#include<iostream>
using namespace std;

void foo(int i);

//Global variables
int i = 0;
int j = 5;

int main()
{
	foo(i);
	int j = 10;  //Local variable with a scope of the function

	if(j == 10)
	{
		int j = 0;  //Local variable with a block scope {} 
		cout << "i inside if clause is " << i << endl;
		cout << "j inside if clause is " << j << endl;
		cout << endl;
	}

	cout << "i inside main() is " << i << endl;
	cout << "j inside main() is " << j << endl;

	return 0;
}

void foo(int i)  //Parameter variable i is a local variable with a scope within the function 
{
	int j = 10; //Local automatic variable.
	i = 5;  
    
	cout << "i inside foo() is " << i << endl;
	cout << "j inside foo() is " << j << endl;
	cout << endl;
}