hdu4864 题意: 有n个机器,m个任务,n,m<=100000,每个机器都有工作时间的最大限制xi(0<xi<1440)和完成的最大难度yi(0<=yi<=100),每个任务也有所需要的时间和难度,只要机器的时间大于等于任务,难度大于等于任务,该任务就可以被机器完成,每完成一个任务就可以得到500*xi+2*yi的money,问最多能有多少个任务被完成,并且保证完成任务数量最多的情况下,所得到的money最多是多少? 思路: 由于money是500*x+2*y,而y最大…

题意:       两个人有一些图片,矩形的,问a最多能够覆盖b多少张图片.. 思路:       明显是贪心,但是有一点很疑惑,如果以别人为主,每次都用自己最小的切能覆盖敌人的方法就wa,而以自己为主,去覆盖自己可能覆盖的最大就ac了,证明不了,总感觉这东西在孙子兵法里会有,,解题过程就是先吧两个人的所有卡片放一起以 长 小的在前面,如果 长 相等 id 大的(被覆盖那个)在前面排序,保证每一个卡片能覆盖的一定在自己的前面,然后从1开始跑循环,如果当前的点是被覆盖的点,那么直接把他的y扔进se…

Problem Description Alice and Bob's game never ends. Today, they introduce a new game. In this game, both of them have N different rectangular cards respectively. Alice wants to use his cards to cover Bob's. The card A can cover the card B if the hei…

Problem Description Alice and Bob's game never ends. Today, they introduce a new game. In this game, both of them have N different rectangular cards respectively. Alice wants to use his cards to cover Bob's. The card A can cover the card B if the hei…

Alice and Bob Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2869    Accepted Submission(s): 926 Problem Description Alice and Bob's game never ends. Today, they introduce a new game. In this…

1692: [Usaco2007 Dec]队列变换 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 1383  Solved: 582[Submit][Status][Discuss] Description FJ打算带他的N(1 <= N <= 30,000)头奶牛去参加一年一度的“全美农场主大奖赛”.在这场比赛中,每个参赛者都必须让他的奶牛排成一列,然后领她们从裁判席前依次走过. 今年,竞赛委员会在接受队伍报名时,采用了一种新的登记规则:他们把所…

Wooden Sticks Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 15564    Accepted Submission(s): 6405 Problem Description There is a pile of n wooden sticks. The length and weight of each stick a…

FatMouse' Trade Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 56784    Accepted Submission(s): 19009 Problem Description FatMouse prepared M pounds of cat food, ready to trade with the cats g…

1691: [Usaco2007 Dec]挑剔的美食家 Time Limit: 5 Sec  Memory Limit: 64 MBSubmit: 786  Solved: 391[Submit][Status][Discuss] Description 与很多奶牛一样,Farmer John那群养尊处优的奶牛们对食物越来越挑剔,随便拿堆草就能打发她们午饭的日子自然是一去不返了.现在,Farmer John不得不去牧草专供商那里购买大量美味多汁的牧草,来满足他那N(1 <= N <= 100,…

http://codeforces.com/contest/738/problem/D Galya is playing one-dimensional Sea Battle on a 1 × n grid. In this game a ships are placed on the grid. Each of the ships consists of bconsecutive cells. No cell can be part of two ships, however, the shi…