Note: (Restricted functionality due to obvious reasons!)
Minimal Code ( Raw-View ) :
#include<iostream.h>
#include<conio.h>
void main()
{
cout<<"This program gives you the graph of {x = y^2} : "<<endl;
cout<<"Enter the max value of y : ";
float x,y,i,t;
cin>>x;
for(i=x;i>=1; i--)
{
for(y=1; y<=i*i-1; y++)
{cout<<" ";}
cout<<"*"<<endl<<"|";}
for(t=1; t<=x*x; t++){cout<<"_";}
cout<<endl;
for(i=1;i<=x; i++)
{cout<<"|";
for(y=1; y<=i*i-1; y++)
{cout<<" ";}
cout<<"*"<<endl;}
}