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838 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)

All Topics(4301)Database(305)Networking(0)Object Oriented Design(31)Programming Languages(5)System Design(0)Algorithms(3944)

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Title	Difficulty	Videos	Companies
Amount of New Area Painted Each Day	hard	-
Apply Substitutions	medium	-
Assign Elements to Groups with Constraints	medium	-
Brace Expansion	medium	-
Calculate Score After Performing Instructions	medium	-
Can Make Palindrome from Substring	medium	-
Check If a String Contains All Binary Codes of Size K	medium	-
Closest Equal Element Queries	medium	-
Construct K Palindrome Strings	medium		uber
Count Connected Components in LCM Graph	hard	-
Count Covered Buildings	medium	-
Count Special Subsequences	medium	-
Design an Array Statistics Tracker	hard	-
Design Spreadsheet	medium	-
Design Task Manager	medium	-
Design Underground System	medium	-
Equal Sum Grid Partition II	hard	-
Find Mirror Score of a String	medium	-
Find Most Frequent Vowel and Consonant	easy	-
Find the Largest Almost Missing Integer	easy	-
Find the Most Common Response	medium	-
Find Unique Binary String	medium
Find Valid Pair of Adjacent Digits in String	easy	-
Good vs Bad Hash function examples	medium	-
Identify the Largest Outlier in an Array	medium	-
Implement Hierarchical Locking System for Tree Structures	medium	-
Implement Router	medium	-
Increasing Decreasing String	easy	-
Two Sum	easy		adobe aetion affirm
Longest Substring Without Repeating Characters	medium		adobe alation alibaba
Integer To Roman	medium	-	adobe amazon apple
Roman To Integer	easy		adobe amazon apple
Letter Combinations of a Phone Number	medium	-	amazon apple atlassian
Letter Tile Possibilities	medium		google microsoft
Longest Special Path	hard	-
Longest Special Path II	hard	-
Maximum Alternating Subsequence Sum	medium	-
Maximum Frequency After Subarray Operation	medium	-
Maximum Manhattan Distance After K Changes	medium	-
Maximum Number of Matching Indices After Right Shifts	easy	-
Maximum Product of Subsequences With an Alternating Sum Equal to K	hard	-
Maximum Students on a Single Bench	easy	-
Maximum Subarray Sum With Length Divisible by K	medium	-
Maximum Unique Subarray Sum After Deletion	easy	-
Maximum Weighted K-Edge Path	medium	-
Minimum Cost Tree From Leaf Values	medium	-
Minimum Deletions for At Most K Distinct Characters	easy	-
Minimum Number of Days to Eat N Oranges	hard	-
Minimum Number of Operations to Make Elements in Array Distinct	easy	-
Minimum Operations to Convert All Elements to Zero	medium	-

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