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  1. Prepare
  2. Algorithms
  3. Strings
  4. Palindrome Index
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Palindrome Index

  • patrickgao2020
     + 2 comments

    My Python solution doesn't pass many of the testcases! Can anyone help?

    def ispalindrome(s):
    if s[::-1] == s:
        return True
    return False

def palindromeIndex(s):
    s = list(s)
    if ispalindrome(s):
        return -1
    for i in range(len(s) // 2 + 1):
        if ispalindrome(s[:i] + s[i + 1:]):
            return i
        if ispalindrome(s[:len(s) - i - 1] + s[len(s) - i:]):
            return len(s) - i - 1
    return -1