liste_python.py

parrot_list = ['non pinin', 'no more']
parrot_list.append("norwegian blue") #adauga la sfarsitul listei
for state in parrot_list:
	print('This parrot is ' + state)

odd = [1, 3, 5, 7]
even = [2, 4, 6, 8]
numbers = odd + even
numbers.sort() #sort nu creaza un obiect nou
print(numbers)
#poti pune direct print(sorted(numbers))  #creeaza un obj nou

#poti crea o lista asa:
#creezi o lista care sa contina literele pe rand
print(list("The lists are equal"))
literele = list("The lists are equal")
print(literele)

#DACA PUI = INTRE DOUA VARIABILE, APOI MODIFICI UNA DIN ELE, 
#VEI MODIFICA INDIRECT SI CEALALTA VARIABILA:
even = [2, 4, 6, 8]
another_even = even
another_even.sort(reverse= True) #sorteaza de la mare la mic
print(even) #am printat var INITIALA
		#dar rezultatul este tot 8,6,4,2

#aceste 2 variabile sunt IDENTICE:
#ps, nu confunda is cu ==
#is confirma ca sunt identice
# == confirma ca ele contin aceleasi valori
print(even is another_even)  #prints True

menu = []
menu.append(['salam', 'parizer', 'spam'])
menu.append(['banane', 'portocale', 'spam'])
menu.append(['biscuiti', 'ciocolata', 'ecler'])
#print(menu)
 
#cauta spam in fiecare sublista 
#si printeaza doar sublista fara spam
for meal in menu:
	if 'spam' not in meal: 
		#print(meal) #printeaza sublista
		for item in meal:
			print(item)	#printeaza elementele sublistei pe rand nou
			
list = []
list.insert(0, 5)
list.insert(1, 10)
list.insert(0, 6) #cand inserez 6 aici, nu il inlocuieste pe 5-ul pus mai sus
			#ci ii shifteaza pe 5 si pe 10 mai la 'dreapta'
print(list)  # prints [6,5,10]

list.remove(6) #sterge PRIMUL 6, nu pe toti
list.append(9)
list.append(1)
list.sort()
print(list)  #[1,5,9,10]
list.pop()  #daca nu ii dai numar, removes the last item
list.reverse()
print(list)	


"""Write a Python program to remove duplicates from a list of lists
Sample list : [[10, 20], [40], [30, 56, 25], [10, 20], [33], [40]]"""
lista_initiala = [[10, 20], [40], [30, 56, 25], [10, 20], [33], [40]]
rezultat = []
for i in lista_initiala:
	if i not in rezultat:
		rezultat.append(i)
print(rezultat)


#Write a Python program to sum all the items in a list.
lista5 = [2, 4, 6]
suma = 0
for i in lista5:
	suma += i
print(suma)


#Write a Python program to get the largest number from a list.
#R: sortezi lista si apoi [-1]
lista6 = [9, 7, 5, 2]
lista6.sort()
print(lista6[-1])

#varianta2
def max_num_in_list( list ):
    max = list[ 0 ]
    for a in list:
        if a > max:
            max = a
    return max
print(max_num_in_list([9, 7, 5, 2]))


#Return the smallest number from a list
lista7 = [3, 4, 1]
mic = lista7[0]
for i in lista7:
	if i < mic:
		mic = i
print(mic)


"""Write a Python program to COUNT the number of strings where the string length is 2 or more 
and the first and last character are same from a given list of strings. 
Sample List : ['abc', 'xyz', 'aba', '1221']
Expected Result : 2 """
#LA IF FOLOSESTI MIAU, NU LISTA8
#ASA ACCESEZI ELEMENTELE INDIVIDUALE DIN LISTA
lista8 = ["salam", "parizer", "papaya", "ciocolatac", "z"]
numaratoare = 0
for miau in lista8:
	if len(miau) > 1 and miau[0] == miau[-1]:
		numaratoare += 1
		print(numaratoare)


"""Write a Python program to get a list, sorted in increasing order by 
the last element in each tuple from a given list of non-empty tuples. 
Sample List : [(2, 5), (1, 2), (4, 4), (2, 3), (2, 1)]
Expected Result : [(2, 1), (1, 2), (2, 3), (4, 4), (2, 5)] """
lista_initiala = [(2, 5), (1, 2), (4, 4), (2, 3), (2, 1)]
print(type(lista_initiala)) #prints LIST
lista_initiala.sort()
print(lista_initiala)