What are some examples of dynamic array usage in programming?

What are some examples of dynamic array usage in programming?

Dynamic arrays are versatile data structures that can grow and shrink in size. For example, in languages like Python, lists are dynamic arrays that can hold varying numbers of elements. You can append items, remove them, and even slice them.

Can you give me a specific example in Python?

Sure! In Python, you can create a dynamic array using a list. For instance:

my_list = []  # Create an empty list
my_list.append(1)  # Add an element
my_list.append(2)
print(my_list)  # Output: [1, 2]
my_list.remove(1)  # Remove an element
print(my_list)  # Output: [2]

What about in C++?

In C++, you can use the std::vector class, which is a dynamic array. Here's an example:

#include <iostream>
#include <vector>

int main() {
    std::vector<int> myVector;
    myVector.push_back(1);  // Add an element
    myVector.push_back(2);
    std::cout << myVector[0];  // Output: 1
    myVector.pop_back();  // Remove the last element
    std::cout << myVector.size();  // Output: 1
}