#include<iostream>
#include<time.h>
using namespace std;

//coupling vs cohesion

//cohesion - how closely related are the contents of a group.
//	You want strong cohesion
//coupling - how dependent functions are on one another
//You want loose coupling
void fun2( int y = 9 , int z = 5, int x = time(NULL) );

//default arguments  the function has multiple signatures
void fun( int x = 4 )
{
	cout << x * 8 << endl;
}

void main()
{
	int i = 9;
	fun(i);
	fun(8);
	fun2(4,5);
	fun2(4,5,6);

} 

void fun2( int y , int z, int x )
{
	cout << x  << endl;
}