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<center D. Fish Weight</center 题目连接：http://www.codeforces.com/contest/298/problem/D DescriptionIt is known that there are k fish species in the pola... 阅读全文
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<center C. Parity Game</center 题目连接：http://www.codeforces.com/contest/298/problem/C DescriptionYou are fishing with polar bears Alice and Bob. While... 阅读全文
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<center B. Sail</center 题目连接：http://www.codeforces.com/contest/298/problem/B DescriptionThe polar bears are going fishing. They plan to sail from (s... 阅读全文
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<center A. Snow Footprints</center 题目连接：http://www.codeforces.com/contest/298/problem/A DescriptionThere is a straight snowy road, divided into n bl... 阅读全文
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<center E. Hexagons</center 题目连接：http://codeforces.com/contest/615/problem/E DescriptionAyrat is looking for the perfect code. He decided to start h... 阅读全文
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<center D. Multipliers</center 题目连接：http://codeforces.com/contest/615/problem/D DescriptionAyrat has number n, represented as it's prime factorizati... 阅读全文
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<center C. Running Track</center 题目连接：http://www.codeforces.com/contest/615/problem/C DescriptionA boy named Ayrat lives on planet AMI 1511. Each in... 阅读全文
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<center B. Longtail Hedgehog</center 题目连接：http://www.codeforces.com/contest/615/problem/B DescriptionThis Christmas Santa gave Masha a magic picture... 阅读全文
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<center A. Bulbs</center 题目连接：http://www.codeforces.com/contest/615/problem/A DescriptionVasya wants to turn on Christmas lights consisting of m bul... 阅读全文