摘要:
B. Making a String 题目连接: http://codeforces.com/contest/624/problem/B Description You are given an alphabet consisting of n letters, your task is to ma 阅读全文
摘要:
A. Save Luke 题目连接: http://codeforces.com/contest/624/problem/A Description Luke Skywalker got locked up in a rubbish shredder between two presses. R2D 阅读全文