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DescriptionGerald got a very curious hexagon for his birthday. The boy found out that all the angles of the hexagon are equal to. Then he measured the... 阅读全文
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DescriptionThe Sky is Sprite.The Birds is Fly in the Sky.The Wind is Wonderful.Blew Throw the TreesTrees are Shaking, Leaves are Falling.Lovers Walk p... 阅读全文
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DescriptionTomorrow is contest day, Are you all ready?We have been training for 45 days, and all guys must be tired.But , you are so lucky comparing w... 阅读全文
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DescriptionThere is a hill with n holes around. The holes are signed from 0 to n-1.A rabbit must hide in one of the holes. A wolf searches the rabbit ... 阅读全文
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DescriptionSometimes some mathematical results are hard to believe. One of the common problems is the birthday paradox. Suppose you are in a party whe... 阅读全文
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N friends go to the local super market together. The probability of their buying something from themarket is p 1 ,p 2 ,p 3 ,...,p N respectively. Afte... 阅读全文
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Time Limit: 1000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 3667Accepted Submission(s): 2733Problem Descriptio... 阅读全文
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nparticipants of the competition were split intomteams in some manner so that each team has at least one participant. After the competition each pair ... 阅读全文
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nparticipants of the competition were split intomteams in some manner so that each team has at least one participant. After the competition each pair ... 阅读全文
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DescriptionYou probably have played the game "Throwing Balls into the Basket". It is a simple game. You have to throw a ball into a basket from a cert... 阅读全文