C program to read a one dimensional array, print sum of all elements along with inputted array elements using Dynamic Memory Allocation.

/*C program to read a one dimensional array, 
print sum of all elements along with inputted array 
elements using Dynamic Memory Allocation.*/
 
#include <stdio.h>
#include <stdlib.h>
 
int main()
{
    int *arr;
    int limit,i;
    int sum=0;
     
    printf("Enter total number of elements: ");
    scanf("%d",&limit);
     
    /*allocate memory for limit elements dynamically*/
    arr=(int*)malloc(limit*sizeof(int));
     
    if(arr==NULL)
    {
        printf("Insufficient Memory, Exiting... \n");
        return 0;
    }
     
    printf("Enter %d elements:\n",limit);
    for(i=0; i<limit; i++)
    {
        printf("Enter element %3d: ",i+1);
        scanf("%d",(arr+i));
        /*calculate sum*/
        sum=sum + *(arr+i);
    }
     
    printf("Array elements are:");
    for(i=0; i<limit; i++)
        printf("%3d ",*(arr+i));
     
     
    printf("\nSum of all elements: %d\n",sum);
     
    return 0;    
}

    Enter total number of elements: 5
    Enter 5 elements:
    Enter element 1: 11
    Enter element 2: 22
    Enter element 3: 33
    Enter element 4: 44
    Enter element 5: 55
    Array elements are: 11 22 33 44 55
    Sum of all elements: 165