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174 problems total

Array (174)Sorting (45)Depth First Search (44)Tree (41)Breadth First Search (35)Linked List (28)Stack (27)Recursion (18)Graph Theory (12)Monotonic Stack (8)Queue (6)Shortest Path (2)

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Title	Difficulty	Videos	Companies
Array With Elements Not Equal to Average of Neighbors	medium	-
Closest Equal Element Queries	medium	-
Two Sum	easy		adobe aetion affirm
Median of Two Sorted Arrays	hard	-	adobe airbnb alibaba
3Sum0 - Find three elements in an array that sum to a zero	medium		adobe akuna-capital alibaba
3Sum - Closest	medium	-	adobe amazon apple
4Sum	medium	-	adobe amazon apple
Longest Bitonic Subsequence	medium	-	microsoft
Maximum Alternating Subsequence Sum	medium	-
Minimum Cost Tree From Leaf Values	medium	-
Next even permutation of a number	medium	-
Permutation Rank	medium	-
Remove duplicates from Sorted Array 1	easy		adobe amazon apple
Remove Element	easy		amazon bloomberg google
Next Permutation	medium	-	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
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 2 - Count all paths moving right or down with obstacles	medium	-	amazon apple bloomberg
Subsets 1	medium		adobe amazon apple
Word Search 1 - Find if word exists	medium		adobe amazon apple
Remove duplicates from Sorted Array 2	medium	-	amazon facebook google
Search in Rotated Sorted Array 2 - Check if number exists - Duplicates allowed	medium	-	adobe amazon bloomberg
Largest Rectangle in Histogram	hard	-	adobe amazon bloomberg
Maximal Rectangle	hard	-	adobe amazon bloomberg
Merge Two Sorted Arrays	easy	-	adobe amazon apple
Subsets 2	medium	-	amazon bloomberg facebook
Construct Binary Tree from Inorder and Postorder Traversal	medium	-	amazon bloomberg facebook
Pascal’s Triangle 1 - Generate first n rows	easy	-	adobe amazon apple
Pascal’s Triangle 2 - Return nth row	easy	-	amazon goldman-sachs google
Maximum Triangle path sum from top to bottom	easy	-	google
Minimum Triangle path sum from top to bottom	medium	-	amazon apple bloomberg
Best Time To Buy And Sell Stock 3 - at most twice	hard	-	amazon apple atlassian
Longest Consecutive Sequence	medium		adobe amazon apple
Surrounded Regions	medium	-	amazon ebay facebook
Candy distribution	hard	-	amazon apple google
Single Number 2 - All elements except one occur thrice	medium	-	adobe amazon facebook
Word Break 1 - Check if word is breakable	medium		adobe amazon apple
Word Break 2 - Construct a sentence	hard		amazon apple audible

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