摘要：
Time limit: 30.000 seconds限时30.000秒Problem问题There was once a 3 by 3 by 3 cube built of 27 smaller cubes. It has fallen apart into seven pieces:写曾经有一个3x3x3的立方块，由27个小立方块构成。它被切分为了如下七个碎片：Figure 1: The seven pieces that once formed a cube图1：组成立方体的七块碎片The seven pieces can be assembled in many ways to agai 阅读全文
