摘要：
1651: [Usaco2006 Feb]Stall Reservations 专用牛棚 Description Oh those picky N (1 <= N <= 50,000) cows! They are so picky that each one will only be milked 阅读全文
posted @ 2017-01-17 14:24
lkhll
阅读(2037)
评论(0)
推荐(0)
人生有信仰 数据有梯度 暴力不爆零
浙公网安备 33010602011771号