pair<int,int> minmax(vector<int> tablica, int rozmiar) {
	int min = tablica[0];
	int max = tablica[0];
	for (int i = 0; i < rozmiar; i++) {
		if (min > tablica[i])
			min = tablica[i];
		if (max < tablica[i])
			max = tablica[i];
	}
	pair<int,int> minmax = make_pair(min,max);
	return minmax;
}