题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=5024 题目的意思就是 :找只能拐一个90度的弯的最长路。。直接模拟就好。。 记得网赛的时候，对这个题的题意还是比较有争议的。。。 贴下最主要的题意：if there was a turn, that turn must be ninety degree. 如果有弯，那必须是90度的弯。。这一点

Problem Description 《Dream of the Red Chamber》(also 《The Story of the Stone》) is one of the Four Great Classical Novels of Chinese literature, and it is commonly regarded as the best one. This no

Wang Xifeng's Little Plot Problem Description 《Dream of the Red Chamber》(also 《The Story of the Stone》) is one of the Four Great Classical Novels of Chinese literature, and it is commonl