Stacks

#include<bits/stdc++.h>
using namespace std;

int main(){
    stack<int>st;
    st.push(5); //5
    st.push(1); //1,5
    st.push(3); //3,1,5

    cout<<"Top element right now : "<<st.top()<<endl; //3
    int a = st.top();
    st.pop();
    cout<<"We have just poped : "<<a<<endl;
    cout<<"Top element right now : "<<st.top()<<endl; //1

    //To see all the elements of stack

    while(st.size()!=0){
        cout<<st.top()<<" ";
        st.pop();
    }

}