#include<iostream>
using namespace std;
template<class T=int,int size=5>
    class array
    {
        T var[size];
            int i;
        public:
        array()
        {
            for(i=0;i<size;i++)
                var[i]=i;
        }
        void display()
        {
            for(i=0;i<size;i++)
            cout<<var[i]<<"\n";
            cout<<"\nSize of variable:";
            cout<<sizeof(var);
                     
        }
    };
int main()
{
    array<int> a1;
    array<float,10> a2;
    cout<<"using int\n";
    a1.display();
    cout<<"\nusing float\n";
    a2.display();
        return 0;
}