TitleDifficultyCompaniesVideos
Max Stack ProblemHardamazon bloomberg facebook google linkedin lyft microsoft pure-storage snapchat twitter
Design Skiplist ProblemHardebay google microsoft pure-storage twitter
Valid Square ProblemMediumfacebook google pure-storage
Dutch National Flag DNFMediumamazon apple bloomberg ebay facebook google linkedin microsoft oracle paypal pocket-gems pure-storage uber vmware yahoo
Longest Palindromic Substring ProblemMediumadobe airbnb alibaba amazon appdynamics apple bloomberg cisco ebay facebook godaddy google huawei jpmorgan mathworks microsoft nutanix oracle paypal pure-storage roblox samsung sap servicenow tencent uber vmware wayfair yahoo yandex
2Sum 2 – Input array is sortedMediumamazon apple bloomberg bytedance expedia facebook goldman-sachs google microsoft paypal pure-storage
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