Calculate Sum of Array Elements in C

Find Sum of Array Elements Program in C

Sum of all Array elements means add all array Elements. Suppose we have 4 Elements in array and we want to find there sum.
arr[0]=4
arr[1]=2
arr[2]=1
arr[3]=6
Sum off all above elements are
arr[0]+arr[1]+arr[2]+arr[3]=4+2+1+6=13

#include<stdio.h>
#include<conio.h>

 void main()
  {
   int arr[20],i,n,sum=0;
   clrscr();
   printf("How many elements you want to enter: ");
   scanf("%d",&n);
   printf("Enter any %d elements in Array: ",n);
   for(i=0;i<n;i++)
   {
   scanf("%d",&arr[i]);
   }
   printf("Sum of Array Elements: ");

   for(i=0;i<n;i++)
   {
    sum=sum+arr[i];
   }
   for(i=0;i<n;i++)
   {
   }
  printf("%d ",sum);
  getch();
  }

How many elements you want to enter : 5
Enter any 5 elements in Array: 
1 4 2 7 5
Sum of Array Elements: 19