Dataford
Interview QuestionsInterview GuidesExperiencesMock InterviewsPricing
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 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
Build my plan
CodeSignal Screening
00:00
5 left

CodeSignal Screening

MediumPython

Problem

How would you approach the CodeSignal screening questions you are given?

For this coding exercise, represent each question as [start, end, score] and select non-overlapping questions with the maximum total score. Return that maximum score.

Input and Output

questions is a list of intervals. A question ending at time t may be followed by one starting at t. Return an integer.

Constraints

  • 0 <= questions.length <= 1000
  • Each question has the form [start, end, score]
  • 0 <= start < end <= 10^9
  • 0 <= score <= 10^6
  • Questions may be provided in any order

Function Signature

def approach_codesignal_questions(questions):
Interviewer

Your question is CodeSignal Screening. 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.