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
Anagrams Grouping
00:00
5 left

Anagrams Grouping

MediumPython

Problem

Group the words from a given list that are anagrams of each other, e.g. ["mat","tam","cute","beat","eatb","teab","ateb"] -> [["mat","tam"],["cute"],["beat","eatb","teab","ateb"]]

Asked in the Technical Round 1 stage.

Implement group_anagrams(words). The input is a list of lowercase strings. Return a list of groups, where each group contains words with identical character counts. Preserve the order of groups by each group's first appearance and preserve word order within each group.

Function signature

def group_anagrams(words):

Input and output

  • Input: words, a list of lowercase strings.
  • Output: a list of lists containing the grouped words.

Constraints

  • 1 <= len(words) <= 5000
  • 1 <= len(word) <= 100
  • Words contain only lowercase English letters

Function Signature

def group_anagrams(words):
Interviewer

Your question is Anagrams Grouping. 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.