摘要：聪聪和可可是兄弟俩，他们俩经常为了一些琐事打起来，例如家中只剩下最后一根冰棍而两人都想吃、两个人都想玩儿电脑（可是他们家只有一台电脑）……遇到这种问题，一般情况下石头剪刀布就好了，可是他们已经玩儿腻了这种低智商的游戏。他们的爸爸快被他们的争吵烦死了，所以他发明了一个新游戏：由爸爸在纸上画n个“点”， 阅读全文

摘要：Kelukin is a businessman. Every day, he travels around cities to do some business. On August 17th, in memory of a great man, citizens will read a book 阅读全文

摘要：ACboy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算出要获得尽量多的宝物应该攻克哪M个城堡吗？ Input每 阅读全文

摘要：There is going to be a party to celebrate the 80-th Anniversary of the Ural State University. The University has a hierarchical structure of employees 阅读全文

摘要：Farmer John's family pitches in with the chores during milking, doing all the chores as quickly as possible. At FJ's house, some chores cannot be star 阅读全文