Grokking the Coding Interview: Patterns for Coding Questions
Ask Author
Back to course home

0% completed

Valid Palindrome II (easy)

Problem Statement

Given string s, determine whether it's possible to make a given string palindrome by removing at most one character.

A palindrome is a word or phrase that reads the same backward as forward.


  1. Example 1:

    • Input: "racecar"
    • Expected Output: true
    • Justification: The string is already a palindrome, so no removals are needed.
  2. Example 2:

    • Input: "abccdba"
    • Expected Output: true
    • Justification: Removing the character 'd' forms the palindrome "abccba".
  3. Example 3:

    • Input: "abcdef"
    • Expected Output:




Like the course? Get enrolled and start learning!