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126 problems total

Array (176)Sorting (46)Depth First Search (44)Tree (41)Breadth First Search (35)Stack (29)Linked List (28)Recursion (18)Graph Theory (12)Monotonic Stack (10)Queue (7)Shortest Path (2)

All Topics(4301)Bash(0)Database(0)Java(0)Javascript(0)Networking(0)Object Oriented Design(1)Programming Languages(0)SQL(0)System Design(0)Algorithms(525)

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Title	Difficulty	Videos	Companies
Arrange Given Number To Form The Biggest Number Possible	medium	-	uber
Balanced delimiters in an expression	easy	-	uber
Decode a string to all valid interpretations	medium	-	uber
Election Voting Machine Monitor	easy	-	uber
Implement a 2D iterator class	medium	-	uber
Two Sum	easy		adobe aetion affirm
Add Two Numbers represented as Linked List in Reversed Order	medium	-	adobe aetion airbnb
Longest Substring Without Repeating Characters	medium		adobe alation alibaba
Median of Two Sorted Arrays	hard	-	adobe airbnb alibaba
Longest Palindromic Substring	medium		adobe airbnb alibaba
Regular Expression Matching	hard	-	adobe airbnb alibaba
Roman To Integer	easy		adobe amazon apple
3Sum0 - Find three elements in an array that sum to a zero	medium		adobe akuna-capital alibaba
3Sum - Closest	medium	-	adobe amazon apple
Letter Combinations of a Phone Number	medium	-	amazon apple atlassian
Longest increasing subarray	medium	-	uber
Merge Two Sorted Linked Lists	easy		adobe airbnb alibaba
Generate Parentheses	medium	-	adobe alibaba amazon
Merge K Sorted Lists	hard		adobe airbnb alibaba
Remove duplicates from Sorted Array 1	easy		adobe amazon apple
Next Permutation	medium	-	adobe amazon apple
Longest Valid Parentheses	hard	-	adobe amazon apple
Search in Rotated Sorted Array	medium		adobe alibaba amazon
Find first and last positions of target element in sorted array	medium	-	airbnb amazon apple
Combination Sum 2 - Cant Reuse same element	medium	-	adobe amazon apple
First Missing Positive	hard	-	adobe amazon apple
Trapping Rain Water	hard		adobe affirm airbnb
Rotate n x n matrix by 90 degrees	medium		adobe akuna-capital amazon
Jump Game 2 - Get min jumps	medium	-	adobe amazon apple
Permutations of Array 1	medium	-	adobe amazon apple
Permutations of Array 2 - Array has duplicates	medium	-	adobe amazon apple
Implement Power Function 1	medium	-	adobe amazon apple
Maximum Subarray Sum	medium		adobe alibaba amazon
Spiral Matrix 1 - Return	medium		adobe amazon apple
Jump Game 1 - Check if it reaches last index	medium		adobe amazon apple
Insert Interval	medium		adobe amazon apple
Spiral Matrix 2 - Generate	medium		adobe amazon apple
Unique Paths in Grid 1 - Count all paths moving right or down	medium		adobe alibaba amazon
Square root of an integer	easy	-	amazon apple bloomberg
Climbing Stairs - Take atmost 2 Steps	easy		adobe alibaba amazon
Minimum Window Substring	hard		adobe airbnb amazon
Subsets 1	medium		adobe amazon apple
Word Search 1 - Find if word exists	medium		adobe amazon apple
Maximal Rectangle	hard	-	adobe amazon bloomberg
Merge Two Sorted Arrays	easy	-	adobe amazon apple
Decode Ways	medium		adobe amazon apple
Binary Tree Inorder Traversal	easy	-	alibaba amazon apple
Validate Binary Search Tree	medium		adobe amazon apple
Binary Tree Level Order Traversal - Level by Level	medium		adobe amazon apple
Maximum Depth of Binary Tree	easy		adobe amazon apple

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