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Companies
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Hash Table
Hash Table
0/15 solved
Letter Combinations of a Phone Number
MEDIUM
Minimum Window Substring
HARD
Top K Frequent Elements
MEDIUM
Implement Trie (Prefix Tree)
MEDIUM
Task Scheduler
MEDIUM
Sudoku Solver
HARD
Reorganize String
MEDIUM
Ransom Note
EASY
Bus Routes
HARD
Smallest Range Covering Elements from K Lists
HARD
Longest Word in Dictionary
MEDIUM
Number of Atoms
HARD
Meeting Rooms III
HARD
Subdomain Visit Count
MEDIUM
Sparse Matrix Multiplication
MEDIUM