Send Feedback

Palindrome Number

Total Accepted: 7332 Total Submissions: 25453 My Submissions

Determine whether an integer is a palindrome. Do this without extra space.

click to show spoilers.

Some hints:

Could negative integers be palindromes? (ie, -1)

If you are thinking of converting the integer to string, note the restriction of using extra space.

You could also try reversing an integer. However, if you have solved the problem "Reverse Integer", you know that the reversed integer might overflow. How would you handle such case?

There is a more generic way of solving this problem.

Discuss


You have not signed in, cannot submit your code.
Submit failed, try again please.
You have attempted to resubmit too soon. Please resubmit in a moment.

Send Feedback