Problem 172. Test if a Number is a Palindrome without using any String Operations

Created by @bmtran (Bryant Tran)

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Solution Stats

663 Solutions
214 Solvers

Last Solution submitted on Jul 30, 2020

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Freddy on 22 Mar 2012

Nice expression for the usage test. Maybe one can add function "dec2base", cause the return type is a String.

Christian Schröder on 15 Jul 2019

The problem description should mention that dec2base isn't allowed either.

Solution Comments

Solution 320090

1 Comment

1 Comment

Paul Berglund on 17 Sep 2013

This will fail to detect certain palindromes which contain zero e.g. 10101 however the test suite doesn't (yet) contain any such.

Solution 51938

1 Comment

1 Comment

Nikolai on 26 Feb 2012

There's something strange with the Cody test suites today...

Problem Recent Solvers214

Problem Tags

number palindrome powers of 10