#include <iostream> 
using namespace std; 
 
void f(int i);        
void f(int i, int j); 
void f(double k);     
 
int main() 
{ 
  f(10);     // call f(int) 
 
  f(10, 20); // call f(int, int) 
 
  f(12.23);  // call f(double) 
 
  return 0; 
} 
 
void f(int i) 
{ 
  cout << "In f(int), i is " << i << '\n'; 
} 
 
void f(int i, int j) 
{ 
  cout << "In f(int, int), i is " << i; 
  cout << ", j is " << j << '\n'; 
} 
 
void f(double k) 
{ 
  cout << "In f(double), k is " << k << '\n'; 
}