数独回溯算法破解源代码

回溯算法破解数独游戏，能计算所有可行解，源代码有注释可直接运行，请在d盘下建立nine.txt文件并初始化{2,0,7,0,0,0,0,0,0}, {0,0,1,3,2,0,0,0,0}, {0,0,0,0,0,0,9,4,0}, {4,0,0,8,0,0,0,0,0}, {9,5,0,0,0,0,0,0,0}, {0,0,0,7,0,0,0,0,3}, {0,0,8,0,0,0,0,0,1}, {6,0,0,0,0,0,0,0,0}, {0,0,0,0,4,0,2,0,0}类似形式，c/c++编写，此代码仅供学习交流使用，谢谢。