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Problem description A Ministry for Defense sent a general to inspect the Super Secret Military Squad under the command of the Colonel SuperDuper. Havi 阅读全文
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Problem description Shapur was an extremely gifted student. He was great at everything including Combinatorics, Algebra, Number Theory, Geometry, Calc 阅读全文
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Problem description There is a game called "I Wanna Be the Guy", consisting of n levels. Little X and his friend Little Y are addicted to the game. Ea 阅读全文
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Problem description A family consisting of father bear, mother bear and son bear owns three cars. Father bear can climb into the largest car and he li 阅读全文