BestCoder Round #57(Div.2) (2/4) (Div.1) (1/4)
maksyuki 发表于 比赛 分类,标签: 比赛-bestcoder
27
9月
2015
Scaena Felix
Problem Description
Given a parentheses sequence consist of '(' and ')', a modify can filp a parentheses, changing '(' to ')' or ')' to '('. 阅读全文 »