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Time Limit: 0.5 second(s) Memory Limit: 32 MB Nowadays the one-way traffic is introduced all over the world in order to improve driving safety and red 阅读全文
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Lucky numbers are defined by a variation of the well-known sieve of Eratosthenes. Beginning with the natural numbers strike out all even ones, leaving 阅读全文
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Anton likes to play chess. Also, he likes to do programming. That is why he decided to write the program that plays chess. However, he finds the game 阅读全文
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Anton is playing a very interesting computer game, but now he is stuck at one of the levels. To pass to the next level he has to prepare npotions. Ant 阅读全文