题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=1220 做题思路：先在n^n^n个单位立方体中取2个（即一对），然后减去有公共点为4的立方体对数，即为所求。 总的对数：n*n*n的立方体可以分成n*n*n个单位立方体，所以一共有C（n*n*n，2）对 ...
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其他好文 时间：
2018-02-24 22:00:29
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161
Problem Description
Cowl is good at solving math problems. One day a friend asked him such a question: You are given a cube whose edge length is N, it is cut by the planes that was paralleled to its side planes into N * N * N unit cubes. Two unit cubes may...
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其他好文 时间：
2015-03-12 15:08:38
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216
Cube
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 1372 Accepted Submission(s): 1085
Problem Description
Cowl is good at solvi...
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其他好文 时间：
2014-08-28 09:41:19
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174
