摘要：A. Combination Lock time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A. Combination Lock 阅读全文

摘要：D. Phillip and Trains time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output D. Phillip and Trai 阅读全文

摘要：Charitable Exchange Charitable Exchange Time Limit: 4000/2000MS (Java/Others) Memory Limit: 65535/65535KB (Java/Others) Submit Status Have you ever he 阅读全文

摘要：B. Mike and Shortcuts time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output B. Mike and Shortc 阅读全文

摘要：Transform Time Limit: 4000/2000MS (Java/Others) Memory Limit: 128000/64000KB (Java/Others) Submit Statistic Next Problem Problem Description One can t 阅读全文

摘要：Problem Description Harry Potter has some precious. For example, his invisible robe, his wand and his owl. When Hogwarts school is in holiday, Harry ... 阅读全文

摘要：DescriptionSunnyPig is a pig who is much cleverer than any other pigs in the pigpen. One sunny morning, SunnyPig wants to go out of the pigpen to date... 阅读全文