All TopicsAlgorithmsBackend
DesignConcurrencyDatabaseDatabase
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TitleDifficultyCompaniesVideos
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 1 - Check if root to leaf path existsEasyadobe amazon apple bloomberg facebook microsoft oracle zillow uber
Remove duplicates from Sorted List 2Mediumadobe amazon apple bloomberg google microsoft paypal salesforce
Isomorphic StringsEasyadobe 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 ElementsEasyadobe amazon apple bloomberg capital-one facebook google microsoft paypal pure-storage uber
Min StackMediumadobe 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 NumberEasyadobe airbnb amazon apple bloomberg ebay evernote facebook google jpmorgan microsoft nutanix pinterest pure-storage twitter uber
Invert Binary TreeEasyamazon 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
Substring with Concatenation of All WordsHardadobe amazon apple bloomberg dropbox facebook google microsoft
Merge Two Binary TreesEasyadobe amazon apple bloomberg facebook huawei oracle salesforce
Palindrome Linked ListEasyadobe 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
Shortest Unsorted Continuous SubarrayMediumamazon bloomberg google liveramp redfin uber whatsapp
Integer to English WordsHardamazon 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 BuzzEasyadobe amazon apple bloomberg capital-one cisco google linkedin microsoft oracle salesforce spotify wayfair
Excel Sheet Column NumberEasyamazon apple bloomberg dropbox facebook factset google microsoft uber
Count and Say SequenceMediumadobe amazon apple bloomberg epic-systems facebook google microsoft oracle
ZigZag ConversionMediumadobe amazon apple bloomberg facebook google microsoft paypal uber wish
Design Search Autocomplete SystemHardamazon apple bloomberg dropbox facebook google lyft microsoft salesforce snapchat uber
Next Greater Element 3 - Find smallest number larger than given number using same digits 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
Kth Smallest Element in a Sorted MatrixMediumadobe amazon apple bloomberg facebook google microsoft twitter uber yahoo
Print in Order ProblemEasyadobe amazon apple bloomberg google microsoft
Moving Average of Last N numbers in a StreamEasyamazon appdynamics bloomberg facebook google indeed microsoft twitter uber
Basic Calculator 1Hardadobe amazon bloomberg facebook google indeed intuit jump-trading karat microsoft paypal pinterest robinhood roblox snapchat uber
Add Digits in NumberEasyadobe apple bloomberg microsoft
Reverse Linked List 2 - between m and nMediumadobe amazon apple bloomberg bytedance docusign facebook google microsoft oracle
Minimum Triangle path sum from top to bottomMediumamazon apple bloomberg goldman-sachs google houzz microsoft
First Bad VersionEasyadobe amazon bloomberg facebook google microsoft uber
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 CharactersMediumadobe 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
Sum Root to Leaf NumbersMediumamazon bloomberg ebay facebook google microsoft
Top K Frequent WordsMediumadobe 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-IndexMediumadobe 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 LockMediumamazon bloomberg facebook google uber citrix
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 TinyURLMediumadobe amazon bloomberg facebook google microsoft oracle uber
Decode StringMediumalibaba amazon appdynamics apple atlassian bloomberg bytedance cisco coupang cruise-automation ebay facebook google huawei hulu microsoft oracle salesforce snapchat tencent vmware yahoo yelp
Maximum Intervals Overlap CountMediumamazon apple atlassian bloomberg bookingcom cisco citadel citrix drawbridge ebay expedia facebook godaddy goldman-sachs google lyft microsoft nutanix oracle paypal postmates quora snapchat uber visa yelp