What are some examples of vectors in C++?

Can you give me some examples of how to use vectors in C++?

Sure! In C++, a vector is a dynamic array that can grow in size. Here's a simple example:

#include <iostream>
#include <vector>

int main() {
    std::vector<int> numbers;
    numbers.push_back(10);
    numbers.push_back(20);
    numbers.push_back(30);

    for(int num : numbers) {
        std::cout << num << " ";
    }
    return 0;
}

What does the push_back function do?

The push_back function adds a new element to the end of the vector, increasing its size by one.

Can I access elements in a vector like an array?

Yes, you can access elements in a vector using the subscript operator, just like an array. For example, numbers[0] gives you the first element.

Are there any other useful functions for vectors?

Absolutely! Some useful functions include size(), clear(), and insert(), which help manage the vector's contents.