Big Tech

ByteDance 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
5
Medium
34
Hard
11
Mapped to chapter
25

Array

26 problems

Easy 2

349Intersection of Two Arraysalso at:AmazonGoogleMeta Also at 5 moreMicrosoftBloombergLyftMongoDBTwo Sigma Easy—
977Squares of a Sorted Arrayalso at:AmazoneBayGoogle Also at 11 moreMetaMicrosoftAdobeBloombergCrowdStrikeDuolingoInstacartSplunkUberVMwareWise Easy—

Medium 17

33Search in Rotated Sorted Array★ also at:AmazonCiscoeBay Also at 20 moreGoogleMetaMicrosoftNetflixAdobeArista NetworksAutodeskBloombergFlipkartFreshworksGoldman SachsLinkedInMongoDBMyntraNaviPayPalPaytmSAPVMwareZscaler MediumChapter
54Spiral Matrixalso at:AmazonAMDApple Also at 21 moreCiscoeBayGoogleMetaMicrosoftNetflixAdobeAutodeskBloombergCapital OneDatabricksDelhiveryEpic SystemsFlipkartIntuitMorgan StanleyOYOPayPalPhonePeRobloxZoho MediumChapter
55Jump Game★ also at:AmazonCiscoGoogle Also at 12 moreMetaMicrosoftAdobeBloombergDoorDashMeeshoMorgan StanleyPayPalPhonePeUrban CompanyVMwareZoho MediumChapter
56Merge Intervalsalso at:AmazonAMDApple Also at 46 moreCiscoeBayGoogleMetaMicrosoftNetflixQualcommTeslaAdobeAirtelAtlassianAutodeskBloombergCars24CitadelCrowdStrikeDatabricksDocuSignDoorDashDropboxExpediaFlipkartGoldman SachsInstacartJuspayMorgan StanleyOktaOYOPalantirPayPalPhonePeRazorpayRipplingRobloxSAPSnapTargetToastUberVisaVMwareWalmart Global TechX (Twitter)YelpZohoZomato MediumChapter
78Subsets★ also at:AmazoneBayGoogle Also at 8 moreMetaMicrosoftAdobeBloombergChimeFlipkartLyftPayPal MediumChapter
105Construct Binary Tree from Preorder and Inorder Traversal★ also at:AmazonGoogleMeta Also at 6 moreMicrosoftTeslaAdobeBloombergFreshworksSalesforce MediumChapter
139Word Breakalso at:AmazoneBayGoogle Also at 17 moreMetaMicrosoftNetflixAdobeArista NetworksAutodeskBlockBloombergCleartripDiscordIntuitMongoDBTargetToastTwilioUberVMware MediumChapter
152Maximum Product Subarrayalso at:AmazonGoogleMeta Also at 13 moreMicrosoftQualcommAdobeBloombergDelhiveryDeliverooJuspayLINELinkedInMorgan StanleyPayPalSwiggyWayfair Medium—
179Largest Numberalso at:AmazonGoogleMicrosoft Also at 4 moreMyntraNykaaPaytmZoho Medium—
200Number of Islands★ also at:AmazonAMDApple Also at 43 moreCiscoeBayGoogleIntelMetaMicrosoftQualcommTeslaAdobeAutodeskBloombergCapital OneCitadelCloudflareCREDCrowdStrikeDocuSignDoorDashDropboxFlipkartGoldman SachsIntuitLinkedInLyftMeeshoOktaOlaPayPalPhonePePinterestRedditSAPSnapSplunkSpotifyTargetToastUberUrban CompanyVMwareWalmart Global TechZohoZomato MediumChapter
322Coin Change★ also at:AmazoneBayGoogle Also at 18 moreMetaMicrosoftNetflixAdobeAtlassianBloombergCleartripDatadogDeliverooFractal AnalyticsIntuitMorgan StanleyNianticPayPalPhonePePinterestSAPVMware MediumChapter
347Top K Frequent Elementsalso at:AmazonAMDApple Also at 27 moreeBayGoogleMetaMicrosoftNetflixNVIDIATeslaArista NetworksAtlassianBloombergDocuSignDropboxGoldman SachsInfo Edge (Naukri)IntuitPayPalRipplingRobinhoodSnapSnowflakeSpotifyTargetTiger AnalyticsToastUberVMwareYelp MediumChapter
406Queue Reconstruction by Heightalso at:GoogleMetaPhonePe MediumChapter
698Partition to K Equal Sum Subsetsalso at:AmazoneBayGoogle Also at 3 moreMicrosoftLinkedInVMware MediumChapter
735Asteroid Collisionalso at:AmazoneBayGoogle Also at 15 moreMetaMicrosoftBloombergCitadelDoorDashDream11FlipkartJuspayLyftMeeshoMyntraNaviOpenAIPayPalPhonePe Medium—
1057Campus BikesMedium—
1202Smallest String With Swapsalso at:MicrosoftPalantirPayPal Also at 1 morePhonePe Medium—

Hard 7

239Sliding Window Maximum★ also at:AmazonCiscoGoogle Also at 20 moreMetaMicrosoftNVIDIAAdobeAutodeskBloombergCitadelDeliverooDoorDashExpediaJPMorganJuspayLINELyftMongoDBOYOPhonePeRobloxVMwareWayfair HardChapter
317Shortest Distance from All Buildingsalso at:MetaMicrosoftDoorDash Also at 2 moreSnapSplunk Hard—
403Frog Jumpalso at:AmazonSnap Hard—
407Trapping Rain Water IIalso at:AmazonGoogleMicrosoft Also at 3 moreQualcommFlipkartX (Twitter) Hard—
465Optimal Account Balancingalso at:GoogleGoldman SachsPinterest Also at 2 moreRipplingZscaler Hard—
493Reverse Pairsalso at:AmazonGoogleBloomberg HardChapter
1235Maximum Profit in Job Schedulingalso at:AmazonGoogleMicrosoft Also at 13 moreAirbnbAirtelBloombergDatabricksDocuSignDoorDashFlipkartMeeshoOYOPayPalPhonePeSnowflakeSwiggy Hard—

Linked List

6 problems

Easy 1

206Reverse Linked List★ also at:AmazonAppleCisco Also at 19 moreeBayGoogleMetaMicrosoftQualcommTeslaAdobeBloombergGrowwJioLINELinkedInPaytmSAPSnapSpotifyVMwareX (Twitter)Yelp EasyChapter

Medium 5

19Remove Nth Node From End of Listalso at:AmazonAppleGoogle Also at 8 moreMetaMicrosoftQualcommAdobeInMobiLINEMorgan StanleyVMware Medium—
92Reverse Linked List IIalso at:AmazonGoogleMeta Also at 5 moreMicrosoftAdobeArista NetworksFreshworksRevolut MediumChapter
143Reorder Listalso at:AmazoneBayGoogle Also at 7 moreMetaMicrosoftAdobeArista NetworksBloombergMorgan StanleySplunk MediumChapter
148Sort Listalso at:AmazonGoogleMeta Also at 4 moreMicrosoftAdobeBloombergDelhivery MediumChapter
445Add Two Numbers IIalso at:AmazoneBayGoogle Also at 2 moreMicrosoftBloomberg Medium—

String

6 problems

Medium 4

22Generate Parenthesesalso at:AmazonGoogleMeta Also at 14 moreMicrosoftNetflixQualcommAdobeAirtelBloombergFlipkartIntuitLyftMorgan StanleyMyntraSalesforceSpotifyZoho Medium—
402Remove K Digitsalso at:AmazonGoogleAdobe Also at 3 morePhonePeSnapVMware Medium—
449Serialize and Deserialize BSTalso at:AmazoneBay Medium—
1143Longest Common Subsequence★ also at:AmazonCiscoGoogle Also at 6 moreMetaMicrosoftCitadelCure.fitDoorDashMorgan Stanley MediumChapter

Hard 2

72Edit Distance★ also at:AmazonAppleCisco Also at 13 moreGoogleMetaMicrosoftQualcommAdobeArista NetworksBloombergFlipkartNaviSnapSwiggyVMwareZoho HardChapter
316Remove Duplicate Lettersalso at:AmazonGoogleMicrosoft Also at 3 moreAdobeBloombergZoho Hard—

Hash Table

4 problems

Medium 3

3Longest Substring Without Repeating Charactersalso at:AmazonAMDApple Also at 45 moreCiscoDelleBayGoogleIntelMetaMicrosoftNetflixNVIDIAQualcommTeslaAdobeAirtelArista NetworksAtlassianBloombergDocuSignDream11DuolingoFlipkartFractal AnalyticsFreshworksIntuitJPMorganJuspayLinkedInMorgan StanleyMyntraPayPalPaytmRakutenRipplingRobloxSalesforceSAPSpotifySwiggyToastUrban CompanyVisaVMwareYelpZohoZomatoZoom MediumChapter
314Binary Tree Vertical Order Traversalalso at:AppleMetaAdobe Also at 5 moreBloombergDoorDashLINERedditSnap Medium—
863All Nodes Distance K in Binary Treealso at:AmazonAppleGoogle Also at 4 moreMetaMicrosoftFlipkartOkta Medium—

Hard 1

76Minimum Window Substringalso at:AmazonCiscoeBay Also at 16 moreGoogleMetaMicrosoftAdobeAirbnbBloombergDeliverooGoldman SachsInMobiLinkedInLyftMeeshoSAPSnapSwiggyVMware HardChapter

Tree

3 problems

Easy 2

104Maximum Depth of Binary Tree★ also at:AmazonGoogleMeta Also at 5 moreMicrosoftQualcommAdobeArista NetworksLinkedIn EasyChapter
543Diameter of Binary Treealso at:AmazonGoogleMeta Also at 5 moreMicrosoftAdobeBloombergDoorDashFlipkart EasyChapter

Medium 1

1339Maximum Product of Splitted Binary Treealso at:AmazonGoogleMeta Also at 1 moreMicrosoft Medium—

Misc

5 problems

Medium 4

173Binary Search Tree Iteratoralso at:AmazoneBayGoogle Also at 4 moreMetaMicrosoftSplunkWise Medium—
207Course Schedule★ also at:AmazonAppleeBay Also at 22 moreGoogleMetaMicrosoftCars24CitadelCloudflareCrowdStrikeDoorDashFlipkartIntuitPayPalRobloxSalesforceSnapSnowflakeSwiggyTargetToastUberWalmart Global TechYelpZomato MediumChapter
222Count Complete Tree Nodesalso at:GoogleFlipkart Medium—
670Maximum Swapalso at:Meta Medium—

Hard 1

772Basic Calculator IIIalso at:MicrosoftDoorDashSnap Hard—