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Problem Description There is a kangaroo at coordinate 0 on an infinite number line that runs from left to right, at time 0. Dur... 阅读全文
posted @ 2022-09-20 22:54
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Problem Description Snuke, who loves animals, built a zoo. There are N animals in this zoo. They are conveniently numbered 1 t... 阅读全文
posted @ 2022-09-20 22:54
老程序员111
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Problem Description Snuke loves puzzles. Today, he is working on a puzzle using S- and c-shaped pieces. In this puzzle, you ca... 阅读全文
posted @ 2022-09-20 22:54
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Problem Description Snuke has decided to play a game using cards. He has a deck consisting of N cards. On the i-th card from th... 阅读全文
posted @ 2022-09-20 22:54
老程序员111
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Problem Description Snuke has decided to play with a six-sided die. Each of its six sides shows an integer 1 through 6, and two... 阅读全文
posted @ 2022-09-20 22:54
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Problem Description There are N towns on a line running east-west. The towns are numbered 1 through N, in order from west to ea... 阅读全文
posted @ 2022-09-20 22:54
老程序员111
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Problem Description You are given an integer N. Find the number of the positive divisors of N!, modulo 109+7. Constraints 1≤N... 阅读全文
posted @ 2022-09-20 22:54
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Problem Description Scientists say a lot about the problems of global warming and cooling of the Earth. Indeed, such natural ph... 阅读全文
posted @ 2022-09-20 22:53
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Problem Description Vasya is going to the Olympics in the city Ntown by train. The boy wants to read the textbook to prepare fo... 阅读全文
posted @ 2022-09-20 22:53
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Problem Description One fine October day a mathematics teacher Vasily Petrov went to a class and saw there n pupils who sat at ... 阅读全文
posted @ 2022-09-20 22:53
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