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Companies
Uber
Hash Table
Hash Table
0/29 solved
Two Sum
EASY
Longest Substring Without Repeating Characters
MEDIUM
LRU Cache
MEDIUM
Group Anagrams
MEDIUM
Letter Combinations of a Phone Number
MEDIUM
Minimum Window Substring
HARD
First Missing Positive
HARD
Roman to Integer
EASY
Set Matrix Zeroes
MEDIUM
Word Ladder
HARD
Valid Sudoku
MEDIUM
Partition Labels
MEDIUM
Sudoku Solver
HARD
Clone Graph
MEDIUM
Reorganize String
MEDIUM
Integer to Roman
MEDIUM
Word Ladder II
HARD
Design HashMap
EASY
Time Based Key-Value Store
MEDIUM
Longest Arithmetic Subsequence
MEDIUM
Split Array into Consecutive Subsequences
MEDIUM
Bus Routes
HARD
Regions Cut By Slashes
MEDIUM
Replace Words
MEDIUM
Longest Substring with At Most K Distinct Characters
MEDIUM
Number of Nodes in the Sub-Tree With the Same Label
MEDIUM
Construct K Palindrome Strings
MEDIUM
Check Array Formation Through Concatenation
EASY
Escape a Large Maze
HARD