TitleDifficultyCompaniesVideos
Dutch National Flag DNFMediumamazon apple bloomberg ebay facebook google linkedin microsoft oracle paypal pocket-gems pure-storage uber vmware yahoo
Relative Sort ArrayEasyamazon de-shaw ebay google microsoft
Find K Closest ElementsMediumamazon apple bloomberg ebay facebook google microsoft snapchat uber
Find Leaves of Binary TreeMediumamazon atlassian ebay google linkedin pocket-gems
K closest Points to OriginMediumamazon apple asana ebay expedia facebook goldman-sachs google linkedin microsoft oracle paypal uber visa yahoo
Top K Frequent ElementsMediumamazon apple bloomberg bytedance ebay facebook goldman-sachs google hulu linkedin microsoft oracle pocket-gems snapchat spotify uber vmware yahoo yelp
Boundary of Binary TreeMediumadobe amazon apple audible ebay google microsoft oracle
Minimum Window SubsequenceHardamazon bloomberg ebay google houzz microsoft
Search in a Sorted Array of Unknown SizeMediumamazon ebay google microsoft
Is Graph BipartiteMediumamazon dropbox ebay facebook google linkedin liveramp microsoft uber
Diagonal TraverseMediumamazon apple ebay facebook google microsoft quora splunk
Maximum Width RampMediumebay facebook google
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit ProblemMediumebay google
Implement Power Function 1Mediumadobe amazon apple asana bloomberg ebay facebook goldman-sachs google linkedin microsoft morgan-stanley oracle uber vmware
Binary Tree Traversal - Zigzag Level Order TraversalMediumamazon apple bloomberg bytedance ebay facebook google linkedin microsoft oracle qualtrics samsung servicenow yahoo morgan-stanley
Count PrimesMediumadobe amazon apple bloomberg capital-one ebay facebook goldman-sachs google intel microsoft oracle yahoo yandex
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
Least Number of Perfect Squares that Sums to nMediumadobe amazon apple cisco ebay facebook godaddy google grammarly linkedin lyft microsoft uber yandex
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
Odd Even Linked List - Bring odd nodes first and even laterMediumamazon bloomberg capital-one ebay facebook google microsoft
Partition to K Equal Sum SubsetsMediumamazon bytedance ebay facebook google houzz linkedin microsoft pinterest vmware
Peeking IteratorMediumamazon apple atlassian ebay facebook google microsoft oracle yahoo
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
Spiral Matrix 1 - ReturnMediumadobe amazon apple bloomberg bytedance cisco drawbridge ebay epic-systems facebook goldman-sachs google hulu linkedin microsoft oracle paypal quip robinhood snapchat uber visa
Surrounded RegionsMediumamazon ebay facebook google splunk uber
Swap Nodes in PairsMediumadobe amazon apple bloomberg ebay facebook google lyft microsoft oracle sap uber
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
Word Break 2 - Construct a sentenceHardamazon apple audible bloomberg bookingcom dropbox ebay facebook google microsoft oracle pinterest snapchat twitter uber zillow
Binary GapEasyebay twitter
Design SkiplistHardebay google microsoft pure-storage twitter
Number of ProvincesMediumadobe amazon atlassian bloomberg drawbridge ebay facebook goldman-sachs google linkedin microsoft pocket-gems salesforce twitter two-sigma uber
Subarray Sum Equals KMediumadobe amazon apple bloomberg ebay expedia facebook goldman-sachs google indeed linkedin microsoft oracle quora snapchat twilio uber wish yahoo yandex
Snapshot ArrayMediumamazon apple ebay facebook google snapchat uber
Maximum Subarray SumMediumadobe alibaba amazon apple asana atlassian bloomberg bytedance capital-one cisco citadel ebay expedia facebook goldman-sachs google ibm intel jpmorgan linkedin microsoft morgan-stanley nvidia oracle palantir-technologies paypal qualcomm salesforce sap two-sigma uber visa wayfair yahoo zillow
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
Hand of StraightsMediumbloomberg coupang ebay google
Rearrange String k Distance ApartHardamazon ebay facebook google microsoft
Reorganize StringMediumamazon apple ebay facebook google microsoft oracle qualtrics tesla twitch twitter uber ibm flexport
Flatten Nested List IteratorMediumairbnb amazon apple atlassian bloomberg ebay facebook google linkedin lyft microsoft oracle pinterest snapchat splunk twitter uber vmware
Shortest Word Distance 2Mediumamazon ebay linkedin uber
Second Highest Salary ProblemMediumadobe amazon apple bloomberg ebay facebook google microsoft yahoo
Asteroid CollisionMediumamazon bytedance ebay google lyft microsoft paypal uber visa
Add Two Numbers represented as Linked List in Forward orderMediumamazon apple bloomberg bytedance cisco ebay facebook goldman-sachs google microsoft oracle uber yahoo
Course Schedule 1 - Is it PossibleMediumamazon apple bloomberg bytedance cisco cohesity ebay facebook goldman-sachs google intuit linkedin microsoft nutanix oracle paypal salesforce uber wish yahoo yelp zenefits
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
Longest Increasing SubsequenceMediumadobe amazon apple atlassian ebay facebook google microsoft oracle salesforce uber vmware
Lowest Common Ancestor of a Binary TreeMediumadobe airbnb amazon apple atlassian bloomberg bytedance ebay facebook google intuit linkedin microsoft oracle paypal pinterest salesforce splunk uber visa yahoo zillow
Count Univalue SubtreesMediumamazon bloomberg box ebay facebook google
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
Maximum Width of Binary TreeMediumamazon bloomberg ebay facebook google microsoft uber