其实大部分是东京时间第二天凌晨才做的- -但国际服刷新比较晚 BGM:刀剑如梦 Decsripition Given a string s of ‘(’ , ‘)’ and lowercase English characters. Your task is to remove the minimum number of parentheses ( ‘(’ or ‘)’, in any po
Description Given a string s of ‘(’ , ‘)’ and lowercase English characters. Your task is to remove the minimum number of parentheses ( ‘(’ or ‘)’, in any positions ) so that the resulting parenthese
三角形 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6212 Accepted Submission(s): 4181 Problem Description 用N个三角形最多可以把平面分成几个区域?