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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
0-1 Knapsack Problem	medium	-
0-1 Knapsack with Gold Bars	medium	-
2Sum - 0 - closest - Find two elements whose sum is closest to zero	medium	-
3Sum - Classic	medium	-	microsoft
4Sum - Output in Sorted Order	medium	-
Add Two Numbers represented as Linked List	medium	-
Aggregate Sum Over Partitions With Parts at least K	medium	-
All Permutations of a String with distinct characters	medium	-
All Permutations of a String with duplicate characters	medium	-
Alternating Two-Instance Singleton Pattern	medium	-	google
Analyze Subscription Conversion	medium	-
Apply Substitutions	medium	-
Approximate Median in Sub-linear Time	medium	-	dropbox
Arrange Given Number To Form The Biggest Number Possible	medium	-	uber
Array With Elements Not Equal to Average of Neighbors	medium	-
Array-based Trie Implementation	medium	-
Assign Elements to Groups with Constraints	medium	-
Autocomplete Suggestion System	medium	-	twitter
Backend Design for Restaurant Reservation System	medium	-
Bartender Drink Optimization	medium	-	amazon
Basic Euclidean Algorithm to find GCD of two numbers using modulo operator	medium	-
Best Time To Buy And Sell Stock - Any number of times - Overlapping Transactions	medium	-
Binary Search on a linked list	medium	-
Binary Tree Bottom View	medium	-	yelp
Binary Tree Left Side View	medium	-
Binary Tree Level Order Traversal	medium		microsoft
Binary Tree Path Sum - Find all paths between any two nodes	medium	-
Binary Tree Path Sum - Maximum between any two leaves	medium	-
Binary Tree Path Sum - Maximum Sum Leaf to Root path	medium	-
Binary Tree Path Sum - Maximum Sum Root to Leaf path	medium	-
Binary Tree Top View	medium	-
Bishop diagonally attack on chess board	medium	-	google
Bloom Filter Implementation	medium	-	triplebyte
Blum Floyd Pratt Rivest Tarjan Algorithm	medium	-
Boyer-Moore String Searching	medium	-
Brace Expansion	medium	-
Break a string into lines of length k without breaking words	medium	-	amazon
Breaking an integer into the sum of pairwise distinct positive integers	medium	-
Buildings with sunset view	medium	-	mailchimp
Calculate Hash Code for String	medium	-
Calculate Rolling Hashcode for String	medium	-
Calculate Score After Performing Instructions	medium	-
Calculate the Binomial Coefficient	medium	-
Calculate the number of valid stack permutations	medium	-
Can Make Palindrome from Substring	medium	-
Capitalize the first character of each word in a given text	medium	-
Car Pooling	medium	-
Car Refuelling Algorithm	medium	-
Catalan Numbers	medium	-
Celebration Party	medium	-

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