Write a function is_odd_length_palindrome that takes a string s and returns True if s is a palindrome of odd length, and False otherwise.
Answer (2)
The function is_odd_length_palindrome checks if a string is a palindrome of odd length by comparing the string with its reverse and verifying the length. It returns True if both conditions are met, and False otherwise. An example includes checking the string "madam", which returns True as it meets both criteria.
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To write a function is_odd_length_palindrome that checks if a given string s is a palindrome with an odd length, you can follow these steps:
Understand what a palindrome is : A palindrome is a string that reads the same backward as forward, like 'radar' or 'level'.
Check the length of the string : For the palindrome to be of odd length, its length should not be divisible by 2.
Implement the palindrome check : Compare the string with its reverse to check if it is a palindrome.
Here's the step-by-step implementation in Python:
Define the function
def is_odd_length_palindrome(s): # Check if the length of the string is odd if len(s) % 2 == 0: return False # Check if the string is a palindrome is_palindrome = (s == s[::-1]) # Return True only if both conditions are met return is_palindrome
Example usage
print(is_odd_length_palindrome('radar')) # Output: True print(is_odd_length_palindrome('hello')) # Output: False
Explanation :
The len(s) % 2 == 0 part checks if the length of s is odd. If it's even, the function directly returns False.
s == s[::-1] compares the string with its reverse (achieved using slicing) to see if it's a palindrome.
If both conditions are satisfied (odd length and palindrome), the function returns True. Otherwise, it returns False.
This solution efficiently checks both conditions—ensuring that only odd-length palindromes are returned as True. This approach is understandable for someone learning basic programming and string manipulation in high school.
