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Description在N*N的方格棋盘放置了N个皇后，使得它们不相互攻击（即任意2个皇后不允许处在同一排，同一列，也不允许处在与棋盘边框成45角的斜线上。你的任务是，对于给定的N，求出有多少种合法的放置方法。Input共有若干行，每行一个正整数N≤10，表示棋盘和皇后的数量；如果N=0，表示结束。... 阅读全文
posted @ 2015-07-26 19:15
无解大神
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DescriptionLittle Valentine liked playing with binary trees very much. Her favorite game was constructing randomly looking binary trees with capital l... 阅读全文
posted @ 2015-07-26 18:49
无解大神
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Description某部队进行新兵队列训练，将新兵从一开始按顺序依次编号，并排成一行横队，训练的规则如下：从头开始一至二报数，凡报到二的出列，剩下的向小序号方向靠拢，再从头开始进行一至三报数，凡报到三的出列，剩下的向小序号方向靠拢，继续从头开始进行一至二报数。。。，以后从头开始轮流进行一至二报数、... 阅读全文
posted @ 2015-07-26 18:47
无解大神
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The 15-puzzle has been around for over 100 years; even if you don't know it by that name, you've seen it. It is constructed with 15 sliding tiles, eac... 阅读全文
posted @ 2015-07-26 18:44
无解大神
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Perhaps you all have heard the mythical story about Tower of Hanoi (The details of this story is not required to solve this problem): “There is a towe... 阅读全文
posted @ 2015-07-26 18:42
无解大神
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Time Limit:1000MSMemory Limit:10000KTotal Submissions:3721Accepted:1290DescriptionA math instructor is too lazy to grade a question in the exam papers... 阅读全文
posted @ 2015-07-26 18:38
无解大神
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DescriptionOn February, 30thnstudents came in the Center for Training Olympiad Programmers (CTOP) of the Berland State University. They came one by on... 阅读全文
posted @ 2015-07-26 18:33
无解大神
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DescriptionA histogram is a polygon composed of a sequence of rectangles aligned at a common base line. The rectangles have equal widths but may have ... 阅读全文
posted @ 2015-07-26 18:26
无解大神
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DescriptionMike has many friends. Here are nine of them: Alice, Bob, Carol, Dave, Eve, Frank, Gloria, Henry and Irene.Mike is so skillful that he can ... 阅读全文
posted @ 2015-07-26 18:22
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