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
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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
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D. Babaei and Birthday Cake time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output D. Babaei an 阅读全文