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我用图论方法做的。。慢的哭，估计是最后几页了。。。。。。

Posted by talenth1 at 2010-11-28 20:09:46 on Problem 1753 
每个节点可以转移得到的16个节点，用一个假邻接表记录（就是不用动态内存，不然更慢），然后进行一下spfa求他和全白还有全黑的最短路。。。
5616K 797MS，可以看出，内存和耗时都是比较巨大的。。。。
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