dma_calloc.c

#include<stdio.h>
#include<stdlib.h>
int main()
{
    int n,i,*ptr,sum;
    printf("Enter number of elements: ");
    scanf("%d",&n);
    ptr=(int*)calloc(n,sizeof(int));
    if(ptr==NULL)
    {
        printf("Not enough space");
        exit(0);
    }
    printf("Enter elements of array: \n");
    for(i=0;i<n;i++)
    {
        scanf("%d",&ptr[i]);
        sum=sum+ptr[i];
    }
    printf("Sum is: %d",sum);
    free(ptr);
    return 0;
}