http://noi.openjudge.cn/——4.7算法之搜索——【169:The Buses】169:The Buses 总时间限制: 5000ms 内存限制: 65536kB 描述 A man arrives at a bus stop at 12:00. He remains there during 12:00-12:59. The bus stop is used by a number of bus routes. The man notes the times of arriving buses. The times when buses arrive are given. Buses