TitleDifficultyCompaniesVideos
Implement 3 stacks in 1 listHardmicrosoft
Check if target word exists in matrix horizontally or verticallyEasymicrosoft
Expected number of rounds to reach one remaining coinEasymicrosoft
Find Largest Value in Each Tree Row ProblemMediumamazon apple facebook linkedin microsoft
Construct Binary Search Tree BST from Preorder TraversalMediumamazon facebook microsoft oracle
K closest Points to OriginMediumamazon apple asana ebay expedia facebook goldman-sachs google linkedin microsoft oracle paypal uber visa yahoo
Range Sum Query - ImmutableEasyamazon bloomberg facebook google microsoft palantir-technologies goldman-sachs
Robot Room CleanerHardamazon facebook google microsoft
Target Sum ProblemMediumfacebook google microsoft
Binary Tree Path - All root to leaf pathsEasyadobe amazon apple facebook google microsoft
Sliding Puzzle ProblemHardairbnb amazon facebook google microsoft uber
Diagonal Traverse ProblemMediumamazon apple ebay facebook google microsoft quora splunk
Maximum Swap ProblemMediumamazon apple bytedance facebook microsoft uber
Smallest Range Covering Elements from K Lists ProblemHardamazon apple facebook google lyft microsoft pinterest snapchat
Design a Stack With Increment Operation ProblemMediummicrosoft
Uncommon Words from Two Sentences ProblemEasyamazon expedia facebook microsoft
Find the Longest Substring Containing Vowels in Even Counts ProblemMediummicrosoft
Read N characters given read7Easymicrosoft
Water Bottles ProblemEasymicrosoft
Merge Nodes in Between Zeros ProblemMediummicrosoft
Nth Number with sum of digits as 10Easymicrosoft
Relative Sort Array ProblemEasyamazon de-shaw ebay google microsoft
Max Stack ProblemHardamazon bloomberg facebook google linkedin lyft microsoft pure-storage snapchat twitter
Distribute Coins in Binary Tree ProblemMediumamazon facebook google microsoft uber
Permutations of Array 2 - Array has duplicatesMediumadobe amazon apple bloomberg facebook linkedin microsoft uber vmware
Continuous Subarray SumMediumamazon bytedance facebook google microsoft samsung
Implement Power Function 1Mediumadobe amazon apple asana bloomberg ebay facebook goldman-sachs google linkedin microsoft morgan-stanley oracle uber vmware
Missing Number ProblemEasyadobe amazon apple arista-networks bloomberg facebook google ibm microsoft oracle servicenow vmware zillow
Reverse Integer ProblemMediumadobe amazon apple barclays bloomberg cisco facebook google jpmorgan lyft microsoft netease oracle uber yahoo
Palindrome Number ProblemEasyadobe amazon apple bloomberg facebook google hcl jpmorgan microsoft oracle yahoo
Friend Words - One Edit DistanceMediumamazon facebook google microsoft snapchat twitter uber
Longest Duplicate Substring ProblemHardamazon apple google microsoft oracle
Shortest Common Supersequence ProblemHardmicrosoft
Balanced Binary Tree ProblemEasyadobe amazon apple bloomberg bytedance cisco facebook google microsoft
Binary Tree Path Sum - Maximum Sum between any nodesHardadobe amazon appdynamics apple baidu bloomberg bytedance facebook google intuit microsoft twitter uber vmware
Binary Tree Traversal - Zigzag Level Order TraversalMediumamazon apple bloomberg bytedance ebay facebook google linkedin microsoft oracle qualtrics samsung servicenow yahoo
Construct Binary Tree from Inorder and Postorder TraversalMediumamazon bloomberg facebook google mathworks microsoft twitter
Construct Binary Tree from Inorder and Preorder TraversalMediumadobe amazon apple bloomberg bytedance citadel facebook google microsoft oracle square twitter yahoo
Contains Duplicate 2 - within k distanceEasyadobe airbnb amazon apple bloomberg google microsoft palantir-technologies
Contains Duplicate 3 - within k distance and t differenceHardadobe airbnb apple google microsoft palantir-technologies
Convert Sorted List into a height-balanced Binary search TreeMediumamazon bloomberg facebook google lyft microsoft oracle vmware zenefits
Count of Smaller Numbers After Self ProblemHardadobe amazon apple bloomberg facebook google microsoft oracle uber
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
Find Peak Element in a Given ArrayMediumamazon apple bloomberg bytedance facebook google ixl lyft microsoft quora uber vmware yahoo
Find the Closest Palindrome ProblemHardamazon facebook google microsoft nutanix pinterest uber yelp
Finding N-th Smallest Sum from Two Sorted Arraysmicrosoft
First Unique Character in a Stream of CharactersMediumamazon google microsoft
Generate Nth Fibonacci NumberEasyamazon apple barclays facebook mathworks microsoft sap yahoo
Gray CodeMediumamazon microsoft apple