ACM77的博客

Binary Tree Traversals                                                      Time Limit: 1000/1000 MS     Memory Limit: 32768/32768 K A binary tree is a finite set of vertices that is either empt

S-Trees(满二叉树数组保存与编号) A Strange Tree (S-tree) over the variable set Xn = {x1,x2,...,xn} is a binary tree representing a Boolean function f:{0,1}->{0,1}. Each path of the S-tree begins at the r

Elven Postman Time Limit: 1500/1000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Problem Description Elves are very peculiar creatures. As we all know, they can live for a ve