#include<stdio.h>
/*
对任给的正整数N (N≤100),寻找所有的四元组(a, b, c, d),使得a3 = b3 + c3 + d3,其中1<a, b, c, d ≤N。
暴力就完事了。
*/
int main()
{
int N, a ,s, d, f;
scanf("%d", &N);
for (a = 2; a <= N; ++a)
for (s = 2; s <= a; ++s)
for (d = s; d <= a; ++d)
for (f = d; f <= a; ++f)
if (a * a * a == f * f * f + s * s * s + d * d * d)
printf("Cube = %d, Triple = (%d,%d,%d)\n", a, s, d, f);
return 0;
}
《NOJ1007 完美立方》有1个想法