Dataford
Interview QuestionsInterview GuidesExperiencesCoaching
New
Pricing
Get started
Dataford
Popular roles
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Browse
Browse All RolesEvery role hub, from analyst to MLBrowse All CompaniesCompany-specific interview loopsAll Interview GuidesThe full guide library
Top questions by role
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Top questions by skill
SQLPythonStatisticsMachine LearningA/B TestingSystem DesignGenerative AIProduct SenseMetricsBehavioral
Browse all questions →Try a mock interview
ExperiencesCoaching
New
Practice
Mock InterviewsTimed interview simulations with feedbackSuccess PathYour 6-week structured planModulesCurated lessons by topicWebinarsTalks from ex-Big Tech data leadsPlaygroundA free-form scratch editor
Learn
BlogInterview strategy and career adviceTech Job Market ReportHiring trends across data and AI rolesFor UniversitiesDataford for career centersAbout DatafordWho we are and how we build
Pricing
Get started
Reverse Number and Palindrome Coding
00:00
5 left

Reverse Number and Palindrome Coding

EasyPython

Problem

Write a program to reverse a number and check whether it is a palindrome.

Implement reverse_and_check(number) using arithmetic operations rather than converting the number to a string. Return a two-element tuple containing the reversed integer and a Boolean indicating whether the original number reads identically forward and backward.

Input and Output

  • Input: one non-negative integer number.
  • Output: (reversed_number, is_palindrome).

A number ending in zero loses that zero when reversed. Treat 0 and every single-digit number as palindromes.

Constraints

  • 0 <= number <= 10^9
  • The input is an integer.
  • Do not convert the number to a string.

Function Signature

def reverse_and_check(number):
Interviewer

Your question is Reverse Number and Palindrome Coding. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

You need to log in / sign up to run or submit.
Code
Sign up free to run your codeLog inLn 2
Run your code to see test output here.