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19 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
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
Merge Two Sorted Arrays	easy	-	adobe amazon apple
Insertion Sort on List	medium	-	bloomberg google microsoft
Sort a Linked List	medium	-	adobe amazon bytedance
Majority Element - Boyer–Moore majority vote algorithm	easy	-	adobe amazon apple
Kth Largest Element in an Array	medium		adobe airbnb alibaba
Majority Element 2 - With n by 3 definition	medium	-	adobe amazon apple
Meeting Rooms 1 - Can person attend all meetings	easy		amazon bloomberg facebook
Wiggle Sort 1	medium	-	airbnb amazon facebook
Binary Tree Traversal - Vertical Order Traversal	medium	-	adobe amazon bloomberg
Intersection of Two Arrays 2 - Duplicates allowed	easy	-	amazon apple bloomberg
Russian Doll Envelopes	hard	-	amazon google microsoft
Kth Smallest Element in a Sorted Matrix	medium	-	adobe amazon apple
Non-overlapping Intervals	medium		amazon apple bloomberg
Top K Frequent Words	medium	-	adobe amazon apple
K closest Points to Origin	medium	-	amazon apple asana
Vertical Order Traversal of a Binary Tree	hard	-	adobe amazon bloomberg