Question

大学c语言程序设计题第一题

Answer 1

# include <stdio.h>

int main(void)
{
    int n, i, sum;
    for (n=6; n<=1000; ++n)
    {   
        sum=0;                                                                        
        for (i=1; i<n; ++i)
        {   
            if (0 == n % i)
            {   
                sum += i;
            }   
        }   
        if (sum == n)
        {   
            printf("%4d", sum);
        }   
    }   
    printf("\n");
}