poj1543

简单题

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <cstring>
using namespace std;

void work(int n)
{
    int a = n * n * n;
    for (int i = 2; ;i++)
    {
        int b = i * i * i;
        if (b * 3 > a)
            break;
        for (int j = i; ; j++)
        {
            int c = j * j * j;
            if (b + c * 2 > a)
                break;
            for (int k = j; ; k++)
            {
                int d = k * k * k;
                if (b + c + d > a)
                    break;
                if (b + c + d == a)
                    printf("Cube = %d, Triple = (%d,%d,%d)\n", n, i, j, k);
            }
        }
    }
}

int main()
{
    int n;
    scanf("%d", &n);
    for (int i = 1; i <= n; i++)
        work(i);
    return 0;
}