称0到$L$的方向为左,同时为了方便,可以假设$0<t_{i}\le 2L$ 当我们确定是进入店中的方向,根据这个店的位置以及购物时间,不难确定出来时火车经过0或$L$的次数,由于$0<t_{i}\le 2L$,因此总共至少有一次且分别不超过1次,即分以下三类讨论: 1.经过0未经过$L$,在该位置上标记为1 2.经过$L$未经过0,在该位置上标记为-1 3.经过$L$且经过0,在该位置上标记为1.-1 同时,对于坐在车上经过0或$L$,也可以看作0或$L$上有一个商店,即在0上记录1,$L$…

Shopping Time Limit: 1000MS Memory limit: 65536K 题目描述 Saya and Kudo go shopping together.You can assume the street as a straight line, while the shops are some points on the line.They park their car at the leftmost shop, visit all the shops from left…

http://acm.sdut.edu.cn/sdutoj/problem.php?action=showproblem&problemid=2154 Shopping Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Saya and Kudo go shopping together.You can assume the street as a straight line, while the shops are some…

Shopping Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 632 Accepted Submission(s): 209 Problem Description You have just moved into a new apartment and have a long list of items you need to buy…

eclipse中 启动tomcat时报Multiple Contexts have a path of "/shopping". 这个是由于你的server服务器中的server.xml文件 中关于同一个工程配置了多个<context></context>的原因,删除多余的就可以了. 不要把其他工程的也给删除了…

P2732 商店购物 Shopping Offers 23通过 41提交 题目提供者该用户不存在 标签USACO 难度提高+/省选- 提交  讨论  题解 最新讨论 暂时没有讨论 题目背景 在商店中,每一种商品都有一个价格(用整数表示).例如,一朵花的价格是 2 zorkmids (z),而一个花瓶的价格是 5z .为了吸引更多的顾客,商店举行了促销活动. 题目描述 促销活动把一个或多个商品组合起来降价销售,例如: 三朵花的价格是 5z 而不是 6z, 两个花瓶和一朵花的价格是 10z 而不是…

题目链接: http://acm.hust.edu.cn/vjudge/problem/48416 Shopping Malls Time Limit: 3000MS 问题描述 We want to create a smartphone application to help visitors of a shopping mall and you have to calculate the shortest path between pairs of locations in the mall…

Shopping 题目连接: http://codeforces.com/gym/100803/attachments Description Your friend will enjoy shopping. She will walk through a mall along a straight street, where N individual shops (numbered from 1 to N) are aligned at regular intervals. Each shop…

A. Patrick and Shopping Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/599/problem/A Description Today Patrick waits for a visit from his friend Spongebob. To prepare for the visit, Patrick needs to buy some goodies in two…

Shopping Offers Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 4696   Accepted: 1967 Description In a shop each kind of product has a price. For example, the price of a flower is 2 ICU (Informatics Currency Units) and the price of a vas…