C语言 1.排序问题

用1,2,3……,9组成3个三位数abc,def和ghi,每个数字恰好使用一次,要求abc:def:ghi=1:2:3.输出所有解。

#include <stdio.h>
void result(int num, int &result_add, int &result_mul)
{
    int i, j, k;
    i = num / 100;
    j = num / 10 % 10;
    k = num % 10;
    result_add += i + j + k;
    result_mul *= i * j * k;
}
int main()
{
    int i, j, k;
    int result_add, result_mul;
    for(i = 123; i <=329; i++)
    {
        j = i * 2;
        k = i * 3;
        result_add = 0;
        result_mul = 1;
        result(i, result_add, result_mul);
        result(j, result_add, result_mul);
        result(k, result_add, result_mul);
        if(result_add == 45 && result_mul == 362880)
            printf("%d %d %d\n", i, j, k);
    }
    return 0;
}