MergeArrays.cpp

#include <iostream>

using namespace std;

void mergeArrays(int arr1[], int arr2[], int array1Size, int array2Size){

    cout << "First array: " << endl;
    for(int i = 0; i < array1Size; i++) cout << arr1[i] << endl;
    cout << "Second array: " << endl;
    for(int j = 0; j < array2Size; j++) cout << arr1[j] << endl;  
    
    int resultSize = array1Size + array2Size;
    int resultArray[resultSize];
    
    for(int i = 0; i < array1Size; i++) resultArray[i] = arr1[i];
    for(int j = 0; j < array2Size; j++) resultArray[array1Size + j] = arr2[j];

    cout << "After merging: " << endl;
    for(int k = 0; k < resultSize; k++) cout << resultArray[k] << endl;

}

int main()
{
    int numbers1[] = {3,4,5,2,2,4,5,7,9};
    int size1 = sizeof(numbers1) / sizeof(numbers1[0]);

    int numbers2[] = {2,78,86,5,9,9,21,2};
    int size2 = sizeof(numbers2) / sizeof(numbers2[0]);

    mergeArrays(numbers1, numbers2, size1,size2);
    return 0;
}