FixedBuffer Class Template

#include <iostream>
using namespace std;

template<typename T, size_t N>
class FixedBuffer {
private:
	// your code here
    T data[N];
    size_t index;

public:
    FixedBuffer() : index(0) {}

    void push(T v)
    {
        if (index < N)
        {
            data[index++] = v;
        }
    }

    size_t size() const {
        return index;
    }

    T operator[](size_t i) const {
        return data[i];
    }

};

int main() {
   int n;
   cin >> n;
   FixedBuffer<int, 10> buf;  // max 10 elements
   for (int i = 0; i < n; i++) {
       int v;
       cin >> v;
       buf.push(v);
   }
   cout << "Buffer size: " << buf.size() << "\n";
   for (size_t i = 0; i < buf.size(); i++) {
       cout << buf[i] << " ";
   }
   cout << "\n";
   return 0;
}