使用层先算法还原魔方，已有初始状态 如想还原自己的魔方，必须把魔方状态加到源代码中。最后程序给出还原步，是用魔方通用语言表示的-first-use reduction algorithm Cube has initial state who wish to reinstate their Cube, Cube state must be added to the source code. Final procedure is reduced further, the Cube is the