遗传算法解决八皇后问题。八皇后问题是一个NP问题，它的目标是把国际象棋的八个皇后摆在8X8的棋盘上，使得没有一个皇后能俘获任何别的皇后，即每一行每一列仅有一个皇后，每条对角线上至多有一个皇后。-Genetic algorithms to solve the eight queens problem. Eight queens problem is an NP problem, and its goal is to place the chess queen on the eight 8X8 ch