摘要:
B. Recover the String 题目连接: http://www.codeforces.com/contest/708/problem/B Description For each string s consisting of characters '0' and '1' one can 阅读全文
摘要:
A. Letters Cyclic Shift 题目连接: http://www.codeforces.com/contest/708/problem/A Description You are given a non empty string s consisting of lowercase E 阅读全文