Queens problem is an old and well-known problem is a typical Example backtracking algorithms. The problem is that the nineteenth century, the famous mathematician Gauss in 1850: Under the 8X8 grid placed eight on the chess queen, so that it can not attack each other, that is, any two Queens can not be in the same row, same column or the same slash on, and asked how many kinds of facing France

八皇后.doc

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