/*This C Program calculates the largest of two numbers in a given Array. First it accepts an array, then compares the elements and finds which is the largest two element in a given array.*/

/*
 * C program to read in four integer numbers into an array and find the
 * average of largest two of the given numbers without sorting the array.
 * The program should output the given four numbers and the average.
 */
#include <stdio.h>
#define MAX 4

void main()
{
    int array[MAX], i, largest1, largest2, temp;
    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");
    /*  assume first element of array is the first larges t*/
    largest1 = array[0];
    /*  assume first element of array is the second largest */
    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);
}

/*
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