TitleDifficultyCompaniesVideos
Letter Combinations of a Phone Number ProblemMediumamazon apple atlassian bloomberg cisco dropbox ebay facebook goldman-sachs google jpmorgan lyft microsoft morgan-stanley nutanix oracle quip roblox salesforce servicenow square twilio uber vmware yahoo yelp
4SumMediumadobe amazon apple bloomberg facebook google microsoft samsung yahoo
Add Two Numbers represented as Linked List in Reversed OrderMediumadobe aetion airbnb alibaba amazon apple baidu bloomberg bytedance capital-one cisco dell docusign ebay facebook flipkart google grab huawei ibm intel lyft mathworks microsoft nvidia oracle paypal qualcomm redfin salesforce servicenow uber vmware wish yahoo yandex zoho
Sum of Even Numbers After QueriesMediumindeed
UTF-8 ValidationMediumamazon apple facebook google palantir-technologies
Construct String from Binary Tree ProblemMediumamazon
Reordered Power of 2 ProblemMedium
Max Number of K-Sum PairsMedium
Binary Search Tree BST Inorder IteratorMediumalibaba amazon apple atlassian bloomberg bytedance cisco cloudera ebay facebook google linkedin microsoft oracle qualtrics redfin splunk uber
Number of Subsequences That Satisfy the Given Sum ConditionMediumfacebook google
Word Pattern 2 ProblemMediumdropbox facebook pony-ai ponyai uber
Single Number 3 - All elements except two occur twiceMediumamazon apple facebook yahoo
Remove duplicates from Sorted List 2Mediumadobe amazon apple bloomberg google microsoft paypal salesforce
Min Stack ProblemMediumadobe amazon apple bloomberg ebay facebook flipkart goldman-sachs google groupon intuit linkedin lyft microsoft morgan-stanley netflix oracle pure-storage servicenow snapchat uber visa wish zenefits
Lowest Common Ancestor of a Binary Tree 4 - for array of nodesMedium
Lowest Common Ancestor of a Binary Tree 3 - Given Parent PointerMediumfacebook twitter
Lowest Common Ancestor for a n-ary TreeMediumamazon
Lowest Common Ancestor of a Binary Tree 2 - Nodes may not exist in TreeMedium
Swap Kth node from beginning with Kth node from end in a Linked ListMedium
Number of elements less than or equal to a given number in a given subarrayMedium
Merge a Linked list into another at Alternate PositionsMedium
Snakes and Ladders ProblemMediumamazon apple cisco facebook google hulu microsoft uber
Count and Say Sequence ProblemMediumadobe amazon apple bloomberg epic-systems facebook google microsoft oracle
Compare Version Numbers ProblemMediumamazon apple arista-networks google microsoft square
ZigZag ConversionMediumadobe amazon apple bloomberg facebook google microsoft paypal uber wish
Sentence Screen Fitting ProblemMediumgoogle robinhood
Next Greater Element 3 - Find smallest number larger than given number using same digitsMediumamazon bloomberg facebook houzz microsoft vmware
Largest Number From Given NumbersMediumamazon apple bytedance facebook google microsoft oracle salesforce uber works-applications
My Calendar 1 ProblemMediumamazon apple google intuit microsoft qualtrics uber
Maximum Number of Groups Entering a CompetitionMedium
Paint House 1 - N houses with 3 colors with no two adjacent houses with same colorMediumapple linkedin microsoft tencent twitter
Short Encoding of Words ProblemMedium
Maximum Points You Can Obtain from Cards ProblemMediumflipkart google
Super Ugly Number ProblemMediumgoogle
Rearrange Array Elements by Sign ProblemMedium
Basic Calculator 2 ProblemMediumairbnb amazon apple atlassian doordash ebay facebook google houzz indeed intuit ixl microsoft oracle paypal postmates reddit snapchat tableau tencent uber
Random Flip Matrix ProblemMediumgoogle
Random Pick Index ProblemMediumfacebook google uber
Blum Floyd Pratt Rivest Tarjan AlgorithmMedium
Reverse Linked List 2 - between m and nMediumadobe amazon apple bloomberg bytedance docusign facebook google microsoft oracle
Equal Average PartitionMediumamazon
Longest String Chain ProblemMediumakuna-capital amazon citadel google sap two-sigma vmware
Delete Operation for Two Strings ProblemMediumgoogle
Word Search 1 - Find if word existsMediumadobe amazon apple bloomberg bytedance coupang coursera cruise-automation docusign facebook google intuit jpmorgan linkedin lyft microsoft oracle pinterest quantcast snapchat uber vmware yahoo zillow
Longest Substring Without Repeating Characters ProblemMediumadobe alation alibaba amazon apple atlassian baidu bloomberg bytedance cisco coupang ebay expedia facebook goldman-sachs google huawei microsoft oracle paypal salesforce samsung sap snapchat spotify twitch uber vmware yahoo yandex yelp zillow zoho
All Possible Full Binary Trees ProblemMediumgoogle oracle
Maximum Sum Circular SubarrayMediumamazon facebook two-sigma uber
Top K Frequent Words ProblemMediumadobe amazon apple atlassian bloomberg expedia facebook google linkedin microsoft oracle pocket-gems salesforce tripadvisor uber vmware yelp
H-Index 2 ProblemMediumfacebook
Delete non-tail Node in linked list, Given only access to that NodeMediumadobe amazon apple bloomberg cisco facebook goldman-sachs google microsoft qualcomm yahoo