programming-examples/c/Arrays/C Program to Merge the Elements of 2 Sorted Array.c

/*
 * C Program to Merge the Elements of 2 Sorted Array
 */
#include <stdio.h>

void main()
{
    int array1[50], array2[50], array3[100], m, n, i, j, k = 0;
    printf("\n Enter size of array Array 1: ");
    scanf("%d", &m);
    printf("\n Enter sorted elements of array 1: \n");
    for (i = 0; i < m; i++)
        {
            scanf("%d", &array1[i]);
        }
    printf("\n Enter size of array 2: ");
    scanf("%d", &n);
    printf("\n Enter sorted elements of array 2: \n");
    for (i = 0; i < n; i++)
        {
            scanf("%d", &array2[i]);
        }
    i = 0;
    j = 0;
    while (i < m && j < n)
        {
            if (array1[i] < array2[j])
                {
                    array3[k] = array1[i];
                    i++;
                }
            else
                {
                    array3[k] = array2[j];
                    j++;
                }
            k++;
        }
    if (i >= m)
        {
            while (j < n)
                {
                    array3[k] = array2[j];
                    j++;
                    k++;
                }
        }
    if (j >= n)
        {
            while (i < m)
                {
                    array3[k] = array1[i];
                    i++;
                    k++;
                }
        }
    printf("\n After merging: \n");
    for (i = 0; i < m + n; i++)
        {
            printf("\n%d", array3[i]);
        }
}

/*

Enter size of array Array 1: 4

Enter sorted elements of array 1:
12
18
40
60

Enter size of array 2: 4

Enter sorted elements of array 2:
47
56
89
90

After merging:

12
18
40
47
56
60
89
90