherfavoritecolorsinherfavoriteorderbycuttingoffthoseunwantedpiecesandsewingtheremainingpa...

Shufflingisaprocedureusedtorandomizeadeckofplayingcards.Becausestandardshufflingtechniquesareseenasweak,andinordertoavoid"insidejobs"whereemployeescollaboratewi...

BeinguniqueissoimportanttopeopleonMarsthateventheirlotteryisdesignedinauniqueway.Theruleofwinningissimple:onebetsonanumberchosenfrom[1].Thefirstonewhobetsonauni...

Givenacollectionofnumbersegments,youaresupposedtorecoverthesmallestnumberfromthem.Forexample,given{32,321,3214,0229,87},wecanrecovermanynumberssuchlike32-321-32...

ToprepareforPAT,thejudgesometimeshastogeneraterandompasswordsfortheusers.Theproblemisthattherearealwayssomeconfusingpasswordssinceitishardtodistinguish 1&n...

Onewaythatthepolicefindstheheadofagangistocheckpeople'sphonecalls.Ifthereisaphonecallbetween A and B,wesaythat A and B isrela...

Givenanystringof N (≥)characters,youareaskedtoformthecharactersintotheshapeof U.Forexample, helloworld canbeprintedas:hdellrlowoThat...

Atraveler'smapgivesthedistancesbetweencitiesalongthehighways,togetherwiththecostofeachhighway.Nowyouaresupposedtowriteaprogramtohelpatravelertodecidetheshortest...