#includeIn the above code example, we have created a stack of integers. Initially, we have pushed three elements into the stack i.e., 10, 20, and 30. Then, we have displayed the top element using the `top()` method. After that, we have used the `pop()` method to remove the top element from the stack. Finally, we have again displayed the top element using the `top()` method. This code uses the C++ Standard Template Library (STL) stack package. In conclusion, Stack pop is used for removing the topmost element of a stack data structure. We can implement it using various programming languages and packages, and in this case, we have used C++ and the STL stack package.#include using namespace std; int main() { stack st; st.push(10); st.push(20); st.push(30); cout << "Before popping top element: "; cout << st.top() << endl; st.pop(); cout << "After popping top element: "; cout << st.top() << endl; return 0; }