题目大意:n个学生去旅行,旅行中每个学生先垫付,最后平摊所有费用,多退少补,并且支出差距控制在1分钱以内,求最小的交易金额. @2013-8-16 以前在zoj做过,把原来的代码直接提交了,虽然AC了,可是记得原来有问题,再一看确实感觉有问题,竟然AC了...然后就自己重写,写完之后总是WA,就放下了,过一段时间在看,再改,提交,仍是WA,太打击人了,不算难的一道题把我虐成这样...今天看World of Seven上的解法时猛然醒悟,自己一直在纠结精度方面的问题,却没发现在向下截取aver时转…

题目大意:给你一个数字n和字体大小s,输出数字的液晶显示.直接模拟,代码如下: #include <stdio.h> void draw(int n,int s,int row) { int i; ) { printf(" "); ||n==||(n>=&&n<=)||n==) ;i<s;i++) printf("-"); ;i<s;i++) printf(" "); printf("…

Primary Arithmetic Time Limit: 2 Seconds      Memory Limit: 65536 KB Children are taught to add multi-digit numbers from right-to-left one digit at a time. Many find the "carry" operation - in which a 1 is carried from one digit position to be a…

详解OJ(Online Judge)中PHP代码的提交方法及要点 Introduction of How to submit PHP code to Online Judge Systems  Introduction of How to commit submission in PHP to Online Judge Systems 在目前常用的在线oj中,codeforces.spoj.uva.zoj 等的题目可使用PHP实现基本算法,zoj是目前对PHP支持较好的中文OJ. PHP是一门比…

最近在跟着算法竞赛入门经典刷题,发现Uva网站打开超级慢,进个主页面都需要好几秒.后来发现可以通过vjudge网站刷Uva的题目,很是方便,在这mark一下,顺便做一下推荐. vjudge网址:https://vjudge.net,点击后会进入vjudge网站主页,如下图: 可以发现vjudge支持包括POJ.Uva.ZOJ等等一系列OJ网站的题目评测.第一次通过该网站刷题需要先注册一个账号,点击右上角Register按钮,会跳出注册页面: 只需填写好名字.密码.Email.验证码即可注册成功.…

Closest Common Ancestors Time Limit: 10 Seconds      Memory Limit: 32768 KB Write a program that takes as input a rooted tree and a list of pairs of vertices. For each pair (u,v) the program determines the closest common ancestor of u and v in the tr…

#include<cstdio> #include<iostream> #include<string> #include<algorithm> #include<iterator> using namespace std; /* * A solution for "The Trip" problem. * UVa ID: 10137 */ #include <stdio.h> int main (int argc…

POJ 1511 Invitation Cards / UVA 721 Invitation Cards / SPOJ Invitation / UVAlive Invitation Cards / SCU 1132 Invitation Cards / ZOJ 2008 Invitation Cards / HDU 1535 (图论,最短路径) Description In the age of television, not many people attend theater perfor…

POJ 2289 Jamie's Contact Groups / UVA 1345 Jamie's Contact Groups / ZOJ 2399 Jamie's Contact Groups / HDU 1699 Jamie's Contact Groups / SCU 1996 Jamie's Contact Groups (二分,二分图匹配) Description Jamie is a very popular girl and has quite a lot of friends…

题目链接:https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2041 A number of students are members of a club that travels annually to exotic locations. Their destinations in the past have included Indian…