C++ program to calculate area of rectangle

#include<conio.h>
#include<iostream>
#include<unistd.h>
using namespace std;
int main ()
{
int i;
    for(i=0;i<=100;i++)
{
cout<<"Loading......."<<i<<"%\r";
usleep(100000);
}
cout<<" DESIGNED BY:\n";
cout<<" MUHAMMAD REHAN ASGHAR\n";
int a;
int b;
cout<<"ENTER THE LENGHT\n";
cin>> a;
cout<<"ENTER THE WIDTH\n";
cin>> b;
int y;
y=a*b;
cout<<"AREA IS =\n";
cout<< y;
return 0;
}