摘要:
题目描述: Joe works in a maze. Unfortunately, portions of the maze have caught on fire, and the owner of the maze neglected to create a fire escape plan. 阅读全文
摘要:
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1102 题目描述: Problem Description There are N villages, which are numbered from 1 to N, and you should bui 阅读全文