How to Join Vectors in C++

◀ Previous Next ▶

How to Join Vectors in C++ ?

Answer

In C++, you can join vectors by using the `insert()` method or the `insert()` function with iterators.

✐ Examples

1 Join Vectors using insert() method

In this example,

We define two vectors, vec1 and vec2, with different elements.
We use the insert() method to insert all elements of vec2 into vec1.

C++ Program

#include <iostream>
#include <vector>

int main() {
    std::vector<int> vec1 = {1, 2, 3};
    std::vector<int> vec2 = {4, 5, 6};

    // Join vectors using insert() method
    vec1.insert(vec1.end(), vec2.begin(), vec2.end());

    // Print the combined vector
    for (int i : vec1) {
        std::cout << i << " ";
    }
    std::cout << std::endl;
    return 0;
}

Output

1 2 3 4 5 6

2 Join Vectors using insert() function with iterators

In this example,

We define two vectors, vec1 and vec2, with different elements.
We use the insert() function with iterators to insert all elements of vec2 into vec1.

C++ Program

#include <iostream>
#include <vector>

int main() {
    std::vector<int> vec1 = {1, 2, 3};
    std::vector<int> vec2 = {4, 5, 6};

    // Join vectors using insert() function with iterators
    vec1.insert(vec1.end(), vec2.begin(), vec2.end());

    // Print the combined vector
    for (int i : vec1) {
        std::cout << i << " ";
    }
    std::cout << std::endl;
    return 0;
}

Output

1 2 3 4 5 6

Summary

In this tutorial, we learned How to Join Vectors in C++ language with well detailed examples.

◀ Previous Next ▶

C++ Tutorials

C++ How-Tos

How to Join Vectors in C++

How to Join Vectors in C++ ?

Answer

✐ Examples

1 Join Vectors using insert() method

C++ Program

Output

2 Join Vectors using insert() function with iterators

C++ Program

Output

Summary

More C++ Vectors Tutorials