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

VirtualBox-OSE-1.3.8,开源项目，比Vmware还快的虚拟机，丝毫不逊色于它。GNU GPL V2。可以迅速还原到莫个系统状态。可以在里面学习病毒技术，操作系统等。（文件其实是.tar.bz2的，gz重压费力又不太省空间）。-VirtualBox - OSE - 1.3.8, PC, Vmware faster than the virtual machine, no way inferior to it. GNU GPL V2. Can be quickly reduced

模拟退火算法来源于固体退火原理，将固体加温至充分高，再让其徐徐冷却，加温时，固体内部粒子随温升变为无序状，内能增大，而徐徐冷却时粒子渐趋有序，在每个温度都达到平衡态，最后在常温时达到基态，内能减为最小。(The simulated annealing algorithm derived from the principle of solid annealing, heating the solid to a sufficiently high, let it slowly cooling, he