All TopicsAlgorithmsBackend
DesignConcurrencyDatabaseDatabase
DesignJavaJavascriptObject Oriented
DesignProgramming
LanguageShell
TitleDifficultyCompaniesVideos
Design Twitter (Data Structure Design)Mediumamazon doordash oracle twitter yelp
Insert Delete Search and GetRandom in Constant Time 1 - Dupes not allowedMediumadobe affirm amazon appdynamics apple bloomberg databricks facebook flipkart goldman-sachs google indeed linkedin microsoft oracle pinterest pocket-gems pure-storage quora salesforce twilio twitter two-sigma uber visa vmware yandex yelp
Insert Delete Search and GetRandom in Constant Time 2 - Duplicates allowedHardaffirm amazon apple databricks facebook google linkedin microsoft uber yelp
Letter Case PermutationMediumamazon bloomberg facebook microsoft spotify yelp
Random Pick with WeightMediumamazon apple atlassian doordash facebook google linkedin microsoft rubrik tripadvisor twitter two-sigma uber wish yelp
Top K Frequent ElementsMediumamazon apple bloomberg bytedance ebay facebook goldman-sachs google hulu linkedin microsoft oracle pocket-gems snapchat spotify uber vmware yahoo yelp
Active BusinessesMediumyelp
Destination CityEasyyelp
Minimum Index Sum of Two ListsEasyoracle yelp
Check If a Word Occurs As a Prefix of Any Word in a SentenceEasyyelp
Filter Restaurants by Vegan-Friendly, Price and DistanceMediumyelp
Find the Closest PalindromeHardamazon facebook google microsoft nutanix pinterest uber yelp
Reconstruct ItineraryHardamazon apple bloomberg citadel facebook goldman-sachs google microsoft qualtrics snapchat square twilio uber yandex yelp
Binary Tree Bottom ViewMediumyelp
Intersection of Two Arrays 1 - Unique ElementsEasyamazon apple bloomberg bytedance facebook google indeed jpmorgan linkedin lyft microsoft oracle two-sigma uber yelp
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
Sliding Window MaximumHardadobe alibaba amazon apple bloomberg bytedance citadel coursera databricks facebook google lyft microsoft nutanix oracle pinterest roblox twitter uber vmware wish yelp zenefits
Skyline ProblemHardadobe amazon apple databricks facebook goldman-sachs google houzz microsoft salesforce tableau twitter uber yelp vmware
Word Ladder 1 - Get Ladder LengthHardaffirm amazon apple audible bloomberg cohesity expedia facebook google linkedin lyft microsoft oracle pinterest qualtrics salesforce samsung servicenow snapchat spotify square tesla uber vmware yelp 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
Reverse Words in a StringMediumamazon apple bloomberg cisco citadel facebook google huawei microsoft nvidia oracle qualcomm salesforce snapchat vmware yelp zillow
Longest Common Prefix in array of stringEasyadobe alibaba amazon apple bloomberg cisco ebay facebook google ibm ixl microsoft oracle pinterest quora snapchat splunk twilio visa yelp
Two SumEasyadobe aetion affirm airbnb alibaba amazon apple audible baidu blackrock bloomberg bookingcom box bytedance cisco citadel cloudera deutsche-bank didi drawbridge dropbox ebay emc expedia facebook factset ge-digital godaddy goldman-sachs google groupon huawei ibm indeed intel intuit jpmorgan linkedin lyft mathworks microsoft morgan-stanley netease nvidia oracle paypal qualcomm quora radius roblox salesforce samsung sap servicenow snapchat splunk spotify tableau tencent twilio twitter uber valve visa vmware wish works-applications yahoo yandex yelp zillow zoho
Word Frequency from FileMediumadobe amazon facebook google yelp
Word Break 1 - Check if word is breakableMediumadobe amazon apple audible bloomberg bytedance coupang ebay facebook godaddy google hbo hulu microsoft oracle pinterest pocket-gems qualtrics salesforce snapchat square tripadvisor twilio twitter uber vmware yahoo yelp zillow
Word Ladder 2 - Get all the laddersHardamazon apple bloomberg box facebook google linkedin lyft microsoft oracle pinterest uber yahoo yelp
Merge Overlapping IntervalsMediumadobe alibaba amazon apple atlassian bloomberg bytedance cisco cohesity coupang cruise-automation dataminr doordash ebay facebook godaddy goldman-sachs google intuit linkedin microsoft netflix oracle palantir-technologies paypal pinterest postmates salesforce sap servicenow snapchat sumologic tencent twitch twitter two-sigma uber visa vmware wayfair wish yahoo yandex yelp zulily
Group AnagramsMediumadobe affirm amazon apple bloomberg bookingcom cisco docusign ebay electronic-arts facebook goldman-sachs google hulu intuit mathworks microsoft nutanix oracle qualtrics salesforce servicenow snapchat tesla twilio uber visa vmware wish yahoo yandex yelp zulily robinhood
Combination Sum 1Mediumairbnb akuna-capital amazon apple bloomberg ebay facebook goldman-sachs google jpmorgan linkedin microsoft quora snapchat square uber vmware yelp
Reverse Linked ListEasyadobe alibaba amazon apple bloomberg bytedance cisco citrix docusign ebay electronic-arts facebook factset goldman-sachs google intel mathworks microsoft nvidia oracle paypal qualcomm snapchat spotify tencent tripadvisor twitter uber visa vmware yahoo yandex yelp zenefits
String CompressionMediumakuna-capital amazon apple bloomberg ebay expedia facebook godaddy goldman-sachs google lyft microsoft redfin snapchat spotify wayfair yandex yelp zillow
Valid AnagramEasyamazon 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 NumberMediumamazon 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
Isomorphic StringsEasyadobe amazon bloomberg facebook google linkedin microsoft oracle salesforce yahoo yelp
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
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
Top K Frequent WordsMediumadobe amazon apple atlassian bloomberg expedia facebook google linkedin microsoft oracle pocket-gems salesforce tripadvisor uber vmware yelp
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