lzs_lazy

Consider a tree T with N (1 <= N <= 20,000) nodes numbered 1…N. Deleting any node from the tree yields a forest: a collection of one or more trees. Define the balance of a node to be the size of the la

D. Kay and Snowflake time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output After the piece of a devilish mirror hit the Kay’s eye, he is no

Language: Godfather Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 7652 Accepted: 2701 DescriptionLast years Chicago was full of gangster fights and strange murders. The chief

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每个测试实例首先包括2个整数，N,M.(1 &amp;amp;lt;= M &amp;amp;lt;= N &amp;amp;lt;= 200);在...