摘要:
链接:https://www.nowcoder.com/acm/contest/141/E来源:牛客网Eddy likes to play with string which is a sequence of characters. One day, Eddy has played with a s 阅读全文
摘要:
比赛链接:http://codeforces.com/contest/1011 A. Stages 输入n,k,之后输入长度为n的字符串,要求找到一个字典序最短的长度为k的子串,且若字母为c,则之后不可以添入abcd,a=1,b=2,求最小的ans B. Planning The Expeditio 阅读全文