This content originally appeared on DEV Community and was authored by Mahmoud EL-kariouny
Palindrome
level of challenge 4/10
A string is a palindrome when it is the same
when read backwards.
For example:
the string "bob" is a palindrome So is "abba".
But the string "abcd" is not a palindrome, because "abcd" != "dcba".
Write a function named palindrome that takes a single string as its parameter.
Your function should return True if the string is a palindrome, and False otherwise.
My solution
def palindrome(string):
pal_string = list( string.casefold() )
rev_string = list( reversed(pal_string) )
if pal_string == rev_string:
return True
else:
return False
print(palindrome("aba"))
Another solution
def palindrome(string):
while len(string) > 1:
head = string[0]
tail = string[-1]
string = string[1:-1]
if head != tail:
return False
return True
def palindrome(string):
if len(string) < 2:
return True
return string[0] == string[-1] and palindrome(string[1:-1])
def palindrome(string):
return string == string[::-1]
I hope this challenge improve python skills 🧐😎
This content originally appeared on DEV Community and was authored by Mahmoud EL-kariouny
Mahmoud EL-kariouny | Sciencx (2021-11-22T00:26:05+00:00) Python challenge_11. Retrieved from https://www.scien.cx/2021/11/22/python-challenge_11/
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