摘要： Information DisturbingTime Limit: 6000/3000 MS (Java/Others)Memory Limit: 131072/65536 K (Java/Others)Total Submission(s): 844Accepted Submission(s): 304Problem DescriptionIn the battlefield , an effective way to defeat enemies is to break their communication system.The information department told y 阅读全文

摘要： GeoDefenseTime Limit: 12000/5000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 347Accepted Submission(s): 138Problem DescriptionTower defense is a kind of real-time strategy computer games. The goal of tower defense games is to try to stop enemies from reaching your b 阅读全文

摘要： Find Metal MineralTime Limit: 2000/1000 MS (Java/Others)Memory Limit: 65768/65768 K (Java/Others)Total Submission(s): 1441Accepted Submission(s): 631Problem DescriptionHumans have discovered a kind of new metal mineral on Mars which are distributed in point‐like with paths connecting each of them wh 阅读全文

摘要： The more, The BetterTime Limit: 6000/2000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3149Accepted Submission(s): 1857Problem DescriptionACboy很喜欢玩一种战略游戏，在一个地图上，有N座城堡，每座城堡都有一定的宝物，在每次游戏中ACboy允许攻克M个城堡并获得里面的宝物。但由于地理位置原因，有些城堡不能直接攻克，要攻克这些城堡必须先攻克其他某一个特定的城堡。你能帮ACboy算出要获得尽量多 阅读全文

摘要： 悼念512汶川大地震遇难同胞——珍惜现在，感恩生活Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 7531Accepted Submission(s): 3108Problem Description急！灾区的食物依然短缺！为了挽救灾区同胞的生命，心系灾区同胞的你准备自己采购一些粮食支援灾区，现在假设你一共有资金n元，而市场有m种大米，每种大米都是袋装产品，其价格不等，并且只能整袋购买。请问：你用有限的资金最多能采购多少公斤粮食呢？后记：人生是 阅读全文