A.OathoftheNight'sWatchtimelimitpertest：2secondsmemorylimitpertest：256megabytesinput：standardinputoutput：standardoutput"Nightgathers,andnowmywatchbegins.Itshall...

B.CodeFor1timelimitpertest:2secondsmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputJonfoughtbravelytorescuethewildlingswhowereattackedbyt...

A.CrazyComputertimelimitpertest:2secondsmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputZStheCoderiscodingonacrazycomputer.Ifyoudon'ttype...

B.AnatolyandCockroachestimelimitpertest:1secondmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputAnatolylivesintheuniversitydormasmanyother...

A.MeetingofOldFriendstimelimitpertest：1secondmemorylimitpertest：256megabytesinput：standardinputoutput：standardoutputTodayanoutstandingeventisgoingtohappeninthef...

C.MemoryandDe-Evolutiontimelimitpertest:2secondsmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputMemoryisnowinterestedinthede-evolutionofo...

B.MemoryandTridenttimelimitpertest:2secondsmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputMemoryisperformingawalkonthetwo-dimensionalpla...

A.LettersCyclicShifttimelimitpertest:1secondmemorylimitpertest:256megabytesinput:standardinputoutput:standardoutputYouaregivenanon-emptystringsconsistingoflower...

A.InnaandChooseOptionstimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputTherealwaysissomethingtochoosefrom!Andnow,inste...

A.Cookiestimelimitpertest2secondsmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputOlgacametovisitthetwinsAnnaandMariaandsawthattheyhavemanyco...

A.Squatstimelimitpertest1secondmemorylimitpertest256megabytesinputstandardinputoutputstandardoutputPashahasmanyhamstersandhemakesthemworkout.Today,nhamsters(nis...

Shaasshasnbooks.Hewantstomakeabookshelfforallhisbooks.Hewantsthebookshelf'sdimensionstobeassmallaspossible.Thethicknessofthei-thbookistianditspages'widthisequal...

ProblemA(CodeforcesRound 689A):题意：　　给一个手势，问这个手势是否是唯一。 思路：　　暴力，模拟将这个手势上下左右移动一次看是否还在键盘上即可。 代码：　　1#include<cmath>2#include<cstdio>3#incl...

Problem_A(593A):题意：　　给n个单词，每个单词由小写字母组成，且长度<=1000.　　组成一篇文章的要求是：　　　　所有单词所用字母<=2　　　　即最多只能有两个不同的字母。　　求一篇文章的最长长度。 思路：　　首先注意到单词都是由小写字母组成，小写字母只有26个，所以可以转换一下...

Problem_A(592A):题意：　　在一个8*8的棋盘上有黑白两种棋子，'W'代表白色，'B'代表黑色。　　玩家A执白子，先走。白子只能向上走，黑子只能向下走。如果有障碍物则不能走，比如白色的上方有一个黑子，那么白子不能走。　　谁先走到边界谁就赢了。求解谁会赢 思路：　　白子只能往上走，黑子只能往下走。...