PrepFlow
Jobs
ATS Checker
Companies
DSA Sheets
Compiler
PrepFlow
Sign in
Login Required!
You need to log in to access your saved progress.
Companies
Adobe
Hash Table
Hash Table
0/31 solved
Two Sum
EASY
Longest Substring Without Repeating Characters
MEDIUM
Subarray Sum Equals K
MEDIUM
LRU Cache
MEDIUM
Group Anagrams
MEDIUM
Letter Combinations of a Phone Number
MEDIUM
Minimum Window Substring
HARD
First Missing Positive
HARD
Construct Binary Tree from Preorder and Inorder Traversal
MEDIUM
Roman to Integer
EASY
Set Matrix Zeroes
MEDIUM
Valid Anagram
EASY
Contains Duplicate
EASY
Permutation in String
MEDIUM
Valid Sudoku
MEDIUM
Happy Number
EASY
Partition Labels
MEDIUM
Sudoku Solver
HARD
Clone Graph
MEDIUM
Insert Delete GetRandom O(1)
MEDIUM
First Unique Character in a String
EASY
Construct Binary Tree from Inorder and Postorder Traversal
MEDIUM
Integer to Roman
MEDIUM
Ugly Number II
MEDIUM
Number of Good Pairs
EASY
Maximum Frequency Stack
HARD
Design HashSet
EASY
Sliding Window Median
HARD
Substring with Concatenation of All Words
HARD
Longest Well-Performing Interval
MEDIUM
Count Good Meals
MEDIUM