Calm微笑

E - ETime Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionYou are given a car odometer which displays the miles traveled as an inte

1006 - Hex-a-bonacci   PDF (English)StatisticsForumTime Limit: 0.5 second(s)Memory Limit: 32 MBGiven a code (not optimized), and necessary inputs, you h

A. Ilya and Diplomastime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputSoon a school Olympiad in Informatics w

1874: 蛤玮学计网Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 1124  Solved: 176SubmitStatusWeb BoardDescription蛤玮最近学习了关于ip的知识,于是他迫不及待的想把新知识传授给她的妹子.蛤玮的妹子随便写下了一个字符串,蛤玮现在要告诉她这个字符串是不是一个合法的

1878: 蛤玮准备礼物Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 850  Solved: 138SubmitStatusWeb BoardDescription蛤玮的妹子要过生日了,经过千挑万选,蛤玮决定给妹子买一盒水彩铅笔,然而卖多少个才合适呢.机智的蛤玮决定数一数今天是妹子出生

1913: 小火山的计算能力Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 443  Solved: 106SubmitStatusWeb BoardDescription别人说小火山的计算能力不行，小火山很生气，于是他想证明自己，现在有一个表达式，他想计算出来。Input首先是一个t（1Ou

B. Little Robber Girl's Zootime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLittle Robber Girl likes to sca

A. Free Ice Creamtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputAfter their adventure with the magic mirr

C. Thortime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputThor is getting used to the Earth. As a gift Loki g

J - HDD is Outdated TechnologyTime Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionHDD hard drives group data by sectors. All files

K - Spongebob and JokeTime Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionWhile Patrick was gone shopping, Spongebob decided to pla

L - Kefa and CompanyTime Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionKefa wants to celebrate his first big salary by going to re

E - New Year TransportationTime Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit Status Practice CodeForces 500AAppoint description: System Crawler  (Jul

I - Sereja and SuffixesTime Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionSereja has an array a, consisting of n integers a1, a2

B. Text Document Analysistime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputModern text editors usually show s

有N条鱼每条鱼的位置及大小均不同，他们沿着X轴游动，有的向左，有的向右。游动的速度是一样的，两条鱼相遇大鱼会吃掉小鱼。从左到右给出每条鱼的大小和游动的方向（0表示向左，1表示向右）。问足够长的时间之后，能剩下多少条鱼？Input第1行：1个数N，表示鱼的数量(1 <= N <= 100000)。第2 - N + 1行：每行两个数A[i], B[i]，中间用空格分隔，分

D. Green and Black Teatime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputInnokentiy likes tea very much and to

C. Tramtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputThe tram in Berland goes along a straight line from

B. Decodingtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputPolycarp is mad about coding, that is why he wri

B. Hongcow Solves A Puzzletime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputHongcow likes solving puzzles.

Queue In the Main Berland Bank n people stand in a queue at the cashier, everyone knows his/her height hi, and the heights of the other people in the queue. Each of them keeps in mind number a

Increase and DecreasePolycarpus has an array, consisting of n integers a1, a2, ..., an. Polycarpus likes it when numbers in an array match. That's why he wants the array to have as many equal nu

Buggy Sorting Little boy Valera studies an algorithm of sorting an integer array. After studying the theory, he went on to the practical tasks. As a result, he wrote a program that sorts an arra

Hopscotch So nearly half of the winter is over and Maria is dreaming about summer. She's fed up with skates and sleds, she was dreaming about Hopscotch all night long. It's a very popular childr

A. DZY Loves Chessboardtime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputDZY loves chessboard, and he enjoys

B. Paradetime limit per test1 secondmemory limit per test256 megabytesinputstandard inputoutputstandard outputVery soon there will be a parade of victory over a

1414 - February 29   PDF (English)StatisticsForumTime Limit: 1 second(s)Memory Limit: 32 MBIt is 2012, and it's a leap year. So there is a "February 29"

DZY Loves PartitionTime Limit: 4000/2000 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1430    Accepted Submission(s): 539Problem DescriptionDZY loves

1791: 旋转矩阵Time Limit: 1 Sec  Memory Limit: 128 MBSubmit: 284  Solved: 123SubmitStatusWeb BoardDescription给出一个矩阵，输出顺时针旋转90度后的矩阵。Input单实例测试。输入第一行是一个整数n(0 Output

I - Problems for RoundTime Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionThere are n problems prepared for the next Codeforces rou

A. Life Without Zerostime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputCan you imagine our life if we remove

H - Bear and GameTime Limit:2000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionBear Limak likes watching sports on TV. He is going to watch a

D - Beautiful PaintingsTime Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionThere are n pictures delivered for the new exhibition. T

C - JoysticksTime Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionFriends are going to play console. They have two joysticks and onl

K - HolidaysTime Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64uSubmit StatusDescriptionOn the planet Mars a year lasts exactly n days (there are no leap y

Reorder the Books Time Limit : 4000/2000ms (Java/Other)   Memory Limit : 131072/131072K (Java/Other)Total Submission(s) : 1   Accepted Submission(s) : 1Problem Descriptiondxy has a collection

Eddy's 洗牌问题 Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other)Total Submission(s) : 1   Accepted Submission(s) : 1Problem DescriptionEddy是个ACMer,他不仅喜欢做ACM题,而且对于纸牌

Candy Sharing Game Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other)Total Submission(s) : 2   Accepted Submission(s) : 1Problem DescriptionA number of students s

士兵队列训练问题Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5441    Accepted Submission(s): 2508Problem Description某部队进行新兵队列训练，将新兵从一开始按顺

Convert QWERTY to DvorakTime Limit: 2 Seconds      Memory Limit: 65536 KB Edward, a poor copy typist, is a user of the Dvorak Layout. But now he has only a QWERTY Keyboard with a brokenCap