http://www.cnblogs.com/keam37/p/3639294.html keam所有 转载请注明出处 Problem Description Give you two definitions tree and rooted tree. An undirected connected graph without cycles is called a tree. A tree is called rooted if it has a distinguished vertex r c…
题目:传送门 题目描述 This is a very simple problem, just like previous one. You are given a postive integer n, and you need to divide this integer into m pieces. Then multiply the m pieces together. There are many way to do this. But shadow95 want to know the…