TitleDifficultyCompaniesVideos
Dutch National Flag DNFMediumamazon apple bloomberg ebay facebook google linkedin microsoft oracle paypal pocket-gems pure-storage uber vmware yahoo
Insert Delete Search and GetRandom in Constant Time 1 - Dupes not allowedMediumadobe affirm amazon appdynamics apple bloomberg databricks facebook flipkart goldman-sachs google indeed linkedin microsoft oracle pinterest pocket-gems pure-storage quora salesforce twilio twitter two-sigma uber visa vmware yandex yelp
Remove All Adjacent Duplicates in String 2Mediumbloomberg facebook factset goldman-sachs google vmware
Sort Array By ParityEasyamazon apple cisco facebook google microsoft oracle vmware
Alien DictionaryHardairbnb amazon apple bloomberg cohesity doordash facebook flipkart google microsoft pinterest pocket-gems snapchat square twitter uber vmware
Palindromic SubstringsMediumadobe amazon apple atlassian citadel coursera facebook goldman-sachs google linkedin mathworks microsoft pure-storage roblox twitter uber vmware
Task SchedulerMediumamazon apple bloomberg facebook google microsoft nutanix oracle pinterest uber vmware
Top K Frequent ElementsMediumamazon apple bloomberg bytedance ebay facebook goldman-sachs google hulu linkedin microsoft oracle pocket-gems snapchat spotify uber vmware yahoo yelp
Break a PalindromeMediumexpedia jpmorgan roblox vmware
Contiguous ArrayMediumadobe amazon apple facebook google microsoft quora robinhood vmware
Degree of an ArrayEasycitrix ge-digital ixl mathworks robinhood visa vmware
Consecutive Numbers SumHardcitadel citrix indeed roblox uber visa vmware
Permutations of Array 2 - Array has duplicatesMediumadobe amazon apple bloomberg facebook linkedin microsoft uber vmware
Implement Power Function 1Mediumadobe amazon apple asana bloomberg ebay facebook goldman-sachs google linkedin microsoft morgan-stanley oracle uber vmware
Missing NumberEasyadobe amazon apple arista-networks bloomberg facebook google ibm microsoft oracle servicenow vmware zillow
Binary Tree Path Sum - Maximum between any two nodesHardadobe amazon appdynamics apple baidu bloomberg bytedance facebook google intuit microsoft twitter uber vmware
Convert Sorted List into a height-balanced Binary search TreeMediumamazon bloomberg facebook google lyft microsoft oracle vmware zenefits
Find Median from Data StreamHardadobe amazon apple atlassian bloomberg bytedance citadel ebay expedia facebook goldman-sachs google microsoft netflix oracle pinterest qualtrics salesforce snapchat twitter uber vmware yahoo
Find Peak Element in a Given ArrayMediumamazon apple bloomberg bytedance facebook google ixl lyft microsoft quora uber vmware yahoo
Merge K Sorted ListsHardadobe airbnb alibaba amazon apple atlassian audible bloomberg box bytedance cisco cohesity cruise-automation ebay facebook goldman-sachs google indeed ixl linkedin lyft mathworks microsoft nvidia oracle salesforce sap tableau twitter uber vmware wish yahoo yandex zillow
Partition to K Equal Sum SubsetsMediumamazon bytedance ebay facebook google houzz linkedin microsoft pinterest vmware
Range Sum Query 2D - ImmutableMediumamazon apple cruise-automation facebook google houzz lyft microsoft vmware
Remove K DigitsMediumadobe amazon bloomberg bytedance didi facebook google microsoft nutanix oracle snapchat vmware
Reverse Words in a String 2Mediumamazon google microsoft uber vmware
Serialize and Deserialize Binary TreeHardamazon apple bloomberg citadel ebay expedia facebook google groupon indeed linkedin microsoft oracle qualtrics quora salesforce snapchat tableau uber vmware yahoo
Sudoku SolverHardadobe amazon apple arista-networks doordash dropbox expedia facebook google microsoft oracle riot-games roblox snapchat uber vmware wish
Valid SudokuMediumadobe amazon apple bloomberg cruise-automation doordash facebook google microsoft oracle pinterest roblox salesforce snapchat twitter uber vmware
Validate Binary Search TreeMediumadobe amazon apple asana atlassian bloomberg bytedance capital-one ebay facebook goldman-sachs google linkedin mathworks microsoft oracle salesforce sap tripadvisor uber visa vmware yahoo yandex
Find the Index of the First Occurrence in a StringEasyadobe amazon apple bloomberg citadel dropbox ebay facebook google microsoft oracle paypal pocket-gems vmware yahoo yandex
Time Based Key-Value StoreMediumamazon apple atlassian databricks facebook flexport google linkedin lyft microsoft netflix oracle square stripe sumologic twitter uber vmware zillow
Convert Binary Search Tree to Sorted Doubly Linked ListMediumamazon bloomberg databricks facebook google lyft microsoft oracle uber vmware
Find Duplicate File in SystemMediumamazon apple dropbox facebook google microsoft oracle vmware
Flatten Nested List IteratorMediumairbnb amazon apple atlassian bloomberg ebay facebook google linkedin lyft microsoft oracle pinterest snapchat splunk twitter uber vmware
Shortest Word Distance 1Easyamazon google linkedin microsoft oracle paypal uber vmware
Find the CelebrityMediumamazon apple facebook google linkedin microsoft palantir-technologies pinterest square uber vmware
Kth Largest Element in an ArrayMediumadobe airbnb alibaba amazon apple atlassian baidu bloomberg bytedance ebay expedia facebook goldman-sachs google grab jpmorgan linkedin microsoft oracle pocket-gems salesforce snapchat spotify tencent uber vmware yahoo
Restore IP AddressesMediumadobe amazon apple facebook microsoft snapchat vmware yahoo
Longest Increasing SubsequenceMediumadobe amazon apple atlassian ebay facebook google microsoft oracle salesforce uber vmware
Sliding Window MaximumHardadobe alibaba amazon apple bloomberg bytedance citadel coursera databricks facebook google lyft microsoft nutanix oracle pinterest roblox twitter uber vmware wish yelp zenefits
Container With Most WaterMediumadobe amazon apple bloomberg bytedance facebook goldman-sachs google lyft microsoft oracle uber vmware yahoo
Jump Game 1 - Check if it reaches last indexMediumadobe amazon apple bloomberg bytedance facebook google microsoft nutanix oracle postmates uber vmware pinterest
Skyline ProblemHardadobe amazon apple databricks facebook goldman-sachs google houzz microsoft salesforce tableau twitter uber yelp vmware
Word Ladder 1 - Get Ladder LengthHardaffirm amazon apple audible bloomberg cohesity expedia facebook google linkedin lyft microsoft oracle pinterest qualtrics salesforce samsung servicenow snapchat spotify square tesla uber vmware yelp zillow
Unique Paths in Grid 1 - Count all paths moving right or downMediumadobe alibaba amazon apple bloomberg facebook goldman-sachs google mathworks microsoft oracle snapchat uber vmware
Valid ParenthesesEasyadobe airbnb akuna-capital amazon apple atlassian audible barclays blizzard bloomberg cisco citadel doordash ebay epic-systems expedia facebook godaddy goldman-sachs google ibm intel intuit jpmorgan linkedin liveramp lyft mathworks microsoft morgan-stanley oracle paypal postmates riot-games salesforce samsung sap servicenow splunk spotify tencent tesla triplebyte twilio twitter uber visa vmware yahoo yandex zenefits zillow
Clone Undirected GraphMediumamazon apple facebook google linkedin mathworks microsoft pocket-gems splunk twitter uber vmware
Maximal SquareMediumadobe airbnb amazon appdynamics apple bloomberg citadel facebook google huawei microsoft oracle two-sigma uber vmware
Minimum Window SubstringHardadobe airbnb amazon apple bloomberg bytedance cohesity deutsche-bank directi ebay facebook godaddy goldman-sachs google linkedin lyft microsoft nutanix oracle salesforce snapchat tencent twitter uber visa vmware yahoo
Binary Tree Right Side ViewMediumadobe amazon apple atlassian bloomberg bytedance citadel ebay facebook google mathworks microsoft nvidia oracle paypal sap uber vmware
K Reverse a linked listHardadobe amazon apple bytedance cisco cohesity ebay facebook google mathworks microsoft paypal vmware