摘要:
RailroadTime Limit : 4000/2000ms (Java/Other)Memory Limit : 32768/32768K (Java/Other)Total Submission(s) : 16Accepted Submission(s) : 13Problem DescriptionA train yard is a complex series of railroad tracks for storing, sorting, or loading/unloading railroad cars. In this problem, the railroad track 阅读全文