def rate_f(movies):
if len(dictionary[movies]) == 0:
return True
def film_in_dictionary(movies):
if movies in dictionary:
return True
else:
return False
def average(movies):
mean = 0
for key2 in dictionary[movies].keys():
mean += dictionary[movies][key2]
print(f'{movies} средняя оценка: {mean / len(dictionary[movies])}')
dictionary = {}
while True:
command = input('Введите команду: ')
if command != 'exit' and command != 'list' and command != 'add' and command != \
'delete' and command != 'rate' and command != 'find':
print('Error')
continue
if command == 'exit':
break
if command == 'list':
for key in dictionary.keys():
if rate_f(key):
print(f'{key} не оценивался')
else:
average(key)
continue
film = input('Введите название фильма: ')
if command == 'add':
if film_in_dictionary(film):
print('Error')
else:
dictionary[film] = {}
elif command == 'delete':
if film in dictionary:
del dictionary[film]
else:
print('Error')
elif command == 'rate':
name = input('Имя пользователя: ')
rate = float(input('Оценка: '))
if 0 < rate <= 10:
dictionary[film][name] = rate
else:
print('Error')
elif command == 'find':
if rate_f(film):
continue
for name, rate in dictionary[film].items():
print(f'{name} поставил оценку: {rate}')
average(film)
dictionary = {}
while True:
command = input('Введите команду: ')
if command != 'exit' and command != 'list' and command != 'add' and command != 'delete' and command != 'rate' and command != 'find':
print('Error')
continue
if command == 'exit':
break
if command == 'list':
for key in dictionary.keys():
average = 0
if len(dictionary[key]) == 0:
print(f'Фильм {key} не оценивался')
else:
for key1 in dictionary[key].keys():
average += dictionary[key][key1]
print(f'{key} средняя оценка: {average / len(dictionary[key])}')
continue
film = input('Введите название фильма: ')
if command == 'add':
if film in dictionary:
print('Error')
else:
dictionary[film] = {}
elif command == 'delete':
if film in dictionary:
del dictionary[film]
else:
print('Error')
elif command == 'rate':
name = input('Имя пользователя: ')
rate = float(input('Оценка: '))
if 0 < rate <= 10:
dictionary[film][name] = rate
else:
print('Error')
elif command == 'find':
if len(dictionary[film]) == 0:
print('Фильм не оценивался')
continue
for name, rate in dictionary[film].items():
print(f'{name} поставил оценку: {rate}')
average = 0
for key in dictionary[film].keys():
average += dictionary[film][key]
print(f'Средняя оценка: {average / len(dictionary[film])}')
K = 48 * 40 * 64 = 122880 шт
i = 8 бит
I - ?
I = K * i = 122880 * 8 бит = 983040.0 бит
983040.0 бит = 122880.0 байт = 120 Кбайт