Nothing_227的博客

给定一个 n*nn∗n 的棋盘，棋盘中有一些位置不能放皇后。现在要向棋盘中放入 nn 个黑皇后和 nn 个白皇后，使任意的两个黑皇后都不在同一行、同一列或同一条对角线上，任意的两个白皇后都不在同一行、同一列或同一条对角线上。问总共有多少种放法？nn 小于等于 88。输入格式　　输入的第一行为一个整数 nn，表示棋盘的大小。　　接下来 nn 行，每行 nn 个 00 或 11 的整数，如果一个整数为...

The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid that divides th...

The GeoSurvComp geologic survey company is responsible for detecting underground oil deposits. GeoSurvComp works with one large rectangular region of land at a time, and creates a grid that divides th...