4.1.11.1 Random shuffle operation

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
using namespace std;
int rng_function(int range)
{
	return std::rand() % range;
}

void print(const string & value)
{
	cout << value << " ";
}

int main()
{
	const unsigned RANDOM_SEED = 5;
	std::srand(RANDOM_SEED);
	vector<int> myvector;
	vector<string> cards;
	vector<string> card_names = { "A", "2", "3", "4" , "5", "6", "7", "8", "9", "10", "J", "Q", "K" };
	for (auto name : card_names)
	{
		//you can encode Spade, Heart, Diamond, Club as Unicode characters U+2660–2667
		cards.push_back(name + "S");
		cards.push_back(name + "H");
		cards.push_back(name + "D");
		cards.push_back(name + "C");
	}
	int n = 0;

	vector<vector<string>> players(4);
	n = cards.size();

	random_shuffle(cards.begin(), cards.end(),rng_function);

	for (auto i = cards.begin(); i != cards.begin() + (n/4); i++) {
		players.at(0).push_back(*i);
	}
	for (auto i = cards.begin()+(n/4); i != cards.begin() + (n/2); i++) {
		players.at(1).push_back(*i);
	}
	for (auto i = cards.begin()+(n/2); i != cards.begin() +(n-n/4); i++) {
		players.at(2).push_back(*i);
	}
	for (auto i = cards.begin()+(n-n/4); i != cards.end(); i++) {
		players.at(3).push_back(*i);
	}
	
	for (int i = 0; i < 4; i++) {
		for_each(players.at(i).begin(), players.at(i).end(), print);
		cout << endl;
		cout << endl;
	}
	

	system("pause");
	return 0;
}