C/C++ Program to find area of a square

//Program to find area of a square
#include<iostream>
using namespace std;
int main()
{
    int a,area;
    cout<<"\n enter the side of a square :";
    cin>>a;
    cout<<"\n Area of a square :"<<a*a<<endl;
    cout<<"\n Perimeter of square :"<<4*a<<endl;
return 0;
}