2016年5月23日
【 UVALive - 5095】Transportation（费用流）
摘要： Description There are N cities, and M directed roads connecting them. Now you want to transport K units ofgoods from city 1 to city N. There are many 阅读全文
posted @ 2016-05-23 13:37 konjak魔芋 阅读(265) 评论(0) 推荐(0)