2017年4月5日
poj2135 Farm Tour（费用流）
摘要： Description When FJ's friends visit him on the farm, he likes to show them around. His farm comprises N (1 <= N <= 1000) fields numbered 1..N, the fir 阅读全文
posted @ 2017-04-05 21:17 Klaier 阅读(166) 评论(0) 推荐(0) 编辑