c++ functions dynamic vector

#include <iostream>
#include <vector>

// Function to create and return a dynamic vector
std::vector<int> createDynamicVector(int n) {
    std::vector<int> dynamicVector; // Declare a vector of integers

    for (int i = 1; i <= n; ++i) {
        dynamicVector.push_back(i  10); // Add elements (i  10) to the vector
    }

    return dynamicVector; // Return the populated vector
}

int main() {
    int size = 5; // Define the size of the dynamic vector

    std::vector<int> result = createDynamicVector(size); // Create a dynamic vector of size 'size'

    std::cout << "Dynamic Vector elements:" << std::endl;

    // Display the elements of the dynamic vector
    for (int i = 0; i < result.size(); ++i) {
        std::cout << result[i] << " ";
    }

    return 0;
}

1. #include <iostream> and #include <vector>: Include necessary libraries for input/output and vector functionalities.

2. std::vector<int> createDynamicVector(int n): Declare a function named createDynamicVector that takes an integer n as an argument and returns a vector of integers.

3. std::vector<int> dynamicVector;: Declare an empty vector called dynamicVector capable of holding integers.

4. for (int i = 1; i <= n; ++i) { dynamicVector.push_back(i 10); }: Populate the dynamicVector with elements (multiples of 10) from 10 to n10 using a for loop.

5. return dynamicVector;: Return the populated vector from the createDynamicVector function.

6. int main() { ... }: Define the main function.

7. int size = 5;: Initialize an integer variable size with a value of 5.

8. std::vector<int> result = createDynamicVector(size);: Call the createDynamicVector function passing size as an argument and store the returned vector in result.

9. std::cout << "Dynamic Vector elements:" << std::endl;: Display a message indicating the following output will be the elements of the dynamic vector.

10. for (int i = 0; i < result.size(); ++i) { std::cout << result[i] << " "; }: Iterate through the elements of the result vector and print each element followed by a space.

11. return 0;: Indicates the end of the main() function and the successful execution of the program.