Clean Palindrome

A palindrome reads the same forward and backward after ignoring anything that should not count. Given a string s, consider only letters and digits, and ignore uppercase versus lowercase. Return True if the cleaned string is a palindrome.

Примеры

Ввод
"A man, a plan, a canal: Panama"
Вывод
True
Ввод
"race a car"
Вывод
False
Ввод
" "
Вывод
True

Нужно реализовать

def is_palindrome(s: str) -> bool:

Теги

stringstwo-pointers
PostgreSQLv16

Koodin suorituksen tulos näkyy tässä

Tests12
Visible tests
Piilotettu testi 7
Piilotettu testi 8
Piilotettu testi 9
Piilotettu testi 10
Piilotettu testi 11
Piilotettu testi 12

They run when you press "Submit" — your whole solution is checked against them so you can't hard-code answers for the visible cases.

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