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
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
UTF-8 ValidationMediumamazon apple facebook google palantir-technologies
Construct String from Binary Tree ProblemMediumamazon
Two Sum 4 - Input is Binary Search TreeEasyamazon facebook microsoft samsung servicenow snapchat google
Binary Search Tree BST Inorder IteratorMediumalibaba amazon apple atlassian bloomberg bytedance cisco cloudera ebay facebook google linkedin microsoft oracle qualtrics redfin splunk uber
Ransom Note ProblemEasyamazon apple microsoft spotify uber
Shift 2D GridEasyamazon facebook
Next Greater Element 1Easyamazon bloomberg facebook google microsoft oracle twitter
Baseball Game ProblemEasyamazon google
Single Number 3 - All elements except two occur twiceMediumamazon apple facebook 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
Power of Two ProblemEasyamazon apple google microsoft nvidia
Can Place Flowers ProblemEasyamazon cisco facebook google linkedin yahoo
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
Number of 1 Bits ProblemEasyadobe amazon apple box cisco facebook google microsoft qualcomm
Min Cost Climbing StairsEasyamazon bloomberg google yahoo
Unique Email Addresses ProblemEasyadobe amazon facebook google microsoft
Length of Last WordEasyamazon
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
Lowest Common Ancestor for a n-ary TreeMediumamazon
Replace Elements with Greatest Element on Right SideEasyamazon
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
Snakes and Ladders ProblemMediumamazon apple cisco facebook google hulu microsoft uber
Excel Sheet Column Number ProblemEasyamazon apple bloomberg facebook factset google microsoft uber
Count Negative Numbers in a Sorted Matrix ProblemEasyamazon
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
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
Plus One 1 - Given number as array plus oneEasyadobe amazon apple bloomberg capital-one ebay facebook google spotify uber
My Calendar 1 ProblemMediumamazon apple google intuit microsoft qualtrics uber
Repeated Substring Pattern ProblemEasyamazon google microsoft
Moving Average of Last N numbers in a StreamEasyamazon appdynamics bloomberg facebook google indeed microsoft twitter uber