题目:http://acm.hdu.edu.cn/showproblem.php?pid=6582 Path Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 3747 Accepted Submission(s): 1075 Problem Description Years later, Jerry fell in love
Problem Description Open Source Tools help earthquake researchers stay a step ahead. Many geological research facilities around the world use or are in the process of developing open source software and applications designed to interpret and share in
链接: https://vjudge.net/problem/HDU-4289 题意: You, the head of Department of Security, recently received a top-secret information that a group of terrorists is planning to transport some WMD 1 from one city (the source) to another one (the destination)
Description It is year 2500 A.D. and there is a terrible war between the forces of the Earth and the Mars. Recently, the commanders of the Earth are informed by their spies that the invaders of Mars want to land some paratroopers in the m × n grid ya
Description You’ve finally got mad at “the world’s most stupid” employees of yours and decided to do some firings. You’re now simply too mad to give response to questions like “Don’t you think it is an even more stupid decision to have signed them?”,
2435 There is a war 题意: 给你一个有向图,其中可以有一条边是无敌的,这条边可以是图中的边,也可以是自己任意加上去的图中没有的边,这条无敌的边不可以摧毁,让1和n无法连通的最大摧毁费用,就是1到n的最小割中的最大的那个,这个题卡了好几天,一开始是各种方法各种wa,后来无意中发现自己犯了个sb错误,结果改正后以前的各种方法各种ac,比赛要是碰到这样的事估计就跪了... 思路: 首先能确定的就是题目要求咱们就最小割(最大流 = 最小割),但关键是有那么一条
难得的中文题,就不翻译了. 输入第一行为T,表示有T组测试数据.每组数据以两个整数N和M开始,表示地图的规模.接下来的N行,每一行包含一个长度为M的字符串,表示地图,‘.’表示陆地,’E’表示浅海域,’D’表示深海域.[Technical Specification]1. 1 <= T <= 1002. 1 <= N, M <= 47 题意:假设地图为一个N*M的格子,其中一些是陆地,一些是可以填充的浅海域,一些是不可填充的深海域.这里定义海岸线的长度为一个联通块陆地(可能包含浅海