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Description我们知道，在编程中，我们时常需要考虑到时间复杂度，特别是对于循环的部分。例如，如果代码中出现for(i=1;iint c[2001][2001];void init(){int n, m;c[0][0] = 1;for(n = 1; n <= 2000; n++){ c[n][... 阅读全文
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DescriptionThe GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular... 阅读全文
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DescriptionA ring is composed of n (even number) circles as shown in diagram. Put natural numbersinto each circle separately, and the sum of numbers i... 阅读全文
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Description在一个给定形状的棋盘（形状可能是不规则的）上面摆放棋子，棋子没有区别。要求摆放时任意的两个棋子不能放在棋盘中的同一行或者同一列，请编程求解对于给定形状和大小的棋盘，摆放k个棋子的所有可行的摆放方案C。Input输入含有多组测试数据。每组数据的第一行是两个正整数，n k，用一个空... 阅读全文
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DescriptionThere is a piece of paper in front of Tom, its length and width are integer. Tom knows the area of this paper, he wants to know the minimum... 阅读全文
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DescriptionExamine thecheckerboard below and note that the six checkers are arranged on the board so that one and only one is placed in each row and e... 阅读全文
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DescriptionAndrewid the Android is a galaxy-famous detective. In his free time he likes to think about strings containing zeros and ones.Once he thoug... 阅读全文