Sum of the Array Elements using Pointer in c

Find the Largest Two Numbers in a given Array

#include 

#include 

#define max 4

void main()

{

    int array[max], i, largest1, largest2, temp;

    clrscr();

    printf("Enter %d integer numbers \n", max);

    for (i = 0; i < max; i++)

    {

        scanf("%d", &array[i]);

    }

    printf("Input interger are \n");

    for (i = 0; i < max; i++)

    {

      printf("%5d", array[i]);

    }

    printf("\n");

    largest1 = array[0];

    largest2 = array[1];

    if (largest1 < largest2)

    {

        temp = largest1;

        largest1 = largest2;

        largest2 = temp;

    }

    for (i = 2; i < 4; i++)

    {

        if (array[i] >= largest1)

        {

            largest2 = largest1;

            largest1 = array[i];

        }

        else if (array[i] > largest2)

        {

            largest2 = array[i];

        }

    }

    printf("n%d is the first largest \n", largest1);

    printf("%d is the second largest \n", largest2);

    printf("nAverage of %d and %d = %d \n", largest1, largest2,

(largest1 + largest2) / 2);

getch();

}

Output

Enter 4 integer numbers

80

23

79

58

Input interger are

80   23   79   58

80 is the first largest

79 is the second largest

Average of 80 and 79 = 79

Calculate the Sum of the Array Elements using Pointer

#include 

#include 

#include 

void main()

{

    int i, n, sum = 0;

    int *a;

    clrscr();

    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);

    }

    for (i = 0; i < n; i++)

    {

        sum = sum + *(a + i);

    }

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

getch();

}

Output

Enter the size of array A

5

Enter Elements of First List

4

9

10

56

100

Sum of all elements in array = 179