FixedBuffer Class Template

#include <iostream>
using namespace std;

template<typename T, size_t N>
class FixedBuffer {
    private:
        T data[N]; 
        size_t count=0; 
    public:


	// your code here
    void push(T n){
        if (count < n){
            data[count++] = n; 
        }
    }

    size_t size() const {
        return count; 
    }

    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;
}
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Input

3 10 20 30

Expected Output

Buffer size: 3 10 20 30