How do I use the standard stack in C++?

How do I use the standard stack in C++?

To use the standard stack in C++, you need to include the <stack> header and use the std::stack class.

Can you give me an example of how to push and pop elements?

Sure! Here's a simple example:

#include <iostream>
#include <stack>

int main() {
    std::stack<int> myStack;
    myStack.push(10);
    myStack.push(20);
    std::cout << 'Top element: ' << myStack.top() << std::endl;
    myStack.pop();
    std::cout << 'Top element after pop: ' << myStack.top() << std::endl;
    return 0;
}

What happens if I try to pop from an empty stack?

If you try to pop from an empty stack, it will lead to undefined behavior. It's a good practice to check if the stack is empty using myStack.empty() before popping.

Are there any other important functions I should know about?

Yes! Besides push and pop, you should also know about top(), empty(), and size() to manage your stack effectively.