算法设计:著名的n后问题:在nXn的棋盘上放彼此不受攻击的n个皇后,按国际象棋的规则,任何2个皇后不在同一行或同一列或同一斜线上. 本算法才用回朔法来解决.-algorithm design : n after the famous question : In nXn put on the chessboard of each other against attack n empress, according to the international rules of chess, any