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41 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
Add Two Numbers represented as Linked List in Reversed Order	medium	-	adobe aetion airbnb
Regular Expression Matching	hard	-	adobe airbnb alibaba
Merge Two Sorted Linked Lists	easy		adobe airbnb alibaba
Generate Parentheses	medium	-	adobe alibaba amazon
Swap Nodes in Pairs	medium	-	adobe amazon apple
K Reverse a linked list	hard	-	adobe amazon apple
Wildcard Matching	hard	-	adobe amazon bloomberg
Implement Power Function 1	medium	-	adobe amazon apple
Kth Permutation Sequence of Numbers 1 to N	hard	-	amazon apple facebook
Unique Paths in Grid 1 - Count all paths moving right or down	medium		adobe alibaba amazon
Unique Paths in Grid 2 - Count all paths moving right or down with obstacles	medium	-	amazon apple bloomberg
Text Justification	hard	-	airbnb amazon apple
Edit Distance	medium	-	adobe amazon apple
Reorder List such that i-th element points to n-i-th element	medium		adobe amazon apple
Find Minimum in Rotated Sorted Array 2 - Duplicates allowed	hard	-	adobe amazon facebook
House Robber	medium		adobe airbnb amazon
Remove Linked List Elements	easy	-	adobe amazon apple
Reverse Linked List	easy		adobe alibaba amazon
Basic Calculator 1	hard	-	adobe amazon bloomberg
Power of Two	easy	-	amazon apple google
Palindrome Linked List	easy	-	adobe amazon apple
Different Ways to Add Parentheses	medium	-	amazon cisco citadel
Strobogrammatic Number 2 - Generate for length n	medium	-	cisco facebook google
Strobogrammatic Number 3 - Count in Range	hard	-	facebook google
Integer to English Words	hard		amazon apple barclays
Power of Three	easy	-	apple goldman-sachs google
Decode String	medium	-	alibaba amazon appdynamics
Predict the Winner	medium	-	amazon apple google
Longest Palindromic Subsequence 1 - Get Length	medium	-	amazon apple bloomberg
Output Contest Matches	medium	-	google
Flood Fill	easy	-	amazon apple bloomberg
Parse Lisp Expression	hard	-	affirm google
Basic Calculator 4	hard	-	amazon google indeed
Basic Calculator 3	hard	-	amazon apple bytedance
Split BST	medium	-	amazon coupang facebook
K-th Symbol in Grammar	medium	-	amazon google
All Possible Full Binary Trees	medium	-	google oracle
Flip Equivalent Binary Trees	medium		amazon ebay google
Longest Common Subsequence LCS 1 - Get Length	medium		amazon bytedance facebook
Print Immutable Linked List in Reverse	medium	-	google
Count Square Submatrices with All Ones	medium	-	google