摘要：
User NamesTime Limit : 8000/4000ms (Java/Other) Memory Limit : 32768/32768K (Java/Other)Total Submission(s) : 40 Accepted Submission(s) : 6Font: Times New Roman | Verdana | GeorgiaFont Size: ← →Problem DescriptionA university's computer system assigns user names according to the following set of 阅读全文