TitleDifficultyCompaniesVideos
All Nodes Distance K in Binary TreeMediumamazon apple bloomberg bytedance didi facebook google hulu microsoft oracle uber yahoo
Minimum Depth of Binary TreeEasyamazon apple facebook microsoft
Single Number 2 - All elements except one occur thriceMediumadobe amazon facebook google
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
Divide Two Integers ProblemMediumadobe amazon apple bloomberg context-logic facebook google microsoft oracle riot-games
Sort a Linked ListMediumadobe amazon bytedance facebook google microsoft
Dutch National Flag DNFMediumamazon apple bloomberg ebay facebook google linkedin microsoft oracle paypal pocket-gems pure-storage uber vmware yahoo
Longest Increasing Subsequence LIS ProblemMediumadobe 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
Unique BSTs 1 - CountMediumadobe amazon apple bloomberg expedia facebook google microsoft snapchat wish
Container With Most WaterMediumadobe amazon apple bloomberg bytedance facebook goldman-sachs google lyft microsoft oracle uber vmware yahoo
Count Complete Tree Nodes ProblemEasyamazon bloomberg bytedance facebook google microsoft yahoo
Longest Common Subsequence LCS 1 - Get LengthMediumamazon bytedance facebook google indeed microsoft tencent
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
Pascal’s Triangle 1 - Generate first n rowsEasyadobe amazon apple bloomberg facebook goldman-sachs google microsoft twitter uber
Skyline ProblemHardadobe amazon apple databricks facebook goldman-sachs google houzz microsoft salesforce tableau twitter uber yelp
Binary Tree Inorder TraversalEasyalibaba amazon apple bloomberg bytedance facebook google microsoft oracle sap uber
Binary Tree Postorder TraversalEasyadobe amazon facebook google uber
Count Univalue Subtrees ProblemMediumamazon bloomberg box ebay facebook google
Generate Parentheses ProblemMediumadobe alibaba amazon apple atlassian bloomberg bytedance cisco facebook google lyft microsoft nutanix nvidia salesforce samsung sap snapchat spotify uber yahoo yandex yelp zenefits
Inorder Successor in Binary Search TreeMediumamazon bloomberg citadel facebook google microsoft palantir-technologies pocket-gems quip 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 Parentheses ProblemEasyadobe 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
Cousins in Binary Tree ProblemEasyadobe amazon bloomberg facebook goldman-sachs microsoft
Climbing Stairs Problem 1 - Take atmost 2 StepsEasyadobe alibaba amazon apple baidu bloomberg citadel facebook goldman-sachs google huawei linkedin microsoft nvidia oracle tripadvisor uber zulily
Convert Sorted Array to height-balanced Binary Search TreeEasyairbnb amazon apple bloomberg cisco facebook google microsoft oracle yahoo
Copy List with Random PointerMediumadobe amazon apple bloomberg capital-one ebay expedia facebook google microsoft nutanix oracle qualtrics uber visa yahoo snapchat
Flatten a Multi-Level Linked List level by levelfacebook
Intersection of Two Linked Lists ProblemEasyairbnb alibaba amazon apache-design bloomberg bytedance cisco ebay expedia facebook goldman-sachs google linkedin microsoft morgan-stanley netapp oracle qualcomm redfin sap tencent yahoo
Lowest Common Ancestor in a Binary Search TreeMediumadobe amazon bloomberg cisco facebook google linkedin microsoft oracle twitter uber
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
N-Queens ProblemHardadobe amazon apple bytedance ebay facebook google microsoft oracle rubrik tableau uber
Diameter Of a Binary TreeEasyadobe amazon apple atlassian baidu bloomberg bytedance facebook google intel microsoft oracle qualtrics tencent
K Reverse a linked listHardadobe amazon apple bytedance cisco cohesity ebay facebook google mathworks microsoft paypal vmware
Linked List Cycle 1 - Detect CycleEasyadobe amazon apple bloomberg cisco ebay facebook goldman-sachs google linkedin microsoft oracle vmware yahoo
Maximum Depth of Binary TreeEasyadobe amazon apple bloomberg bytedance facebook goldman-sachs google linkedin microsoft paypal sap uber yahoo
Populate next pointer to right node in Perfect Binary TreeMediumamazon apple bloomberg didi facebook google microsoft nutanix oracle sap vmware
Same Tree ProblemEasyamazon apple bloomberg facebook google linkedin microsoft
Sum of Left LeavesEasyadobe amazon bloomberg expedia facebook google mathworks
Best Time To Buy And Sell Stock 4 - at most k timesHardamazon apple bloomberg facebook google
Find duplicate number in array containing n+1 numbers between 1 and nMediumadobe amazon apple bloomberg ebay facebook google intuit microsoft oracle salesforce tencent vmware
Binary Tree Level Order Traversal - Level by LevelMediumadobe amazon apple atlassian bloomberg cisco citadel ebay expedia facebook google linkedin mathworks microsoft oracle sap uber vmware yahoo
Merge Two Sorted Linked ListsEasyadobe airbnb alibaba amazon apple arista-networks atlassian bloomberg bytedance capital-one cisco ebay facebook google huawei indeed intel linkedin lyft microsoft oracle paypal samsung tencent uber visa vmware yahoo yandex
Evaluate Reverse Polish Notation ProblemMediumamazon atlassian facebook google linkedin microsoft opendoor oracle uber vmware yandex zillow
Reverse Words in a StringMediumamazon apple bloomberg cisco citadel facebook google huawei microsoft nvidia oracle qualcomm salesforce snapchat vmware yelp zillow
Longest Palindromic Substring ProblemMediumadobe airbnb alibaba amazon appdynamics apple bloomberg cisco ebay facebook godaddy google huawei jpmorgan mathworks microsoft nutanix oracle paypal pure-storage roblox samsung sap servicenow tencent uber vmware wayfair yahoo yandex
Subsets 1 ProblemMediumadobe amazon apple atlassian bloomberg bytedance coupang ebay facebook goldman-sachs google lyft microsoft uber yahoo
Is Subsequence ProblemEasyamazon bloomberg coursera facebook google pinterest
Convert String to Integer atoi ProblemMediumadobe amazon apple bloomberg cisco citadel ebay facebook goldman-sachs google linkedin microsoft nvidia oracle redfin sap tencent uber vmware zillow