2015年7月21日
2015 HUAS Summer Training#2~A
摘要： DescriptionYou are given a string consisting of parentheses()and[]. A string of this type is said to becorrect:(a)if it is the empty string(b)if A and... 阅读全文
posted @ 2015-07-21 19:28 简约。 阅读(168) 评论(0) 推荐(0) 编辑