摘要：
2051. 王者之剑 ★★★☆ 输入文件：Excalibur.in 输出文件：Excalibur.out 简单对比 时间限制：1 s 内存限制：256 MB 【题目描述】 这是在阿尔托利亚·潘德拉贡成为英灵前的事情，她正要去拔出石中剑成为亚瑟王，在这之前她要去收集一些宝石。 宝石排列在一个n*m的网 阅读全文
摘要：
Destroying The Graph Description Alice and Bob play the following game. First, Alice draws some directed graph with N vertices and M arcs. After that 阅读全文
摘要：
John is a Chief Executive Officer at a privately owned medium size company. The owner of the company has decided to make his son Scott a manager in th 阅读全文