TitleDifficultyCompaniesVideos
Lexicographically Smallest String with K-Position MovesEasyyahoo
Prune Unary nodes to form Full Binary TreeMediumyahoo
Dutch National Flag DNFMediumamazon apple bloomberg ebay facebook google linkedin microsoft oracle paypal pocket-gems pure-storage uber vmware yahoo
Highway BillboardMediummicrosoft netapp yahoo
Shuffle an ArrayMediumamazon apple bloomberg cisco facebook google linkedin microsoft salesforce tripadvisor two-sigma yahoo
Reverse a directed graphMediumyahoo
Delete in a Binary Search TreeMediumamazon apple bloomberg cisco facebook google linkedin microsoft oracle uber yahoo
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
Binary Number with Alternating BitsEasyyahoo
Jewels and StonesEasyadobe amazon apple facebook google yahoo
Matrix Cells in Distance OrderEasyyahoo
Defanging an IP AddressEasyadobe amazon apple facebook google yahoo
Optimize Water Distribution in a VillageHardgoogle yahoo
Maximum Distance in ArraysMediumyahoo
Reverse IntegerMediumadobe amazon apple barclays bloomberg cisco facebook google jpmorgan lyft microsoft netease oracle uber yahoo
Palindrome NumberEasyadobe amazon apple bloomberg facebook google hcl jpmorgan microsoft oracle yahoo
Binary Tree Traversal - Zigzag Level Order TraversalMediumamazon apple bloomberg bytedance ebay facebook google linkedin microsoft oracle qualtrics samsung servicenow yahoo morgan-stanley
Construct Binary Tree from Inorder and Preorder TraversalMediumadobe amazon apple bloomberg bytedance citadel facebook google microsoft oracle square twitter yahoo
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
Generate Nth Fibonacci NumberEasyamazon apple barclays facebook mathworks microsoft sap yahoo
Kth Permutation Sequence of Numbers 1 to NHardamazon apple facebook google microsoft twitter 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
Peeking IteratorMediumamazon apple atlassian ebay facebook google microsoft oracle yahoo
Reverse Words in a String 3Easyamazon apple bloomberg microsoft paypal salesforce snapchat yahoo zappos
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
Unique BSTs 2 - GenerateMediumadobe amazon apple facebook microsoft yahoo
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
Largest Palindrome ProductHardapple yahoo
Permutation in StringMediumamazon bloomberg facebook google lyft microsoft uber yahoo yandex
Subarray Sum Equals KMediumadobe amazon apple bloomberg ebay expedia facebook goldman-sachs google indeed linkedin microsoft oracle quora snapchat twilio uber wish yahoo yandex
Non-decreasing SubsequencesMediumfacebook yahoo
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
Next Greater Element 2Mediumamazon bloomberg facebook google microsoft oracle yahoo
Design Hit CounterMediumaffirm amazon apple atlassian bloomberg bookingcom dropbox google indeed linkedin microsoft netflix oracle pinterest quip snapchat uber visa yahoo zillow
Remove Duplicate LettersMediumadobe amazon apple bytedance facebook google microsoft nutanix yahoo
Rank ScoresMediumadobe amazon apple facebook yahoo
Second Highest Salary ProblemMediumadobe amazon apple bloomberg ebay facebook google microsoft yahoo
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
All Nodes Distance K in Binary TreeMediumamazon apple bloomberg bytedance didi facebook google hulu microsoft oracle uber yahoo
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
Container With Most WaterMediumadobe amazon apple bloomberg bytedance facebook goldman-sachs google lyft microsoft oracle uber vmware yahoo
Count Complete Tree NodesEasyamazon bloomberg bytedance facebook google microsoft yahoo
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
Generate ParenthesesMediumadobe alibaba amazon apple atlassian bloomberg bytedance cisco facebook google lyft microsoft nutanix nvidia salesforce samsung sap snapchat spotify uber yahoo yandex yelp zenefits