cprogram.cpp

#include <iostream>

using namespace std;
int stack[100],n=100,top=-1;
void push(int val){
    if(top>=n-1)
    cout<<"Stack Overflow"<<endl;
    else{
        top++;
        stack[top]=val;
    }
}
    void pop(){
        if(top<=-1)
        cout<<"Stack underflow"<<endl;
        else{
            cout<<"The popped element is"<<stack[top]<<endl;
            top--;
        }
    }
    void display(){
      if (top>=0)  {
          cout<<"Stack elements are:";
          for(int i=top;i>=0;i++)
          cout<<stack[i]<<" ";
          cout<<endl;
      } else
      cout<<"Stack is empty";
    } 
    
    int main() {
        int ch, val;
        cout<<"1)Push in stack"<<endl;
        cout<<"2)Pop from stack"<<endl;
        cout<<"3)Display stack"<<endl;
        cout<<"4)Exit"<<endl;
        do{
            cout<<"Enter choice: "<<endl;
            cin>>ch;
            switch(ch){
                case 1:{
                    cout<<"Enter value to be pushed:"<<endl;
                    cin>>val;
                    push(val);
                    break;
                }
                case 2:{
                    pop();
                    break;
                }
                case 3:{
                    display();
                    break;
                }
                case 4:{
                    cout<<"Exit"<<endl;
                    break;
                }
                default:{
                    cout<<"Invalid Choice"<<endl;
                }
            }
        }while(ch!=4);
    }