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Jack is working on his jumping skills recently. Currently he's located at point zero of the number line. He would like to get to the point x. In order 阅读全文
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Not long ago Billy came across such a problem, where there were given three natural numbers A, B and C from the range [1, N], and it was asked to chec 阅读全文
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D. How many trees? time limit per test 1 second memory limit per test 64 megabytes input standard input output standard output D. How many trees? time 阅读全文
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C. Looking for Order time limit per test 4 seconds memory limit per test 512 megabytes input standard input output standard output Girl Lena likes it 阅读全文
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B. Obsession with Robots time limit per test 2 seconds memory limit per test 64 megabytes input standard input output standard output The whole world 阅读全文
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LazyChild is a lazy child who likes candy very much. Despite being very young, he has two large candy boxes, each contains n candies initially. Everyd 阅读全文
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Prof. Tigris is the head of an archaeological team who is currently in charge of an excavation in a site of ancient relics. This site contains relics 阅读全文
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Dire wolves, also known as Dark wolves, are extraordinarily large and powerful wolves. Many, if not all, Dire Wolves appear to originate from Draenor. 阅读全文
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Matt has N friends. They are playing a game together. Each of Matt’s friends has a magic number. In the game, Matt selects some (could be zero) of his 阅读全文
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Jenny likes balls. He has some balls and he wants to arrange them in a row on the table. Each of those balls can be one of three possible colors: red, 阅读全文