Program to show all operations of stack

#include<iostream.h>

#include<conio.h>

void main()

{

int stack[5],ch;

int n=0;

char choice;

clrscr();

do

{

cout<<"\n\n";

cout<<"\nenter the choice::";

cout<<"\n1. push";

cout<<"\n2. pop";

cout<<"\n3. view";

cin>>ch;

if(ch==1)

{

if(n==5)

cout<<"\nstack overflow!!";

else

{

int ele;

cout<<"\nenter the element to be pushed::";

cin>>ele;

stack[n]=ele;

n++;

}

}

else

if(ch==2)

{

if(n==-1)

cout<<"\nstack underflow";

else

{

n--;

cout<<"\nElement pop";

}

}

else

if(ch==3)

{

for(int i=0; i<n;i++)

cout<<stack[i];

}

else

cout<<"\ninvalid choice";

 cout<<"\nDo you wish to continue\n";

 cin>>choice;

 }

 while(choice=='y'|| choice=='Y');

 }