Merge Two Arrays

Merge Two Arrays in C++ (5 Programs)

BeginnerTopic: Array Operations Programs
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C++ Merge Two Arrays Program

This program helps you to learn the fundamental structure and syntax of C++ programming.

Try This Code
#include <iostream>
using namespace std;

int main() {
    int arr1[] = {1, 2, 3};
    int arr2[] = {4, 5, 6};
    int n1 = 3, n2 = 3;
    
    int merged[n1 + n2];
    
    // Copy first array
    for (int i = 0; i < n1; i++) {
        merged[i] = arr1[i];
    }
    
    // Copy second array
    for (int i = 0; i < n2; i++) {
        merged[n1 + i] = arr2[i];
    }
    
    cout << "Merged array: ";
    for (int i = 0; i < n1 + n2; i++) {
        cout << merged[i] << " ";
    }
    cout << endl;
    
    return 0;
}
Output
Merged array: 1 2 3 4 5 6

Understanding Merge Two Arrays

This program demonstrates 5 different methods to merge two arrays: simple concatenation, using vectors, using copy() algorithm, using memcpy(), and using dynamic arrays.

Note: To write and run C++ programs, you need to set up the local environment on your computer. Refer to the complete article Setting up C++ Development Environment. If you do not want to set up the local environment on your computer, you can also use online IDE to write and run your C++ programs.

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