Question

How to check if a string is a palindrome ignoring case and non-alphanumeric characters in Scala

Answer 1

object PalindromeChecker {
  def isPalindrome(s: String): Boolean = {
    // Remove non-alphanumeric characters and convert to lowercase
    val normalized = s.replaceAll("[^a-zA-Z0-9]", "").toLowerCase
    println(normalized)

    // Check if the string is equal to its reverse
    normalized == normalized.reverse
  }

  def main(args: Array[String]): Unit = {
    val s = "+^-Ab#c!D 50...#  05*()dcB[]A##@!$"
    
    println(isPalindrome(s))
  }
}


 
 
/*
run:
  
abcd5005dcba
true
  
*/

 

 

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