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
Experiences
Practice
Mock InterviewsTimed interview simulations with feedbackCoaching1:1 coaching with people at your target companiesSuccess 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
Build my plan
Compare Two JSON Structures
00:00
5 left

Compare Two JSON Structures

MediumPython

Problem

OpenX services exchange nested JSON payloads for configuration and ad-serving workflows. Implement a function that returns True when two JSON-compatible Python values represent the same structure and values, and False otherwise.

Object key order must not matter. Array order must matter, and arrays must contain the same values in the same positions. JSON numbers are compared by numeric value, so 1 and 1.0 are considered equal. Do not serialize the inputs to compare them.

Formal Specification

Implement compare_json(a, b):

  • Input: a and b, each a valid JSON-compatible Python value: None, bool, int, float, str, list, or dict with string keys.
  • Output: A boolean indicating structural equality.
  • Nested objects and arrays may contain any valid JSON-compatible values.

Constraints

  • Each input contains at most 10^4 total values
  • Maximum nesting depth is 100
  • Inputs are valid JSON-compatible values
  • Dictionary keys are strings

Function Signature

def compare_json(a, b):
Interviewer

Your question is Compare Two JSON Structures. 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.
CodePython 3
Sign up free to run your codeLog inLn 2
Run your code to see test output here.