Заказ на Python
pip install ordered-set
from ordered_set import OrderedSet
letters = OrderedSet('abracadabra')
print(letters) # {'a', 'b', 'r', 'c', 'd'}
Vishnu
pip install ordered-set
from ordered_set import OrderedSet
letters = OrderedSet('abracadabra')
print(letters) # {'a', 'b', 'r', 'c', 'd'}