代码艺术的道与术

Children’s GameThere are lots of number games for children. These games are pretty easy to play but not so easy to make. We will discuss about an interesting game here. Each player will be given

题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=19591解题思路：题意是给你一个last number记为n，在1~n之间给出house number记为m，求1~m的和 == n ~ m的和，输出10个满足条件的m和n，每个数字宽度为10。由求和公式，我们很明显可以推导出m和 n的关系为2 *

题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=22646解题思路：问1~n内选出三个不同的整数，组成三角形，有多少种选法？n的数据很大，进行数学分析可得。利用加法原理，枚举三角形的最长边为x的三角形有c(x)个，另外两边长分别为y和z。根据三角形不等式，有y + z > x，所以z的范围是x - y

题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=28547解题思路：此题需要高效算法，根据Floyd判圈算法的思想，可以另k1 = k , k2 = k，用ans保存最大值。当k1 == k2时，跳出循环输出and即可。说明下，当k1== k2时是循环节的结束，再往下继续执行的话会出现循环，对解题

Ecological PremiumTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18810DescriptionGerman farmers are giv

Rotating SentencesTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18814DescriptionIn ``Rotating Senten

The DecoderTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18811DescriptionWrite a complete program that

Kindergarten Counting GameTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18812DescriptionEverybody sit

A - CouponsTime Limit:3000MS Memory Limit:0KB 64bit IO Format:%lld & %lluDescriptionInput: standard inputOutput: standard outputTime Limit: 2 secondsMemory Limit: 32 MB

Automatic PoetryTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=25129DescriptionTime Limit: 2 seconds

Where's Waldorf?Time Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18656DescriptionWhere's Waldorf? Giv

PalindromesTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=19520DescriptionA regular palindrome is a str

Back to High School PhysicsTime Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu题目链接：http://acm.hust.edu.cn/vjudge/problem/viewProblem.action?id=18809DescriptionA particle

Problem AAlmost Union-FindI hope you know the beautiful Union-Find structure. In this problem, you're to implement something similar, but not identical.The data structure you need to write is

Easy Problem from Rujia Liu?Though Rujia Liu usually sets hard problems for contests (for example, regional contests like Xi'an 2006, Beijing 2007 and Wuhan 2009, or UVa OJ contests like Rujia Liu's

Watering GrassInput: standard inputOutput: standard outputTime Limit: 3 secondsn sprinklers are installed in a horizontal strip of grass l meters long andw meters wide. Each sprinkler is i

SongsTime Limit:1000MS    Memory Limit:65536KB    64bit IO Format:%I64d & %I64uDescriptionJohn Doe is a famous DJ and, therefore, has the problem of optimizing the placement of songs o