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E. Tree Folding time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output Vanya wants to minimize 阅读全文
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D. Artsem and Saunders time limit per test 2 seconds memory limit per test 512 megabytes input standard input output standard output Artsem has a frie 阅读全文
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At the entrance to the university, there is a huge rectangular billboard of size h*w (h is its height and w is its width). The board is the place wher 阅读全文