poj2810 完美立方 http://poj.grids.cn/problem?id=2810 a的立方 = b的立方 + c的立方 + d的立方为完美立方等式。例如12的立方 = 6的立方 + 8的立方 + 10的立方 。编写一个程序，对任给的正整数N (N≤100)，寻找所有的四元组(a, b, c, d)，使得a的立方 = b的立方 + c的立方 + d的立方，其中a,b,c,d 大于 1, 小于等于N。 可直接运行-http://poj.grids.cn/problem?id=2810 a perfect cube poj2810 cubic = b c+ c a+ d of the cubic cubic cubic equation for the perfect. For example, 12 cubic cubic = 6+ 8+ 10 cubic cubic. The preparation of a program, for any given positive integer N (N ≤ 100), looking for all the four-tuple (a, b, c, d), makes a cube = b of the cubic+ c c+ d of the cube, in which a, b, c, d greater than 1, less than or equal to N. Can be directly run