What is the output of the following C++ program?#include using namespace std; int f(int a, int b = 5) { return a * b; } int f(double a) { r…

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

#include <iostream>
using namespace std;
int f(int a, int b = 5) { return a * b; }
int f(double a) { return 7; }
int main() { cout << f(3) << f(2.5) << f(2, 3); }