problem_009.cpp

//Write a menu driven program to implement stack
#include<iostream>
using namespace std;
#define SIZE 5
int stack[SIZE];
int top=-1;
bool isEmpty(){
    if(top<SIZE){
        return true;
    }
    return false;
}
void push(int value){
    if(isEmpty()){
        top=top+1;
        stack[top]=value;
    }else{
        cout<<"Stack is full!!!\n";
    }
}
void pop(){
    if(top== -1){
        cout<<"Stack is Empty!!!!\n";
    }else{
        top=top-1;
    }
}
void display(){
    for(int i=top;i>=0;i--){
        cout<<stack[i]<<endl;
    }
}
int main(){
    int chose,val;
    int x=1;
    while(x){
        cout<<"1. Push\n2. Pop\n3. Display\n";
        cout<<"Enter your chose:";
        cin>>chose;
        switch(chose){
            case 1:
                cout<<"Enter Value:";
                cin>> val;
                push(val);
                break;
            case 2:
                pop();
                break;
            case 3:
                display();
                x=0;
                break;
            default:
                cout<<"Enter right option"<<endl;
        }
    } 
    return 0;
}