Clean Phrase Palindrome
You can check a palindrome even inside a regular phrase with spaces, punctuation, and mixed letter case. Given a string s, consider only letters and digits, and ignore uppercase versus lowercase. Return True if the cleaned string reads the same forward and backward.
Примеры
Ввод
"A man a plan a canal Panama"Вывод
TrueВвод
"race a car"Вывод
FalseВвод
""Вывод
TrueНужно реализовать
def is_palindrome(s):
Теги
stringstwo-pointers
Prihláste sa, aby ste videli históriu odoslaní
Prihlásiť saPrihláste sa, aby ste mohli používať AI mentora
Prihlásiť saVisible tests
1
Input
"A man a plan a canal Panama"Expected
True2
Input
"race a car"Expected
False3
Input
""Expected
True4
Input
"Was it a car or a cat I saw?"Expected
True5
Input
"0P"Expected
False6
Input
"ab_a"Expected
TrueFocus radio
Paused · SomaFM · Fluid