poj3268俩次SPFA。。。。。
摘要：
Description One cow from each of N farms (1 ≤ N ≤ 1000) conveniently numbered 1..N is going to attend the big cow party to be held at farm #X (1 ≤ ... 阅读全文
posted @ 2014-08-13 20:23 胖胖的乓乓 阅读(126) 评论(0) 推荐(0) 编辑
