摘要： C. Watchmen time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Watchmen are in a danger and 阅读全文

摘要： B. Beautiful Paintings time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are n pictur 阅读全文

摘要： A. Joysticks time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Friends are going to play co 阅读全文