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How many Fibs? Description Recall the definition of the Fibonacci numbers: f1 := 1 f2 := 2 fn := f n-1 + f n-2 (n>=3) Given two numbers a and b, calcu 阅读全文
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Chess Problem Description Alice and Bob are playing a special chess game on an n × 20 chessboard. There are several chesses on the chessboard. They ca 阅读全文
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Arrange Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 674 Accepted Submission(s): 236 Problem 阅读全文
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Divided Land Problem Description It’s time to fight the local despots and redistribute the land. There is a rectangular piece of land granted from the 阅读全文
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Problem F Problem Description There are n points in a geometrical plane. If there exists a rectangle whose four vertices are among those points and ev 阅读全文
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Problem C Problem Description Definite an operation work(Q,x) as sequence Q from the first number on,keep the top x numbers and delete followed x numb 阅读全文