Write a program in basic C++ to merge two integer arrays into a third array with

Question

Write a program in basic C++ to merge two integer arrays into a third array with alternate elements from the first and second array respectively. Your program should do the following:

a. Input size of 2 arrays

b. Input the array elements

c. Write a loop structure to copy elements into a third array in an alternate fashion

d. Print the merged array

Note: If one array is extinguished, continue to copy the remaining elements of the other array

Example:

size1 = 3

size2 = 4

array1 = {2,3,5}

array2 = {1,8,3,0}

array3 = {2,1,3,8,5,3,0}

output 2138530

Explanation / Answer

#include<iostream>

#include<time.h>

using namespace std;

int main() {

int arr1[3] = {1,2,3};

int arr2[6] = {4,5,6,7,8,9};

int len1 = 3;

int len2 = 4;

cout<<"Enter size 1: ";

cin>>len1;

cout<<"Enter size 2: ";

cin>>len2;

cout<<"Enter array 1: ";

for (int i=0; i<len1; i++) {

cin>>arr1[i];

}

cout<<"Enter array 2: ";

for (int i=0; i<len2; i++) {

cin>>arr2[i];

}

int len = len1+len2;

int *arr = (int *)malloc(sizeof(int)*(len));

int i=0;

int i1=0, i2=0;

while (i<len) {

if (i1 < len1 || i2 >= len2) {

arr[i++] = arr1[i1++];

}

if (i2 < len2 || i1 >= len1) {

arr[i++] = arr2[i2++];

}

}

cout<<"Merged array: ";

for (int i=0; i<len; i++) {

cout<<arr[i]<<", ";

}

cout<<" ";

return 0;

}

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