What is the output of the following C++ program?#include using namespace std; template void f(T a) { static int c = 0; c++; cout

What is the output of the following C++ program?

#include <iostream>
using namespace std;
template <class T> void f(T a) { static int c = 0; c++; cout << c; }
int main() { f(1); f(2); f(1.5); f('a'); f(3); }