Marketplace & Mobility

Uber 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
3
Medium
29
Hard
18
Mapped to chapter
20

Array

30 problems

Easy 3

121Best Time to Buy and Sell Stockalso at:InstacartLyftRakuten Also at 39 moreTargetToastAdobeAirtelAmazonAppleAtlassianBloombergByteDanceCiscoCitadelCoinbaseFlipkartGoldman SachsGoogleGrowwIntuitJioJPMorganMetaMicrosoftMorgan StanleyMyntraNetflixNVIDIAOlaPayPalPhonePeRobinhoodSAPSnapSwiggyTeslaTiger AnalyticsTwo SigmaVisaVMwareWalmart Global TechZoho Easy—
977Squares of a Sorted Arrayalso at:InstacartAdobeAmazon Also at 11 moreBloombergByteDanceCrowdStrikeDuolingoeBayGoogleMetaMicrosoftSplunkVMwareWise Easy—
1475Final Prices With a Special Discount in a Shopalso at:AmazonDream11Google Also at 1 moreMicrosoft Easy—

Medium 16

56Merge Intervalsalso at:DoorDashExpediaInstacart Also at 46 moreTargetToastYelpAdobeAirtelAmazonAMDAppleAtlassianAutodeskBloombergByteDanceCars24CiscoCitadelCrowdStrikeDatabricksDocuSignDropboxeBayFlipkartGoldman SachsGoogleJuspayMetaMicrosoftMorgan StanleyNetflixOktaOYOPalantirPayPalPhonePeQualcommRazorpayRipplingRobloxSAPSnapTeslaVisaVMwareWalmart Global TechX (Twitter)ZohoZomato MediumChapter
79Word Search★ also at:LyftAdobeAmazon Also at 17 moreArista NetworksAtlassianBloombergByteDanceCiscoCitadelEpic SystemsFreshworksGoogleMetaMicrosoftMorgan StanleyNetflixPayPalPaytmSnapVMware MediumChapter
139Word Breakalso at:TargetToastAdobe Also at 17 moreAmazonArista NetworksAutodeskBlockBloombergByteDanceCleartripDiscordeBayGoogleIntuitMetaMicrosoftMongoDBNetflixTwilioVMware MediumChapter
162Find Peak Elementalso at:LyftAmazonBloomberg Also at 14 moreByteDanceDatabricksDocuSignFlipkartFreshworksGoogleGrowwMetaMicrosoftPayPalRedditSnapUrban CompanyVMware MediumChapter
347Top K Frequent Elementsalso at:TargetToastYelp Also at 27 moreAmazonAMDAppleArista NetworksAtlassianBloombergByteDanceDocuSignDropboxeBayGoldman SachsGoogleInfo Edge (Naukri)IntuitMetaMicrosoftNetflixNVIDIAPayPalRipplingRobinhoodSnapSnowflakeSpotifyTeslaTiger AnalyticsVMware MediumChapter
362Design Hit Counter★ also at:DeliverooAppleAtlassian Also at 9 moreBloombergCloudflareDatabricksDropboxGoogleMetaOpenAIRedditRoblox MediumChapter
399Evaluate Divisionalso at:AdobeAmazonBloomberg Also at 9 moreCitadelFlipkartGoogleMicrosoftPhonePeRipplingSnapStripeUrban Company Medium—
427Construct Quad Treealso at:Palantir Medium—
692Top K Frequent Wordsalso at:YelpAdobeAmazon Also at 7 moreBloombergGoogleNetflixPayPalRipplingRobinhoodVMware MediumChapter
752Open the Lockalso at:AmazonCars24Citadel Also at 3 moreDiscordLinkedInMicrosoft MediumChapter
994Rotting Oranges★ also at:DoorDashRakutenAdobe Also at 23 moreAmazonBloombergChimeCitadelCleartripDream11eBayFlipkartGoogleIntuitLinkedInMetaMicrosoftMyntraOpenAIOYOPayPalPhonePeRobloxSalesforceUrban CompanyZohoZoom MediumChapter
1101The Earliest Moment When Everyone Become Friendsalso at:GoogleNiantic Medium—
1423Maximum Points You Can Obtain from Cardsalso at:AmazonFlipkartMicrosoft Also at 1 morePhonePe Medium—
1428Leftmost Column with at Least a Onealso at:SAP Medium—
1966Binary Searchable Numbers in an Unsorted Arrayalso at:Microsoft Medium—
3629Minimum Jumps to Reach End via Prime Teleportationalso at:AmazonGoogle Medium—

Hard 11

212Word Search IIalso at:AirbnbDoorDashInstacart Also at 10 moreAmazonBlockByteDanceCiscoGoogleMetaMicrosoftSnowflakeTwo SigmaZoom HardChapter
305Number of Islands IIalso at:DeliverooDropboxGoogle Also at 2 morePhonePeSnap HardChapter
410Split Array Largest Sumalso at:AmazonBloombergGoogle Also at 4 moreMetaMicrosoftPhonePePinterest Hard—
67924 Gamealso at:Google Hard—
719Find K-th Smallest Pair Distancealso at:Amazon Hard—
827Making A Large Islandalso at:AirbnbDoorDashAmazon Also at 6 moreGoogleLinkedInMetaMicrosoftSnapSnowflake HardChapter
864Shortest Path to Get All Keysalso at:AirbnbPhonePe Hard—
2402Meeting Rooms IIIalso at:AmazonGoogle Hard—
2503Maximum Number of Points From Grid QueriesHard—
2561Rearranging Fruitsalso at:Amazon Hard—
2954Count the Number of Infection Sequencesalso at:SAP Hard—

Hash Table

5 problems

Medium 3

146LRU Cache★ also at:DoorDashExpediaLyft Also at 59 moreRakutenTargetToastAdobeAmazonAMDAppleArista NetworksAutodeskBloombergByteDanceCiscoCitadelCloudflareCREDDelhiveryDocuSigneBayFlipkartGoogleGrowwIntelIntuitJane StreetJPMorganLINELinkedInMetaMicrosoftMongoDBMorgan StanleyMyntraNetflixNianticNVIDIANykaaOktaOlaPalantirPayPalPhonePeQualcommRazorpayRedditRipplingSalesforceSAPSnapSnowflakeSplunkSpotifySwiggyTeslaTwilioVisaVMwareX (Twitter)ZoomZscaler MediumChapter
981Time Based Key-Value Storealso at:AirbnbInstacartLyft Also at 14 moreAmazonAppleBloombergCars24CoinbaseCrowdStrikeDatabricksGoogleMicrosoftMongoDBNetflixOpenAIPalantirVMware Medium—
1244Design A Leaderboardalso at:WayfairBloombergDatabricks Also at 2 moreGooglePinterest Medium—

Hard 2

127Word Ladderalso at:LyftYelpAmazon Also at 15 moreAppleBloombergDocuSignFlipkartGoogleLinkedInMetaMicrosoftOktaPhonePeRedditSnapSpotifyVMwareZscaler HardChapter
2791Count Paths That Can Form a Palindrome in a TreeHard—

Depth-First Search

4 problems

Medium 3

207Course Schedule★ also at:DoorDashTargetToast Also at 22 moreYelpAmazonAppleByteDanceCars24CitadelCloudflareCrowdStrikeeBayFlipkartGoogleIntuitMetaMicrosoftPayPalRobloxSalesforceSnapSnowflakeSwiggyWalmart Global TechZomato MediumChapter
210Course Schedule IIalso at:DoorDashAmazonApple Also at 24 moreArista NetworksBloombergCars24CitadelCleartripCoinbaseCure.fitDatabricksFlipkartGoogleIntuitLinkedInMetaMicrosoftMongoDBNetflixPalantirQualcommRobloxSalesforceSnapSnowflakeTeslaUrban Company MediumChapter
802Find Eventual Safe Statesalso at:AmazonBloombergGoogle Also at 1 moreMicrosoft MediumChapter

Hard 1

2092Find All People With Secretalso at:Google Hard—

Dynamic Programming

4 problems

Medium 2

787Cheapest Flights Within K Stops★ also at:AirbnbAmazonApple Also at 8 moreBloombergeBayFlipkartGoogleInMobiMicrosoftSnapStripe MediumChapter
2571Minimum Operations to Reduce an Integer to 0also at:MicrosoftSalesforceTwo Sigma Medium—

Hard 2

1931Painting a Grid With Three Different ColorsHard—
2858Minimum Edge Reversals So Every Node Is Reachablealso at:AmazonMeeshoMicrosoft Also at 2 morePayPalPhonePe Hard—

Tree

3 problems

Medium 3

230Kth Smallest Element in a BSTalso at:BloombergCiscoGoogle Also at 3 moreMetaMicrosoftVMware MediumChapter
545Boundary of Binary Treealso at:AdobeeBayFreshworks Also at 3 moreMetaMicrosoftSnowflake Medium—
2477Minimum Fuel Cost to Report to the Capitalalso at:Amazon Medium—

Misc

4 problems

Medium 2

855Exam Roomalso at:Amazon Medium—
1197Minimum Knight Movesalso at:AppleCitadel Medium—

Hard 2

295Find Median from Data Streamalso at:AdobeAmazonApple Also at 16 moreByteDanceCitadelDocuSigneBayFlipkartGoogleInMobiMeeshoMicrosoftNaviOktaOlaOYOPayPalVMwareWise HardChapter
564Find the Closest Palindromealso at:Yelp Hard—