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305 problems total

Array (1905)Sorting (440)Depth First Search (316)Database (301)Breadth First Search (241)Tree (240)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)
All Topics(4301)Algorithms(3944)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)

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TitleDifficultyVideosCompanies
Analyze Organization Hierarchyhard-
Analyze Subscription Conversion medium-
Count Employees per departmenteasy-
DNA Pattern Recognition medium-
Find Circular Gift Exchange Chainshard-
Find Followers Counteasy-
Find Invalid IP Addresseshard-
Find Product Recommendation Pairsmedium-
Find Products with Three Consecutive Digits easy-
Find Products with Valid Serial Numberseasy-
Find Students Who Improvedmedium-
Find Valid Emailseasy-
First Letter Capitalization IIhard-
Longest Team Pass Streakhard-
Product Sales Analysis Ieasy-
amazon
Team Dominance by Pass Successhard-
Combine Two Tables Problemeasy-
adobeamazonapple
Second Highest Salary Problemmedium-
adobeamazonapple
Nth Highest Salary Problemmedium-
adobeamazonapple
Rank Scoresmedium-
adobeamazonapple
Consecutive Numbers Problemmedium-
amazonapple
Employees Earning More Than Their Managers Problemeasy-
adobeamazonapple
Duplicate Emails Problemeasy-
Customers Who Never Order Problemeasy-
amazon
Department Highest Salary Problemmedium-
amazonappleoracle
Department Top Three Salaries Problemhard-
adobeamazongoogle
Delete Duplicate Emails Problemeasy-
amazon
Rising Temperature Problemeasy-
adobe
Trips and Usershard-
amazonuber
Game Play Analysis Ieasy-
gsn-games
Game Play Analysis IIeasy-
gsn-games
Game Play Analysis IIImedium-
gsn-games
Game Analysis IVmedium-
facebookgsn-games
Median Employee Salaryhard-
google
Managers with at Least 5 Direct Reports Problemmedium-
amazonbloomberg
Find Median Given Frequency of Numbershard-
pinterest
Winning Candidatemedium-
Employee Bonus Problemeasy-
netsuite
Get Highest Answer Rate Questionmedium-
facebook
Find Cumulative Salary of an Employeehard-
amazon
Count Student Number in Departmentsmedium-
twitter
Find Customer Referee Problemeasy-
amazon
Investments in 2016medium-
twitter
Customer Placing the Largest Number of Orders Problemeasy-
amazontwitter
Big Countries Problemeasy-
adobebloomberg
Classes More Than 5 Students Problemeasy-
Friend Requests I - Overall Acceptance Rate Problemeasy-
facebook
Human Traffic of Stadiumhard-
adobeamazonuber
Friend Requests II - Who Has the Most Friendsmedium-
facebook
Consecutive Available Seatseasy-
Showing 1 to 50 of 305 results
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