there's no problems with comparing characters in the strings.

Не совсем верное решение.. Если сравнивать в строке будет не правильный вывод. Нужно сравнивать в Int. Не ужели только я заметил, меня вообще возмутило сравнение в str. И как прошло тесты такое решение?

Just now learned I can iterate using .join without 'for'. Thanks!

best solution
runs the second fastest in benchmarking.

masterclass

If I'm not mistaken, I think it compares the ascii or unicode number for it. '4' in ascii would be int 52 and '5' would be int 53, '6' is int 54 and so forth so anything below int 53, put a '0' and anything above put a '1'

wowza

One of my favorite jokes: If you have a problem and you think regex is the solution, now you have two problems.

Nice solution.

terrible

intresting it just compiled all the 4-5 lines of code to a one liner (but, i'm being honest here it can be optimised)...
REGARDLESS, GOOD JOB

Great job, I decided as well.

wtf🤯

Nice dude I spent so much time on this problem

n>0 is treated as 1 if True. when passed to sum() is the same as doing sum(1 if n>0...). Althoug I've read somewhere it's not good practice to use booleans as integers since you are violating some principle. Can't recall which one now.