摘要： TextEncryptionTime Limit:1000ms,Special Time Limit:2500ms,Memory Limit:65535KBTotal submit users:28,Accepted users:28Problem 12346 :No special judgementProblem descriptionTo keep privacy of messages and prevent the aliens from reading them, we may use various encryption algorithms. These algorithms 阅读全文

摘要： ElevatorTroubleTime Limit:1000ms,Special Time Limit:2500ms,Memory Limit:32768KBTotal submit users:29,Accepted users:29Problem 12366 :No special judgementProblem descriptionYou are on your way to your rst job interview as a program tester, and you are already late. The interview is in a skyscraper a. 阅读全文