1651: [Usaco2006 Feb]Stall Reservations 专用牛棚 Time Limit: 10 Sec Memory Limit: 64 MBSubmit: 509 Solved: 280[Submit][Status] Description Oh those picky N (1 <= N <= 50,000) cows! They are so picky that each one will only be milked over some precise…
Description Oh those picky N (1 <= N <= 50,000) cows! They are so picky that each one will only be milked over some precise time interval A..B (1 <= A <= B <= 1,000,000), which includes both times A and B. Obviously, FJ must create a reserv…