摘要：A. Protect Sheep time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bob is a farmer. He has 阅读全文

摘要：A. Left-handers, Right-handers and Ambidexters time limit per test 1 second memory limit per test 256 megabytes input standard input output standard o 阅读全文

摘要：A. Friends Meeting time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output time limit per test 1 阅读全文

摘要：A. Olympiad time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output The recent All-Berland Olympi 阅读全文