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3562 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)

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Title	Difficulty	Videos	Companies
Amount of New Area Painted Each Day	hard	-
Analyze Organization Hierarchy	hard	-
Analyze Subscription Conversion	medium	-
Apply Substitutions	medium	-
Array With Elements Not Equal to Average of Neighbors	medium	-
Assign Elements to Groups with Constraints	medium	-
Best Position for a Service Centre	hard	-	reddit
Binary Tree Level Order Traversal	medium		microsoft
Binary Tree Path Sum - Find all paths between any two nodes	medium	-
Bishop diagonally attack on chess board	medium	-	google
Brace Expansion	medium	-
Button with Longest Push Time	easy	-
Calculate Score After Performing Instructions	medium	-
Can Make Palindrome from Substring	medium	-
Car Pooling	medium	-
Check If a String Contains All Binary Codes of Size K	medium	-
Check If Digits Are Equal in String After Operations I	easy	-
Check If Digits Are Equal in String After Operations II	hard	-
Choose K Elements With Maximum Sum	medium	-
Closest Equal Element Queries	medium	-
Concatenated Divisibility	hard	-
Construct K Palindrome Strings	medium		uber
Count Beautiful Numbers	hard	-
Count Beautiful Splits in an Array	medium	-
Count Cells in Overlapping Horizontal and Vertical Substrings	medium	-
Count Connected Components in LCM Graph	hard	-
Count Covered Buildings	medium	-
Count Mentions Per User	medium	-
Count Non-Decreasing Subarrays After K Operations	hard	-
Count Numbers with Non-Decreasing Digits	hard	-
Count Partitions with Even Sum Difference	easy	-
Count Paths With the Given XOR Value	medium	-
Count Sorted Vowel Strings	medium	-
Count Special Subsequences	medium	-
Count Subarrays of Length Three With a Condition	easy	-
Count Substrings Divisible By Last Digit	hard	-
Count the Number of Arrays with K Matching Adjacent Elements	hard	-
Create Sorted Array through Instructions	hard	-
Delivering Boxes from Storage to Ports	hard	-
Design a 3D Binary Matrix with Efficient Layer Tracking	medium	-
Design an Array Statistics Tracker	hard	-
Design Spreadsheet	medium	-
Design Task Manager	medium	-
Design Underground System	medium	-
Digit Operations to Make Two Integers Equal	medium	-
DNA Pattern Recognition	medium	-
Eat Pizzas!	medium	-
Equal Sum Grid Partition I	medium	-
Equal Sum Grid Partition II	hard	-
Fancy Sequence	hard	-

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