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428 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)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)Algorithms(3944)

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Title	Difficulty	Videos	Companies
Amount of New Area Painted Each Day	hard	-
Analyze Organization Hierarchy	hard	-
Analyze Subscription Conversion	medium	-
Can Make Palindrome from Substring	medium	-
DNA Pattern Recognition	medium	-
Fancy Sequence	hard	-
Find Circular Gift Exchange Chains	hard	-
Find Followers Count	easy	-
Find Invalid IP Addresses	hard	-
Find Product Recommendation Pairs	medium	-
Find Products with Three Consecutive Digits	easy	-
Find Products with Valid Serial Numbers	easy	-
Find Students Who Improved	medium	-
Find Valid Emails	easy	-
First Letter Capitalization II	hard	-
Longest Team Pass Streak	hard	-
Maximum Number of Matching Indices After Right Shifts	easy	-
Maximum Product of the Length of Two Palindromic Subsequences	medium	-
Minimum Cost to Make at Least One Valid Path in a Grid	hard	-	google
Minimum Cost Tree From Leaf Values	medium	-
Minimum Difference Between Highest and Lowest of K Scores	easy	-
Minimum Number of Days to Eat N Oranges	hard	-
Number of Restricted Paths From First to Last Node	medium	-
Number of Ways to Rearrange Sticks With K Sticks Visible	hard	-	facebook
Path With Minimum Effort	medium	-
Process Tasks Using Servers	medium	-
Product Sales Analysis I	easy	-	amazon
Smallest String With Swaps	medium	-
Team Dominance by Pass Success	hard	-
Combine Two Tables Problem	easy	-	adobe amazon apple
Second Highest Salary Problem	medium	-	adobe amazon apple
Nth Highest Salary Problem	medium	-	adobe amazon apple
Rank Scores	medium	-	adobe amazon apple
Consecutive Numbers Problem	medium	-	amazon apple
Employees Earning More Than Their Managers Problem	easy	-	adobe amazon apple
Duplicate Emails Problem	easy	-
Customers Who Never Order Problem	easy	-	amazon
Department Highest Salary Problem	medium	-	amazon apple oracle
Department Top Three Salaries Problem	hard	-	adobe amazon google
Delete Duplicate Emails Problem	easy	-	amazon
Rising Temperature Problem	easy	-	adobe
Trips and Users	hard	-	amazon uber
Game Play Analysis I	easy	-	gsn-games
Game Play Analysis II	easy	-	gsn-games
Game Play Analysis III	medium	-	gsn-games
Game Analysis IV	medium	-	facebook gsn-games
Median Employee Salary	hard	-	google
Managers with at Least 5 Direct Reports Problem	medium	-	amazon bloomberg
Find Median Given Frequency of Numbers	hard	-	pinterest
Winning Candidate	medium	-

Showing 1 to 50 of 428 results