夏午晴天

摘要： /* A. Pupils Redistribution time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output A. Pupils Red 阅读全文

摘要： /* Our chemical biologists have invented a new very useful form of life called stripies (in fact, they were first called in Russian - polosatiki, but 阅读全文