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On vacations n pupils decided to go on excursion and gather all together. They need to overcome the path with the length l meters. Each of the pupils 阅读全文
posted @ 2016-07-23 13:09
zhber
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Sergei B., the young coach of Pokemons, has found the big house which consists of n flats ordered in a row from left to right. It is possible to enter 阅读全文
posted @ 2016-07-23 12:58
zhber
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Vasya has the square chessboard of size n × n and m rooks. Initially the chessboard is empty. Vasya will consequently put the rooks on the board one a 阅读全文
posted @ 2016-07-23 12:51
zhber
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There are n cards (n is even) in the deck. Each card has a positive integer written on it. n / 2 people will play new card game. At the beginning of t 阅读全文
posted @ 2016-07-23 12:49
zhber
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