TitleDifficultyCompaniesVideos
Remove Nth Node From End of ListMediumadobe amazon apple bloomberg bytedance cisco facebook goldman-sachs google microsoft oracle vmware yandex
Valid Anagram ProblemEasyamazon apple bloomberg cisco docusign expedia facebook goldman-sachs google microsoft morgan-stanley oracle paypal servicenow snapchat uber yahoo yelp zulily
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
Regular Expression Matching ProblemHardadobe airbnb alibaba amazon apple bloomberg bytedance coursera databricks ebay facebook flipkart google houzz lyft microsoft oracle palantir-technologies pocket-gems twitter uber zulily
Wildcard Matching ProblemHardadobe amazon bloomberg bytedance coursera cruise-automation facebook goldman-sachs google microsoft oracle snapchat twitter two-sigma
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
Binary Search Tree BST Inorder IteratorMediumalibaba amazon apple atlassian bloomberg bytedance cisco cloudera ebay facebook google linkedin microsoft oracle qualtrics redfin splunk uber
Next Greater Element 1Easyamazon bloomberg facebook google microsoft oracle twitter
Find All Numbers Disappeared in an ArrayEasyadobe apple bloomberg google microsoft yahoo
Find Pivot IndexEasyamazon apple bloomberg citadel coupang expedia facebook godaddy goldman-sachs google indeed microsoft radius salesforce tesla
Path Sum ProblemEasyadobe amazon apple bloomberg facebook microsoft oracle zillow
Remove duplicates from Sorted List 2Mediumadobe amazon apple bloomberg google microsoft paypal salesforce
Isomorphic Strings ProblemEasyadobe amazon bloomberg facebook google linkedin microsoft oracle salesforce yahoo yelp
Kth Largest Element in a StreamEasyadobe amazon apple bloomberg ebay facebook google microsoft nutanix
Min Cost Climbing StairsEasyamazon bloomberg google yahoo
Search Insert Position in sorted arrayEasyadobe amazon apple bloomberg google microsoft sap
Remove Linked List Elements ProblemEasyadobe amazon apple bloomberg capital-one facebook google microsoft paypal pure-storage uber
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
Happy Number ProblemEasyadobe airbnb amazon apple bloomberg ebay evernote facebook google jpmorgan microsoft nutanix pinterest pure-storage twitter uber
Invert Binary Tree ProblemEasyamazon apple bloomberg facebook google microsoft salesforce vmware
First Unique Character in a StringEasyadobe amazon apple bloomberg facebook goldman-sachs google huawei jpmorgan linkedin microsoft servicenow yahoo zillow zulily
Merge Two Binary TreesEasyadobe amazon apple bloomberg facebook huawei oracle
Palindrome Linked List ProblemEasyadobe amazon apple bloomberg cisco facebook google grab intel ixl microsoft nutanix snapchat vmware
Maximum Product of Three NumbersEasyamazon apple bloomberg cisco citadel coursera facebook goldman-sachs intuit redfin symantec
Integer to English Words ProblemHardamazon apple barclays bloomberg capital-one citrix facebook google jpmorgan linkedin microsoft nutanix oracle palantir-technologies paypal sap splunk square tableau tesla uber visa yahoo yelp zillow
Fizz Buzz ProblemEasyadobe amazon apple bloomberg capital-one cisco google linkedin microsoft oracle salesforce spotify wayfair
Excel Sheet Column Number ProblemEasyamazon apple bloomberg facebook factset google microsoft uber
Count and Say Sequence ProblemMediumadobe amazon apple bloomberg epic-systems facebook google microsoft oracle
ZigZag ConversionMediumadobe amazon apple bloomberg facebook google microsoft paypal uber wish
Next Greater Element 3 - Find smallest number larger than given number using same digitsMediumamazon bloomberg facebook houzz microsoft vmware
Plus One 1 - Given number as array plus oneEasyadobe amazon apple bloomberg capital-one ebay facebook google spotify uber
Moving Average of Last N numbers in a StreamEasyamazon appdynamics bloomberg facebook google indeed microsoft twitter uber
Basic Calculator 1 ProblemHardadobe amazon bloomberg facebook google indeed intuit jump-trading karat microsoft paypal pinterest robinhood roblox snapchat uber
Add Digits in Number ProblemEasyadobe apple bloomberg microsoft
Reverse Linked List 2 - between m and nMediumadobe amazon apple bloomberg bytedance docusign facebook google microsoft oracle
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
Word Search 2 - Return All WordsHardairbnb amazon apple bloomberg bytedance cisco citadel facebook google houzz microsoft oracle roblox salesforce snapchat uber 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
Top K Frequent Words ProblemMediumadobe amazon apple atlassian bloomberg expedia facebook google linkedin microsoft oracle pocket-gems salesforce tripadvisor uber vmware yelp
Delete non-tail Node in linked list, Given only access to that NodeMediumadobe amazon apple bloomberg cisco facebook goldman-sachs google microsoft qualcomm yahoo
H-Index ProblemMediumadobe bloomberg facebook google tripadvisor yahoo
Binary Tree Traversal - Vertical Order TraversalMediumadobe amazon bloomberg bytedance databricks expedia facebook google mathworks microsoft oracle reddit salesforce snapchat wish
Minimum Remove to Make Valid ParenthesesMediumamazon bloomberg bytedance facebook google microsoft
Open the Lock ProblemMediumamazon bloomberg facebook google uber
Trim a Binary Search Tree BSTMediumadobe amazon apple bloomberg facebook google microsoft yahoo
Flatten Binary Tree to Linked List in Order of Preorder TraversalMediumadobe amazon apple bloomberg bytedance coupang databricks facebook google microsoft nvidia oracle uber yahoo
Encode and Decode TinyURL ProblemMediumadobe amazon bloomberg facebook google microsoft oracle uber
Decode String ProblemMediumalibaba amazon appdynamics apple atlassian bloomberg bytedance cisco coupang cruise-automation ebay facebook google huawei hulu microsoft oracle salesforce snapchat tencent vmware yahoo yelp