Big Tech

Dell interview questions

Grouped by topic, sorted Easy → Medium → Hard, then by LeetCode ID. Click a problem to open it on LeetCode; the chapter column links to the handbook chapter that covers it.

Problems
10
Easy
5
Medium
4
Hard
1
Mapped to chapter
5

Array

4 problems

Easy 2

1Two Sum★ also at:AmazonAMDApple Also at 47 moreByteDanceCiscoeBayGoogleIntelMetaMicrosoftNVIDIAQualcommAdobeAirbnbAtlassianAutodeskBloombergDelhiveryDoorDashDropboxEpic SystemsExpediaFlipkartFractal AnalyticsFreshworksIntuitJane StreetJioJPMorganJuspayLyftMeeshoMorgan StanleyOlaPayPalPaytmPhonePeRobloxSAPSplunkSpotifySwiggyTargetToastTwilioVisaVMwareWalmart Global TechYelpZoho EasyChapter
1413Minimum Value to Get Positive Step by Step Sumalso at:GoogleMicrosoftSwiggy Easy—

Medium 2

49Group Anagramsalso at:AmazonAppleCisco Also at 36 moreeBayGoogleMetaMicrosoftNVIDIATeslaAdobeAtlassianAutodeskBloombergCitadelDocuSignDoorDashExpediaFreshworksGoldman SachsIntuitJioJPMorganMorgan StanleyMyntraNianticOktaPayPalPhonePeSalesforceSAPSnapTargetToastTwilioVMwareWalmart Global TechWayfairYelpZoho MediumChapter
53Maximum Subarrayalso at:AmazonAppleByteDance Also at 29 moreCiscoeBayGoogleIntelMetaMicrosoftTeslaAdobeAirbnbArista NetworksAtlassianAutodeskBloombergFractal AnalyticsFreshworksGoldman SachsJioLinkedInMeeshoOlaPayPalPhonePeSAPSnapSwiggyTargetVisaZomatoZoom MediumChapter

Misc

6 problems

Easy 3

20Valid Parentheses★ also at:AmazonCiscoeBay Also at 36 moreGoogleIntelMetaMicrosoftNetflixNVIDIAQualcommTeslaAdobeAirbnbAutodeskBloombergCoinDCXCrowdStrikeEpic SystemsFlipkartFreshworksGrowwIntuitJane StreetJioLinkedInLyftPayPalPaytmPhonePeRobloxSAPSplunkSpotifySwiggyTargetToastTwilioVMwareX (Twitter) EasyChapter
196Delete Duplicate Emailsalso at:GoogleMetaMicrosoft Also at 1 moreBloomberg Easy—
696Count Binary Substringsalso at:AmazonGoogleMeta Also at 4 moreMicrosoftBloombergJPMorganMeesho Easy—

Medium 2

3Longest Substring Without Repeating Charactersalso at:AmazonAMDApple Also at 45 moreByteDanceCiscoeBayGoogleIntelMetaMicrosoftNetflixNVIDIAQualcommTeslaAdobeAirtelArista NetworksAtlassianBloombergDocuSignDream11DuolingoFlipkartFractal AnalyticsFreshworksIntuitJPMorganJuspayLinkedInMorgan StanleyMyntraPayPalPaytmRakutenRipplingRobloxSalesforceSAPSpotifySwiggyToastUrban CompanyVisaVMwareYelpZohoZomatoZoom MediumChapter
1328Break a Palindromealso at:VMware Medium—

Hard 1

185Department Top Three Salariesalso at:AmazonAdobeBloomberg Also at 1 moreFractal Analytics Hard—