TitleDifficultyCompaniesVideos
Number of IslandsMediumadobe affirm alibaba amazon appdynamics apple arista-networks atlassian audible blackrock bloomberg bytedance cisco citadel citrix cohesity cruise-automation doordash ebay electronic-arts evernote expedia facebook godaddy goldman-sachs google houzz hulu jpmorgan linkedin liveramp lyft mathworks microsoft nutanix nvidia oracle palantir-technologies paypal qualtrics roblox salesforce servicenow snapchat splunk spotify square sumologic tableau twitch twitter uber visa vmware wish yahoo zenefits zulily
Consecutive Numbers ProblemMediumamazon apple
Combine Two Tables ProblemEasyadobe amazon apple google yahoo
Excel Sheet Column Title ProblemEasyadobe apple facebook factset google microsoft yahoo zenefits
Reorder List such that i-th element points to n-i th elementMediumadobe amazon apple bytedance cisco ebay facebook google linkedin microsoft splunk tencent
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
Best Time To Buy And Sell Stock 3 - at most twiceHardamazon apple atlassian bloomberg citadel facebook flipkart google microsoft rubrik two-sigma
Best Time To Buy And Sell Stock 2 - Any number of timesMediumadobe amazon apple bloomberg citadel facebook goldman-sachs google microsoft oracle uber yahoo
Path Sum 2 - find all root to leaf pathsMediumadobe amazon apple baidu bloomberg bytedance facebook google linkedin microsoft oracle quora vmware zillow
Binary Tree Traversal - Level Order Bottom upMediumadobe amazon apple microsoft oracle
Decode Ways ProblemMediumadobe amazon apple baidu barclays bloomberg cisco databricks expedia facebook goldman-sachs google huawei lyft microsoft oracle pinterest snapchat square twitter uber
Edit Distance ProblemMediumadobe amazon apple baidu bloomberg bytedance facebook goldman-sachs google intuit linkedin microsoft paypal qualcomm square uber vmware yahoo
Text JustificationHardairbnb amazon apple box coursera facebook google indeed intuit linkedin lyft microsoft palantir paypal pinterest robinhood snapchat twilio twitter uber
Unique Paths in Grid 2 - Count all paths moving right or down with obstaclesMediumamazon apple bloomberg cruise-automation epic-systems facebook godaddy goldman-sachs google mathworks microsoft qualcomm snapchat vmware yahoo
Spiral Matrix 2 - GenerateMediumadobe amazon apple facebook google jpmorgan microsoft oracle robinhood uber yandex
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 Anagrams ProblemMediumadobe 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
Trapping Rain Water ProblemHardadobe affirm airbnb amazon apple audible bloomberg bytedance citadel databricks dataminr ebay electronic-arts facebook flipkart goldman-sachs google grab huawei lyft microsoft nvidia oracle palantir-technologies qualtrics salesforce servicenow snapchat tableau twitter uber visa wish yahoo yandex zenefits
Combination Sum 2 - Cant Reuse same elementMediumadobe amazon apple bloomberg ebay facebook google linkedin microsoft nutanix snapchat uber
First Missing Positive ProblemHardadobe amazon apple bloomberg bytedance databricks ebay facebook google grab inmobi microsoft model-N morgan-stanley oracle pocket-gems salesforce sap stripe tesla twitch uber vmware wayfair wish
Combination Sum 1 ProblemMediumairbnb akuna-capital amazon apple bloomberg ebay facebook goldman-sachs google jpmorgan linkedin microsoft quora snapchat square uber vmware yelp
Find first and last positions of target element in sorted arrayMediumairbnb amazon apple bloomberg bytedance facebook google linkedin microsoft netflix oracle qualtrics quip uber visa yahoo yandex
Search in Rotated Sorted ArrayMediumadobe alibaba amazon apple baidu bloomberg bytedance cisco ebay expedia facebook goldman-sachs google ixl jpmorgan linkedin microsoft netease nutanix nvidia oracle paypal salesforce samsung snapchat tencent tesla tripadvisor twitch uber visa vmware yahoo yandex zillow zulily
Add Binary StringsEasyadobe amazon apple facebook google microsoft oracle
3Sum - ClosestMediumadobe amazon apple bloomberg facebook goldman-sachs google microsoft sap uber vmware yandex
Majority Element - Boyer–Moore majority vote algorithmEasyadobe amazon apple google microsoft oracle snapchat tencent twitter yahoo zenefits
Reverse Vowels of a StringEasyamazon apple facebook google
Capacity To Ship Packages Within D Days ProblemMediumamazon apple google uber
LFU Cache ProblemHardadobe alibaba amazon apple bloomberg goldman-sachs google linkedin microsoft salesforce snapchat uber vmware
Design LRU CacheMediumadobe alibaba amazon apple asana baidu bloomberg bytedance cisco citadel cloudera cruise-automation docusign doordash dropbox ebay expedia facebook godaddy goldman-sachs google groupon hbo intuit jpmorgan linkedin lyft microsoft morgan-stanley nutanix nvidia oracle palantir-technologies paypal pinterest roblox salesforce sap snapchat splunk spotify tesla tripadvisor twilio twitch twitter two-sigma uber visa vmware wish yahoo yandex zenefits zillow
Insert IntervalMediumadobe amazon apple dataminr facebook google linkedin microsoft oracle tableau twitter uber
Symmetric Binary Tree ProblemEasyadobe alibaba amazon apple atlassian audible bloomberg facebook google linkedin microsoft oracle salesforce sap tripadvisor twitter uber visa vmware yandex
Single Number 1 - All elements except one occur twiceEasyadobe airbnb amazon apple atlassian bloomberg facebook google microsoft oracle palantir-technologies tencent
Reverse StringEasyadobe amazon apple bloomberg cisco ebay facebook godaddy goldman-sachs google microsoft oracle paypal servicenow snapchat uber
Remove duplicates from Sorted List 1Easyadobe amazon apple bytedance ebay facebook google microsoft salesforce
2Sum 2 – Input array is sortedMediumamazon apple bloomberg bytedance expedia facebook goldman-sachs google microsoft paypal pure-storage
Best Time To Buy And Sell Stock 1 - only one transactionEasyadobe akuna-capital alibaba amazon apple atlassian audible blackrock bloomberg bytedance cisco citadel deutsche-bank doordash expedia facebook goldman-sachs google grab groupon intel jpmorgan linkedin lyft microsoft morgan-stanley oracle paypal redfin sap snapchat tableau tencent uber visa vmware yahoo zillow
Merge Two Sorted ArraysEasyadobe amazon apple baidu bloomberg bytedance cisco ebay expedia facebook goldman-sachs google ibm indeed linkedin lyft microsoft netflix oracle quip tableau uber vmware yahoo yandex
Move Zeroes at the end of arrayEasyadobe amazon apple bloomberg cohesity dell ebay facebook goldman-sachs google lyft microsoft nutanix oracle paypal qualcomm sap tesla uber yahoo yandex zillow
Squares of a Sorted array ProblemEasyadobe amazon apple bloomberg bytedance ebay electronic-arts facebook google jane-street microsoft nutanix oracle paypal splunk twitch uber vmware
Valid Palindrome ProblemEasyadobe amazon apple bloomberg cisco ebay facebook google linkedin microsoft oracle spotify uber wayfair wish yandex zenefits
Remove duplicates from Sorted Array 1Easyadobe amazon apple bloomberg cisco cohesity ebay facebook google hulu microsoft oracle servicenow uber vmware
Reverse Linked List ProblemEasyadobe 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
Permutations of Array 1Mediumadobe amazon apple atlassian bloomberg bytedance cisco ebay facebook garena godaddy goldman-sachs google linkedin microsoft netease oracle paypal salesforce sap uber vmware yahoo
Evaluation function for Tic-Tac-ToeEasyamazon apple facebook zoho
Integer To Roman ProblemMediumadobe amazon apple blackrock bloomberg evernote facebook google linkedin microsoft opendoor oracle paypal salesforce twitter yahoo
Roman To Integer ProblemEasyadobe amazon apple bloomberg facebook goldman-sachs google linkedin microsoft oracle qualtrics uber yahoo zillow
String Compression ProblemMediumakuna-capital amazon apple bloomberg ebay expedia facebook godaddy goldman-sachs google lyft microsoft redfin snapchat spotify wayfair yandex yelp zillow
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