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Burglar and Matches CodeForces - 16B A burglar got into a matches warehouse and wants to steal as many matches as possible. In the warehouse there are 阅读全文
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Fox And Jumping CodeForces - 510D Fox Ciel is playing a game. In this game there is an infinite long tape with cells indexed by integers (positive, ne 阅读全文
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Dreamoon and Sets CodeForces - 476D Dreamoon likes to play with sets, integers and . is defined as the largest positive integer that divides both a an 阅读全文
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Subway CodeForces - 131D A subway scheme, classic for all Berland cities is represented by a set of nstations connected by n passages, each of which c 阅读全文
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Gargari and Permutations CodeForces - 463D Gargari got bored to play with the bishops and now, after solving the problem about them, he is trying to d 阅读全文
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Tree Construction CodeForces - 675D During the programming classes Vasya was assigned a difficult problem. However, he doesn't know how to code and wa 阅读全文
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Train and Peter CodeForces - 8A Peter likes to travel by train. He likes it so much that on the train he falls asleep. Once in summer Peter was going 阅读全文
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Strange Addition CodeForces - 305A Unfortunately, Vasya can only sum pairs of integers (a, b), such that for any decimal place at least one number has 阅读全文
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Three Logos CodeForces - 581D Three companies decided to order a billboard with pictures of their logos. A billboard is a big square board. A logo of 阅读全文
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Predict Outcome of the Game CodeForces - 451C There are n games in a football tournament. Three teams are participating in it. Currently k games had a 阅读全文