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98 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)

All Topics(4301)Database(0)Java(0)Networking(0)Object Oriented Design(1)System Design(0)Algorithms(522)

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Title	Difficulty	Videos	Companies
Chess King Check Detector	hard	-	Oracle
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
Integer To Roman	medium	-	adobe amazon apple
Roman To Integer	easy		adobe amazon apple
3Sum0 - Find three elements in an array that sum to a zero	medium		adobe akuna-capital alibaba
Letter Combinations of a Phone Number	medium	-	amazon apple atlassian
Remove Nth Node From End of List	medium		adobe amazon apple
Merge Two Sorted Linked Lists	easy		adobe airbnb alibaba
Merge K Sorted Lists	hard		adobe airbnb alibaba
Remove duplicates from Sorted Array 1	easy		adobe amazon apple
Find the Index of the First Occurrence in a String	easy	-	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
First Missing Positive	hard	-	adobe amazon apple
Trapping Rain Water	hard		adobe affirm airbnb
Wildcard Matching	hard	-	adobe amazon bloomberg
Jump Game 2 - Get min jumps	medium	-	adobe amazon apple
Permutations of Array 1	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
Climbing Stairs - Take atmost 2 Steps	easy		adobe alibaba amazon
Minimum Window Substring	hard		adobe airbnb amazon
Word Search 1 - Find if word exists	medium		adobe amazon apple
Merge Two Sorted Arrays	easy	-	adobe amazon apple
Decode Ways	medium		adobe amazon apple
Reverse Linked List 2 - between m and n	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
Binary Tree Traversal - Zigzag Level Order Traversal	medium	-	amazon apple bloomberg
Binary Tree Traversal - Level Order Bottom up	medium	-	adobe amazon apple
Convert Sorted List into a height-balanced Binary search Tree	medium	-	amazon bloomberg facebook
Pascal’s Triangle 2 - Return nth row	easy	-	amazon goldman-sachs google
Valid Palindrome	easy		adobe amazon apple
Word Ladder 2 - Get all the ladders	hard	-	amazon apple bloomberg
Word Ladder 1 - Get Ladder Length	hard	-	affirm amazon apple
Longest Consecutive Sequence	medium		adobe amazon apple
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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