Marketplace & Mobility

Airbnb 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
50
Easy
8
Medium
25
Hard
17
Mapped to chapter
21

Array

30 problems

Easy 3

1Two Sum★ also at:DoorDashExpediaLyft Also at 47 moreTargetToastYelpAdobeAmazonAMDAppleAtlassianAutodeskBloombergByteDanceCiscoDelhiveryDellDropboxeBayEpic SystemsFlipkartFractal AnalyticsFreshworksGoogleIntelIntuitJane StreetJioJPMorganJuspayMeeshoMetaMicrosoftMorgan StanleyNVIDIAOlaPayPalPaytmPhonePeQualcommRobloxSAPSplunkSpotifySwiggyTwilioVisaVMwareWalmart Global TechZoho EasyChapter
108Convert Sorted Array to Binary Search Treealso at:AppleGoogleMeta Easy—
136Single Number★ also at:AdobeAmazonBloomberg Also at 5 moreCiscoGoogleMetaPalantirQualcomm EasyChapter

Medium 14

39Combination Sumalso at:SamsaraAmazonBloomberg Also at 10 moreChimeCitadeleBayGoogleMetaNianticPayPalSnapVMwareZomato MediumChapter
53Maximum Subarrayalso at:TargetAdobeAmazon Also at 29 moreAppleArista NetworksAtlassianAutodeskBloombergByteDanceCiscoDelleBayFractal AnalyticsFreshworksGoldman SachsGoogleIntelJioLinkedInMeeshoMetaMicrosoftOlaPayPalPhonePeSAPSnapSwiggyTeslaVisaZomatoZoom MediumChapter
198House Robber★ also at:ExpediaSamsaraAdobe Also at 24 moreAmazonBloombergByteDanceCars24CiscoCitadelCleartripCure.fitDatabricksDatadogeBayFlipkartGoogleIntuitMetaMicrosoftNianticNVIDIAOYOPayPalPhonePeTeslaWalmart Global TechZoom MediumChapter
221Maximal Squarealso at:AdobeAmazonCitadel Also at 10 moreFlipkartGoogleMicrosoftOYOPayPalPhonePeSAPVMwareWiseZomato Medium—
251Flatten 2D Vectoralso at:LyftX (Twitter) Medium—
348Design Tic-Tac-Toealso at:AmazonAtlassianDatabricks Also at 4 moreMicrosoftTeslaTwo SigmaWise MediumChapter
638Shopping OffersMediumChapter
713Subarray Product Less Than Kalso at:AmazonAppleBloomberg Also at 4 moreGoogleMetaWalmart Global TechWise Medium—
755Pour WaterMedium—
1058Minimize Rounding Error to Meet TargetMedium—
1091Shortest Path in Binary Matrixalso at:AmazonBloombergGoogle Also at 2 moreIntuitMeta MediumChapter
1257Smallest Common RegionMedium—
2043Simple Bank Systemalso at:Capital OneCoinbaseDropbox Also at 4 moreMetaOktaPhonePeStripe Medium—
3076Shortest Uncommon Substring in an ArrayMedium—

Hard 13

42Trapping Rain Wateralso at:LyftRakutenAdobe Also at 34 moreAmazonAtlassianBloombergByteDanceCitadelCrowdStrikeDocuSigneBayFlipkartGoldman SachsGoogleGrowwInMobiIntelIntuitMetaMicrosoftMyntraNaviNVIDIAOpenAIPayPalPaytmPhonePeQualcommRobloxSAPSnowflakeSwiggyTeslaUrban CompanyWalmart Global TechX (Twitter)Zoho HardChapter
68Text Justificationalso at:LyftSamsaraAmazon Also at 15 moreAtlassianAutodeskBloombergCapital OneCoinbaseDatabricksGoogleMicrosoftMongoDBNetflixPayPalRobinhoodRobloxTwilioVisa Hard—
212Word Search IIalso at:DoorDashInstacartUber Also at 10 moreAmazonBlockByteDanceCiscoGoogleMetaMicrosoftSnowflakeTwo SigmaZoom HardChapter
269Alien Dictionaryalso at:UberAmazonBloomberg Also at 7 moreCitadelGoogleMetaSnapVMwareX (Twitter)Zoom HardChapter
336Palindrome PairsHard—
631Design Excel Sum Formulaalso at:CitadelOpenAIRippling Hard—
759Employee Free Timealso at:CitadelGoogleIntuit Also at 2 moreMicrosoftRoblox Hard—
827Making A Large Islandalso at:DoorDashUberAmazon Also at 6 moreGoogleLinkedInMetaMicrosoftSnapSnowflake HardChapter
864Shortest Path to Get All Keysalso at:UberPhonePe Hard—
1235Maximum Profit in Job Schedulingalso at:DoorDashAirtelAmazon Also at 13 moreBloombergByteDanceDatabricksDocuSignFlipkartGoogleMeeshoMicrosoftOYOPayPalPhonePeSnowflakeSwiggy Hard—
1284Minimum Number of Flips to Convert Binary Matrix to Zero MatrixHard—
1298Maximum Candies You Can Get from BoxesHard—
1928Minimum Cost to Reach Destination in Timealso at:Microsoft HardChapter

Hash Table

7 problems

Easy 2

160Intersection of Two Linked Listsalso at:AmazonByteDanceeBay Also at 4 moreFreshworksGoogleMetaTiger Analytics Easy—
202Happy Numberalso at:AdobeAmazonBloomberg Also at 9 moreCiscoeBayGoogleMetaMicrosoftPayPalSnowflakeSwiggyX (Twitter) EasyChapter

Medium 3

981Time Based Key-Value Storealso at:InstacartLyftUber Also at 14 moreAmazonAppleBloombergCars24CoinbaseCrowdStrikeDatabricksGoogleMicrosoftMongoDBNetflixOpenAIPalantirVMware Medium—
1166Design File Systemalso at:DoorDashAmazonAtlassian Also at 1 moreCoinbase Medium—
1554Strings Differ by One CharacterMedium—

Hard 2

76Minimum Window Substringalso at:DeliverooLyftAdobe Also at 16 moreAmazonBloombergByteDanceCiscoeBayGoldman SachsGoogleInMobiLinkedInMeeshoMetaMicrosoftSAPSnapSwiggyVMware HardChapter
432All O`one Data Structurealso at:AmazonAppleAtlassian Also at 1 moreLinkedIn HardChapter

Math

5 problems

Easy 1

415Add Stringsalso at:WayfairAdobeAmazon Also at 6 moreBloombergByteDanceGoogleJane StreetMetaVisa Easy—

Medium 3

227Basic Calculator IIalso at:DoorDashExpediaUber Also at 9 moreAmazonAppleBloombergeBayGoogleMetaRedditSnapTesla MediumChapter
1017Convert to Base -2Medium—
1041Robot Bounded In Circlealso at:Zscaler Medium—

Hard 1

829Consecutive Numbers Sumalso at:MicrosoftVMware Hard—

String

4 problems

Easy 1

20Valid Parentheses★ also at:LyftTargetToast Also at 36 moreAdobeAmazonAutodeskBloombergCiscoCoinDCXCrowdStrikeDelleBayEpic SystemsFlipkartFreshworksGoogleGrowwIntelIntuitJane StreetJioLinkedInMetaMicrosoftNetflixNVIDIAPayPalPaytmPhonePeQualcommRobloxSAPSplunkSpotifySwiggyTeslaTwilioVMwareX (Twitter) EasyChapter

Medium 2

385Mini Parseralso at:Amazon Medium—
751IP to CIDRalso at:DatabricksOpenAI Medium—

Hard 1

727Minimum Window Subsequencealso at:eBay Hard—

Misc

4 problems

Easy 1

190Reverse Bitsalso at:AmazonBloombergGoogle Also at 1 moreQualcomm Easy—

Medium 3

2Add Two Numbersalso at:DoorDashLyftAdobe Also at 12 moreAmazonAppleBloombergByteDanceCiscoeBayGoogleJane StreetMetaMicrosoftSAPVMware MediumChapter
787Cheapest Flights Within K Stops★ also at:UberAmazonApple Also at 8 moreBloombergeBayFlipkartGoogleInMobiMicrosoftSnapStripe MediumChapter
1557Minimum Number of Vertices to Reach All Nodesalso at:Google MediumChapter