Question

write a c program to find sum of elements in array by using pointers.??​

Answer 1

Here is source code of the C program to calculates the sum of array elements using pointer. The program is successfully compiled and tested using Turbo C compiler in windows environment. The program output is also shown below.

/*

* C program to read N integers and store them in an array A.

* Find the sum of all these elements using pointer.

*/

#include <stdio.h>

#include <malloc.h>

void main()

{

int i, n, sum = 0;

int *a;

printf("Enter the size of array A \n");

scanf("%d", &n);

a = (int *) malloc(n * sizeof(int));

printf("Enter Elements of First List \n");

for (i = 0; i < n; i++)

{

scanf("%d", a + i);

}

</* Compute the sum of all elements in the given array */

for (i = 0; i < n; i++)

{

sum = sum + *(a + i);

}

printf("Sum of all elements in array = %d\n", sum);

Answer 2

Answer:

#include <stdio.h>

#include <malloc.h>

 void main()

{

int i, n, sum = 0;

int *a;

       printf("Enter the size of array A \n");

scanf("%d", &n);

         a = (int *) malloc(n * sizeof(int));

         printf("Enter Elements of First List \n");

for (i = 0; i < n; i++)  

       {

 scanf("%d", a + i);

}

         </*  Compute the sum of all elements in the given array */

         for (i = 0; i < n; i++)

       {

 sum = sum + *(a + i);

}

         printf("Sum of all elements in array = %d\n", sum);

 }