C语言题目判断某一范围之内的素数并求和

Question

1. 

   
   救命，在线等挺急的！！！

Answer 1

#include <stdio.h>
#include <math.h>
int main()
{
    int i,j,count = 0,sum = 0;
    int m,n;

    printf("m,n=");
    scanf("%d,%d",&m,&n);

    if(m>n)
    {
        m = m+n;
        n = m-n;
        m = m-n;
    }
    for(i=m;i<n+1;i++)
    {
        for(j=2;j<n+1;j++)
        {
            if(i%j==0)
            {
                count++;
            }
        }
        if(count==1)
        {
            printf("%d ",i);
            count = 0;
            sum += i;
        }
        else
        {
            count = 0;
        }
    }
    printf("\nsum = %d\n",sum);
}