杭电acm1094 A+B for Input-Output Practice (VI)

#include <stdio.h>
int main()
{
 int N,a,i,s;
 while(scanf("%d",&N)!=EOF)
 {s=0;
     for(i=0;i<N;i++)
     {
         scanf("%d",&a);
         s=s+a;
     }printf("%d\n",s);
 } 
 
    return 0;
}