3.1.2.2 for_each - part II

//<problem chapter="2" section="2" slide="7" problem="1" title="Set - iterators">
#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

void squares(int & value)
{
	cout << value * value << " ";
}

struct Squares
{
	void operator()(int & value) //change argument to const int & value for set
	{
		cout << value * value << " ";
	}
};

int main()
{
	vector<int>v1 = { 3, 5, 6, 8, 9 };
	for_each(v1.begin(), v1.end(), squares);
	cout << endl;

	for_each(v1.rbegin(), v1.rend(), Squares());
	cout << endl;
	system("pause");
	return 0;
}