Opakovanie: 
	Ako sa zapise ntica zlozena z 1 polozky?
	Aky je rozdiel medzi mnozinou a zoznamom?
	Ake operacie mozeme robit so slovnikom?
	Z coho sa sklada slovnik? Naco je dobry? Ako ulozit pre kluc, hodnotu?

Triedenie - sorted(): 
	Klasicke hodnoty, strinky,...
		sorted([1,4,2]) 		 		--> [1,2,4]
		sorted([1,4,2], reverse = True) --> [4,2,1]
	Ntice,listy - najprv podla 1. zlozky, 2. ...
		sorted([(3,), (1,'a'), (0,'c'), (0,'b')]) --> [(0,b),(0,c),(1,'a'),(3,)]
	Ntice podla 2. polozky - urcime co je kluc (to podla coho sa triedi):
		sorted(l, key = lambda x: x[1]) 
	Ntice podla 2. polozky  a 1. polozky :
		sorted(l, key = lambda x: x[1], x[0]) 


0. Mnozina a Slovniky - spustite si 8.3 a 8.4.
	https://docs.python.org/3/tutorial/datastructures.html
	https://docs.python.org/2/library/sets.html
	https://docs.python.org/2/library/stdtypes.html#mapping-types-dict
	Vytvorenie:
		list = [1,2,3]
		set = {1,2,3}
		dict = {"Fero":1, "Jozo":2, "Karol":3}
	Comprehension:
		list = [x for x in something]
		set  = {x for x in something}
		dict = {x:x*x for x in something}
	Prechod:
		dic = {"a":1, "b":2}
		for i in something: # something = list, set, dict (kluce!) 
			print(i)
		
		for key in dic.keys(): # to iste ako for key in dict
			print(key)
		
		for key,value in dic.items(): 
			print(key, value)

https://www.fi.muni.cz/IB111/sbirka/08-datove_struktury.html
1. Sbirka 8.4.1 unique_check(temp) za pouzitia mnozin: (DU !!! tu len diskusia)
	Ako by to vyzeralo bez pouzitia mnozin? Co je efektivnejsie?

2. Pomocou mnozin nahodne usporiadajte zoznam. (DU !!! tu len diskusia)
	suffle([1,2,3,4]) --> [3,1,4,2]

3. Vygenerujte nahodny zoznam k prvkov z intervalu <a,b> kde kazda hodnota bude prave raz. 
	rand_sample(k, a = 0, b = 10)

4. Sbirka 8.3.1 Morzeovka:
	encode(text), decode(text)

5. Sbirka 8.3.2 freq_analysis(text):
	- vypise pocet jednotlivych pismen utriedeny vzostupne.