//testing

my code

#include<stdio.h>
int main()  
{
int i,n,sum=0; 
scanf("%d\n",&n);
   int arr[n];
  for (i=0;i<n;i++) 
    {
        scanf("%d",&arr[i]);
 
    
    
    
      sum=sum+arr[i];
    
    }
    printf("%d",sum);
    return 0;
}