Title Difficulty Companies Videos
Min Stack Medium adobe 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 Easy adobe airbnb amazon apple bloomberg ebay evernote facebook google jpmorgan microsoft nutanix pinterest pure-storage twitter uber
Lowest Common Ancestor of a Binary Tree 3 - Given Parent Pointer Medium facebook twitter
Invert Binary Tree Easy amazon apple bloomberg facebook google microsoft salesforce vmware
First Unique Character in a String Easy adobe amazon apple bloomberg facebook goldman-sachs google huawei jpmorgan linkedin microsoft servicenow yahoo zillow zulily
Substring with Concatenation of All Words Hard adobe amazon apple bloomberg dropbox facebook google microsoft
Merge Two Binary Trees Easy adobe amazon apple bloomberg facebook huawei oracle
Palindrome Linked List Problem Easy adobe amazon apple bloomberg cisco facebook google grab intel ixl microsoft nutanix snapchat vmware
Maximum Product of Three Numbers Easy amazon apple bloomberg cisco citadel coursera facebook goldman-sachs intuit redfin symantec
Integer to English Words Problem Hard amazon 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
Intersection of Three Sorted Arrays Easy facebook tripadvisor
Snakes and Ladders Problem Medium amazon apple cisco facebook google hulu microsoft uber
Excel Sheet Column Number Problem Easy amazon apple bloomberg dropbox facebook factset google microsoft uber
Count and Say Sequence Problem Medium adobe amazon apple bloomberg epic-systems facebook google microsoft oracle
ZigZag Conversion Medium adobe amazon apple bloomberg facebook google microsoft paypal uber wish
Next Greater Element 3 - Find smallest number larger than given number using same digits Medium amazon bloomberg facebook houzz microsoft vmware
Largest Number From Given Numbers Medium amazon apple bytedance facebook google microsoft oracle salesforce uber works-applications
Plus One 1 - Given number as array plus one Easy adobe amazon apple bloomberg capital-one ebay facebook google spotify uber
Moving Average of Last N numbers in a Stream Easy amazon appdynamics bloomberg facebook google indeed microsoft twitter uber
Design HashMap Problem Easy adobe amazon apple atlassian dell facebook goldman-sachs google linkedin microsoft nvidia oracle reddit salesforce servicenow tableau twitter uber vmware
Ugly Number Problem Easy facebook
Basic Calculator 3 Problem Hard amazon apple bytedance doordash facebook google houzz hulu jingchi microsoft pinterest pocket-gems snapchat uber
Basic Calculator 2 Problem Medium airbnb amazon apple atlassian doordash ebay facebook google houzz indeed intuit ixl microsoft oracle paypal postmates reddit snapchat tableau tencent uber
Basic Calculator 1 Problem Hard adobe amazon bloomberg facebook google indeed intuit jump-trading karat microsoft paypal pinterest robinhood roblox snapchat uber
Friend Requests I - Overall Acceptance Rate Problem Easy facebook
Employees Earning More Than Their Managers Problem Easy adobe amazon apple facebook google
User Activity for the Past 30 Days II Easy facebook
Random Pick Index Problem Medium facebook google uber
Reservoir Sampling Explained facebook
Reverse Linked List 2 - between m and n Medium adobe amazon apple bloomberg bytedance docusign facebook google microsoft oracle
Binary Tree Cameras Problem Hard ebay facebook google uber
Word Search 1 - Find if word exists Medium adobe 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 Words Hard airbnb amazon apple bloomberg bytedance cisco citadel facebook google houzz microsoft oracle roblox salesforce snapchat uber yahoo zillow
Longest Substring Without Repeating Characters Medium adobe 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 Numbers Medium amazon bloomberg ebay facebook google microsoft
Maximum Sum Circular Subarray Medium amazon facebook two-sigma uber
Top K Frequent Words Problem Medium adobe amazon apple atlassian bloomberg expedia facebook google linkedin microsoft oracle pocket-gems salesforce tripadvisor uber vmware yelp
H-Index 2 Problem Medium facebook
Delete non-tail Node in linked list, Given only access to that Node Medium adobe amazon apple bloomberg cisco facebook goldman-sachs google microsoft qualcomm yahoo
H-Index Problem Medium adobe bloomberg facebook google tripadvisor yahoo
Binary Tree Traversal - Vertical Order Traversal Medium adobe amazon bloomberg bytedance databricks expedia facebook google mathworks microsoft oracle reddit salesforce snapchat wish
Design Add and Search Words Data Structure Medium airbnb amazon apple ebay facebook google microsoft salesforce uber
Design Circular Queue Problem Medium airbnb amazon apple citadel cloudera facebook google microsoft oracle splunk
Minimum Remove to Make Valid Parentheses Medium amazon bloomberg bytedance facebook google microsoft
Serialize and Deserialize N-Ary Tree Hard amazon apple ebay facebook google linkedin microsoft pinterest uber
Open the Lock Problem Medium amazon bloomberg facebook google uber
Partition Labels Problem Medium amazon apple facebook
Trim a Binary Search Tree BST Medium adobe amazon apple bloomberg facebook google microsoft yahoo
Flatten Binary Tree to Linked List in Order of Preorder Traversal Medium adobe amazon apple bloomberg bytedance coupang databricks facebook google microsoft nvidia oracle uber yahoo
Encode and Decode TinyURL Problem Medium adobe amazon bloomberg facebook google microsoft oracle uber