蒟蒻JHY

摘要： Discription Moriarty has trapped n people in n distinct rooms in a hotel. Some rooms are locked, others are unlocked. But, there is a condition that t 阅读全文

摘要： Discription Ivan is fond of collecting. Unlike other people who collect post stamps, coins or other material stuff, he collects software bugs. When Iv 阅读全文