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GCD Matrixlockedby ma5termindProblemSubmissionsLeaderboardDiscussionsEditorial Alex has two arrays defined as  and . He created an  matrix,

Widget FactoryTime Limit: 7000MS Memory Limit: 65536KTotal Submissions: 5806 Accepted: 2013DescriptionThe widget factory produces several different kinds of wid

SETITime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 2030 Accepted: 1236DescriptionFor some years, quite a lot of work has been put into listening to e

Flip GameTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 42090 Accepted: 18169DescriptionFlip game is played on a rectangular 4x4 field with two-sided

EXTENDED LIGHTS OUTTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 9807 Accepted: 6360DescriptionIn an extended version of the game Lights Out, is a p

快速排斥实验+跨立实验先来讲解一下题目需要用到的前置技能1）快速排斥实验2）跨立实验先来讲快速排斥吧快速排斥可以理解为两条线段相交的“预处理”，先大体的判断一下，如果最开始最简单的判断都过不了那么两条线段一定不相交，快速排斥实验，就是以两条线段为对角线，建立两个矩形，如果两个矩形不相交，那么两条线段一定不相交，如果两个矩形相交了，还需要经过跨立实验来判断两条线段是不是相

Beauty ContestTime Limit: 3000MS Memory Limit: 65536KTotal Submissions: 34687 Accepted: 10728DescriptionBessie, Farmer John's prize cow, has just won first plac

WallTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 35059 Accepted: 11945DescriptionOnce upon a time there was a greedy King who ordered his chief Arc

Expanding RodsTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 15096 Accepted: 4009DescriptionWhen a thin rod of length L is heated n degrees, it expan

PieTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 15241 Accepted: 5217 Special JudgeDescriptionMy birthday is coming up and traditionally I'm ser

PipeTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 10307 Accepted: 3191DescriptionThe GX Light Pipeline Company started to prepare bent pipes for the

FishnetTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 2132 Accepted: 1343DescriptionA fisherman named Etadokah awoke in a very small island. He could

DisksTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 1652 Accepted: 395DescriptionConsider N floating point numbers N representing the radii of N disk

题目链接：https://icpc.njust.edu.cn/Contest/749/C/此题是容斥+唯一分解定理，建议先去学习前置技能，这两个知识点都很好理解，适当的去学一下唯一分解定理的扩展应用（虽说到现在我还没有做到关于他应用的题=-=）。求一个区间中有多少个数和给定的数字互斥（互质），需要对给定的数字进行素因数分解，然后利用二进制0 1的特性去组合每一个数字，最后利用容斥的奇加

青蛙的约会Time Limit: 1000MS Memory Limit: 10000KTotal Submissions: 103947 Accepted: 20246Description两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直到碰

分解素因子Time Limit: 1500ms   Memory limit: 10000K  有疑问？点这里^_^题目描述假设x是一个正整数，它的值不超过65535(即1输入输入的第一行含一个正整数k (1输出每个测试例对应一行输出，输出x的素数乘积表示式，式中的素数从小到大排列，两个素数之间用“*”表示乘法

GCD问题Time Limit: 1000ms   Memory limit: 65536K  有疑问？点这里^_^题目描述给出区间 gcd(x,y) = k,a 。T(1 T行，每行五个整数输出 输出示例输入2384 31270 278 37299 70336 35722 493 16985

The Embarrassed CryptographerTime Limit: 2000MS Memory Limit: 65536KTotal Submissions: 13999 Accepted: 3819DescriptionThe young and very promising cryptographer

SumdivTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 18987 Accepted: 4767DescriptionConsider two natural numbers A and B. Let S be the sum of all nat

C LooooopsTime Limit: 1000MS Memory Limit: 65536KTotal Submissions: 23388 Accepted: 6443DescriptionA Compiler Mystery: We are given a C-language style for loop

Number SequenceTime Limit: 1000MS Memory Limit: 10000KTotal Submissions: 37890 Accepted: 10952DescriptionA single positive integer i is given. Write a program t

CodeTime Limit: 1000MS Memory Limit: 30000KTotal Submissions: 9320 Accepted: 4454DescriptionTransmitting and memorizing information is a task that requires diff

转载地址：http://www.cnblogs.com/lyy289065406/archive/2011/07/31/2122758.html大致题意：输入两个十进制正整数a和b，求闭区间 [a ,b] 内有多少个Round number所谓的Round Number就是把一个十进制数转换为一个无符号二进制数，若该二进制数中0的个数大于等于1的个数，则它就是一个Round Numbe

Strange Way to Express IntegersTime Limit: 1000MS Memory Limit: 131072KTotal Submissions: 14124 Accepted: 4570DescriptionElina is reading a book written by Ru

E. Timofey and remodulingtime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputLittle Timofey likes integers a l