You only have free questions left (including this one).

But it doesn't have to end here! Sign up for the 7-day coding interview crash course and you'll get a free Interview Cake problem every week.

Write an efficient function that checks whether any permutation of an input string is a palindrome.

You can assume the input string only contains lowercase letters.

Examples:

  • "civic" should return True
  • "ivicc" should return True
  • "civil" should return False
  • "livci" should return False

"But 'ivicc' isn't a palindrome!"

If you had this thought, read the question again carefully. We're asking if any permutation of the string is a palindrome. Spend some extra time ensuring you fully understand the question before starting. Jumping in with a flawed understanding of the problem doesn't look good in an interview.

We can do this in time.

Start your free trial!

Log in or sign up with one click to get immediate access to free mock interview questions

Where do I enter my password?

Actually, we don't support password-based login. Never have. Just the OAuth methods above. Why?

  1. It's easy and quick. No "reset password" flow. No password to forget.
  2. It lets us avoid storing passwords that hackers could access and use to try to log into our users' email or bank accounts.
  3. It makes it harder for one person to share a paid Interview Cake account with multiple people.

Wanna review this one again later? Or do you feel like you got it all?

Mark as done Pin for review later

Reset editor

Powered by qualified.io

. . .