题目链接:http://poj.org/problem?id=3764 Time Limit: 2000MS Memory Limit: 65536K Description In an edge-weighted tree, the xor-length of a path p is defined as the xor sum of the weights of edges on p: $_{xor}length(p) = \bigoplus_{e \in p}w(e)$ $\oplus$…
题目链接:pid=1247" target="_blank">http://acm.hdu.edu.cn/showproblem.php? pid=1247 Problem Description A hat's word is a word in the dictionary that is the concatenation of exactly two other words in the dictionary. You are to find all the h…
HDU Today Time Limit: 15000/5000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 23388 Accepted Submission(s): 5614 Problem Description 经过锦囊相助,海东集团终于度过了危机,从此,HDU的发展就一直顺风顺水,到了2050年,集团已经相当规模了,据说进入了钱江肉丝经济开发区500强.这时候,…