DescriptionTherepetitionnumberofastringisdefinedasthemaximumnumberRsuchthatthestringcanbepartitionedintoRsameconsecutivesubstrings.Forexample,therepetitionnumberof"ababab"is3and"ababa"is1.Givenastringcontaininglowercaseletters,youaretofindasubstringofitwithmaximumrepetitionnumber.InputTheinputconsistsofmultipletestcases.Eachtestcasecontainsexactlyoneline,whichgivesanon-emptystringconsisti...
ProblemDescription035nowfacedatoughproblem,hisenglishteachergiveshimastring,whichconsistswithnlowercaseletter,hemustfigureouthowmanysubstringsappearatleasttwice,moreover,suchapearancescannotoverlapeachother.Takeaaaaasanexample.”a”apearsfourtimes,”aa”apearstwotimeswithoutoverlaping.however,aaacan’tapearmorethanonetimewithoutoverlaping.sincewecanget“aaa”from[0-2](Thepositionofstringbegins...
Description给定一棵n个点的带权树,求树上最长的异或和路径InputTheinputcontainsseveraltestcases.Thefirstlineofeachtestcasecontainsanintegern(1<=n<=100000),Thefollowingn-1lineseachcontainsthreeintegersu(0<=u<n),v(0<=v<n),w(0<=w<2^31),whichmeansthereisanedgebetweennodeuandvoflengthw.OutputForeachtestcaseoutputthexor-lengthofthexor-longestpath.SampleInput4123234246Samp...
Hamedhasrecentlyfoundastringtandsuddenlybecamequitefondofit.Hespentseveraldaystryingtofindalloccurrencesoftinotherstringshehad.Finallyhebecametiredandstartedthinkingaboutthefollowingproblem.Givenastringshowmanywaysaretheretoextractk ≥ 1non-overlappingsubstringsfromitsuchthateachofthemcontainsstringtasasubstring?Moreformally,youneedtocalculatethenumberofwaystochoosetwosequencesa1, a2, ......
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