小寒

Pseudoprime numbersTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 7396 Accepted: 3050DescriptionFermat's theorem states that for any prime number p and for any integer a > 1, ap

最少拦截系统Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 23798 Accepted Submission(s): 9333Problem Description某国为了防御敌国的导弹袭击,发展出一种导弹拦截系统.

Tian Ji -- The Horse RacingTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 20809 Accepted Submission(s): 6081Problem DescriptionHere

Climbing WormTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 13790 Accepted Submission(s): 9340Problem DescriptionAn inch worm is at

FatMouse' TradeTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 50683 Accepted Submission(s): 16959Problem DescriptionFatMouse prepare

Problem A: 简单计算Time Limit: 5 Sec Memory Limit: 128 MBSubmit: 65 Solved: 39[Submit][Status][Web Board]Description给出n个十进制的数，找出这n个数的二进制表示中1的个数最少的数。Input输入的第一行为一个正整数T（1≤T≤20）,代表测试数据组

Description在二维坐标轴内给出四个点，这四个点能否构成一个正方形。Input第一行包括一个整数：T（1≤T≤30），表明有T组测试数据。下面各行有8个整数：x1，y1，x2，y2，x3，y3，x4，y4（数据均在-1000,1000之间），以逆时针顺序给出四个点的坐标。Output对每个样例，如果是正方形，则单独在一行内输出YES，否则，输出N

A Mathematical CuriosityTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 28368    Accepted Submission(s): 9022Problem Description

Design T-ShirtTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6302    Accepted Submission(s): 2944Problem DescriptionSoon after

Train Problem ITime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 22420    Accepted Submission(s): 8481Problem DescriptionAs the ne

Candy Sharing GameTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3321    Accepted Submission(s): 2071Problem DescriptionA numbe

Flying to the MarsTime Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 12656 Accepted Submission(s): 4021Problem DescriptionIn the yea

今年暑假不ACTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 33668 Accepted Submission(s): 17905Problem Description“今年暑假不AC？”“是的。”“那你干什

Saving HDUTime Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 6322 Accepted Submission(s): 2920Problem Description话说上回讲到海东集团面临内外交困，公司的元老也

Raising Modulo NumbersTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 5343 Accepted: 3122DescriptionPeople are different. Some secretly read magazines full of interesting girls' pi

Prime NumberWrite a program which reads an integer n and prints the number of prime numbers which are less than or equal to n. A prime number is a natural number which has exactly two distinct nat

GCD and LCMWrite a program which computes the greatest common divisor (GCD) and the least common multiple (LCM) of given a and b (0 InputInput consists of several data sets. Each data set co

StripiesTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 13278 Accepted: 6255DescriptionOur chemical biologists have invented a new very useful form of life called stripies (in fact

Lake CountingTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 22854 Accepted: 11526DescriptionDue to recent rains, water has pooled in various places in Farmer John's field, which i

AntsTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 11415 Accepted: 5059DescriptionAn army of ants walk on a horizontal pole of length l cm, each with a constant speed of 1 cm/s. W

SumsetsTime Limit: 2000MS Memory Limit: 200000KTotal Submissions: 14323 Accepted: 5699DescriptionFarmer John commanded his cows to search for different sets of numbers that sum to a given nu

Cow BowlingTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 15199 Accepted: 10111DescriptionThe cows don't use actual bowling balls when they go bowling. They each take a number (in

Backward Digit SumsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 5001 Accepted: 2876DescriptionFJ and his cows enjoy playing a mental game. They write down the numbers from 1 to

悼念512汶川大地震遇难同胞——老人是真饿了Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 9355 Accepted Submission(s): 3859Problem Description时间：2008年5月1

Let the Balloon RiseTime Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 79774    Accepted Submission(s): 29991Problem DescriptionCon

历届试题 分糖果  时间限制：1.0s   内存限制：256.0MB    问题描述　　有n个小朋友围坐成一圈。老师给每个小朋友随机发偶数个糖果，然后进行下面的游戏：　　每个小朋友都把自己的糖果分一半给左手边的孩子。　　一轮分糖后，拥有奇数颗糖的孩子由老师补给1个糖果，从而变成偶数。　　反复进行这个游戏，直到所有小朋友的糖果数都相同为

一种排序时间限制：3000 ms  |  内存限制：65535 KB难度：3描述现在有很多长方形，每一个长方形都有一个编号，这个编号可以重复；还知道这个长方形的宽和长，编号、长、宽都是整数；现在要求按照一下方式排序（默认排序规则都是从小到大）；1.按照编号从小到大排序2.对于编号相等的长方形，按照长方形的长排序；3.如果编号和长都相同，按照长

分数加减法时间限制：3000 ms  |  内存限制：65535 KB难度：2描述 编写一个C程序，实现两个分数的加减法输入输入包含多行数据 每行数据是一个字符串，格式是"a/boc/d"。 其中a, b, c, d是一个0-9的整数。o是运算符"+"或者"-"。 数据以EOF结束 输入数据保证合法输出对于输入数据的每一行输出两个分数的运算结果。 注意结

Color Me LessTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 29983 Accepted: 14535DescriptionA color reduction is a mapping from a set of discrete colors

Speed LimitTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 16851 Accepted: 11810DescriptionBill and Ted are taking a road trip. But the odometer in their

字符串替换时间限制：3000 ms  |  内存限制：65535 KB难度：2描述 编写一个程序实现将字符串中的所有"you"替换成"we"输入输入包含多行数据 每行数据是一个字符串，长度不超过1000 数据以EOF结束输出对于输入的每一行，输出替换后的字符串样例输入you are what you do样例输出we are what we do

Gold CoinsTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 20796 Accepted: 13014DescriptionThe king pays his loyal knight in gold coins. On the first day o

THE DRUNK JAILERTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 22824 Accepted: 14385DescriptionA certain prison contains a long hall of n cells, each rig

无线网络覆盖时间限制：3000 ms  |  内存限制：65535 KB难度：3描述 我们的乐乐同学对于网络可算得上是情有独钟，他有一个计划，那就是用无线网覆盖郑州大学。现在学校给了他一个机会，因此他要购买很多的无线路由。现在他正在部署某条大道的网络，而学校只允许把他的无线路由器放在路的正中间。我们默认这条大道是笔直的并且它在任何地方的宽度都一样。并且所有的路由器的覆盖面积

Coin Game时间限制：1000 ms  |  内存限制：32768 KB难度：2描述After hh has learned how to play Nim game, he begins to try another coin game which seems much easier.The game goes like this: Tw

Coin Test时间限制：3000 ms  |  内存限制：65535 KB难度：1描述 As is known to all,if you throw a coin up and let it droped on the desk there are usually three results. Yes,just believe what I say ~it can be

I'll play a trick on you时间限制：3000 ms  |  内存限制：65535 KB难度：1描述Please look the picture carefully. Then I'll give you two integers and your task is output the third one.Please never doub

cigarettes时间限制：3000 ms  |  内存限制：65535 KB难度：2描述 Tom has many cigarettes. We hypothesized that he has n cigarettes and smokes themone by one keeping all the butts. Out of k > 1 butts he ca

I Think I Need a HouseboatTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 85201 Accepted: 36882DescriptionFred Mapper is considering purchasing some land

A Famous Music Composer时间限制：1000 ms  |  内存限制：65535 KB难度：1描述 Mr. B is a famous music composer. One of his most famous work was his set of preludes. These 24 pieces span the 24 musical keys (t