CP1250 猜数魔术

我的做法：

#include <stdio.h>
int Magic(int m);
int main()
{
    int m, ret;
    printf("Input a sum:");
    scanf("%d", &m);
    ret = Magic(m);
    if (ret != 1)
    {
        printf("The sum you calculated is wrong!\n");
    }
    return 0;
}
int Magic(int m)
{
    int a, b, c, n;
    for (a = 1; a < 9; a++)
    {
        for (b = 1; b < 9; b++)
        {
            for (c = 1; c < 9; c++)
            {
                n = 122 * a + 212 * b + 221 * c;//本质上是五种组合加在一起
                if (m == n)
                {
                    printf("The number is %d\n", 100 * a + 10 * b + c);
                    return 1;
                }
            }
        }
    }
    return 0;
}