摘要:
题目链接:http://codeforces.com/problemset/problem/1017/BDescriptionRudolf is on his way to the castle. Before getting into the castle... 阅读全文
摘要:
题目链接:http://codeforces.com/problemset/problem/1017/ADescriptionJohn Smith knows that his son, Thomas Smith, is among the best stu... 阅读全文