#include<iostream>
using namespace std;
int n, stack[n], top=-1;
void push(int value){
if(top>=n-1){
cout<<"Stack Overflow"<<endl;
}else{
top++;
stack[top] = value;
}
}
void pop(){
if(top<=-1){
cout<<"Stack Underflow"<<endl;
}else{
cout<<"The popped element is: "<<stack[top];
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!"<<endl;
}
}
int main(){
int n;
cout<<"Enter stack size: ";
cin>>n;
int choice, value;
cout<<"1. push"<<endl;
cout<<"2. pop"<<endl;
cout<<"3. display"<<endl;
cout<<"4. Exit"<<endl;
do{
cout<<"Enter your choice: "<<endl;
cin>>choice;
switch(choice){
case 1: cout<<"Enter your push value: ";
cin>>value;
push(value);
break;
case 2: pop();
break;
case 3: display();
break;
case 4: cout<<". . .Exit. . ."<<endl;
break;
default:
cout<<"Invalid choice!"<<endl;
}
}while(choice!=4);
return 0;
}
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