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Description The citizens of Bytetown, AB, could not stand that the candidates in the mayoral election campaign have been placing their electoral poste 阅读全文
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Kostya is a genial sculptor, he has an idea: to carve a marble sculpture in the shape of a sphere. Kostya has a friend Zahar who works at a career. Za 阅读全文
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There was an epidemic in Monstropolis and all monsters became sick. To recover, all monsters lined up in queue for an appointment to the only doctor i 阅读全文
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Description Railway tickets were difficult to buy around the Lunar New Year in China, so we must get up early and join a long queue… The Lunar New Yea 阅读全文
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Given a list of N numbers you will be allowed to choose any M of them. So you can choose in NCM ways. You will have to determine how many of these cho 阅读全文
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Problem Description 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 boa 阅读全文
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Young theoretical computer scientist Fxx designed a game for his students. In each game, you will get three integers X,k,t.In each step, you can only 阅读全文
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Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up 阅读全文
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You are given n segments on a line. There are no ends of some segments that coincide. For each segment find the number of segments it contains. You ar 阅读全文
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Jimmy writes down the decimal representations of all natural numbers between and including m and n, (m ≤ n). How many zeroes will he write down? Input 阅读全文