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Adobe Master DSA Sheet

This compilation contains exclusive, previously asked data structure and algorithm questions from real Adobe interviews. Focus on these core problem patterns to confidently tackle even the hardest interview challenges.

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Valid Parentheses6 Months
Easy
Top K Frequent Words
Medium
Majority Element II
Medium
Reverse Linked List
Easy
Meeting Rooms II
Medium
Spiral Matrix
Medium
Special Binary String
Hard
Invalid Tweets
Easy
Split the Array
Easy
Reformat Date6 Months
Easy
Subarray Product Less Than K
Medium
Pacific Atlantic Water Flow
Medium
Validate IP Address6 Months
Medium
Jump Game II
Medium
Min Stack
Medium
Minimum Processing Time
Medium
Customer Who Visited but Did Not Make Any Transactions
Easy
Generate Parentheses
Medium
Shopping Offers
Medium
Climbing Stairs
Easy
Find K Closest Elements
Medium
Split Array Largest Sum
Hard
Next Permutation
Medium
Divide Intervals Into Minimum Number of Groups
Medium
Pow(x, n)
Medium
Longest Substring Without Repeating Characters
Medium
Product of Array Except Self
Medium
Koko Eating Bananas
Medium
K Closest Points to Origin
Medium
Maximum Product Subarray
Medium
Search Suggestions System
Medium
Trapping Rain Water6 Months
Hard
Merge Intervals3 Months
Medium
Diameter of Binary Tree
Easy
Longest Palindromic Substring3 Months
Medium
Serialize and Deserialize Binary Tree
Hard
Largest Number
Medium
Count Ways to Build Rooms in an Ant Colony
Hard
Basic Calculator II
Medium
Longest Repeating Character Replacement
Medium
Permutation in String
Medium
Longest Increasing Path in a Matrix
Hard
First Missing Positive
Hard
Minimizing Array After Replacing Pairs With Their Product
Medium
Preimage Size of Factorial Zeroes Function
Hard
Average Time of Process per Machine
Easy
Choose Numbers From Two Arrays in Range
Hard
Sqrt(x)
Easy
Minimum Window Substring6 Months
Hard
Task Scheduler
Medium
Valid Sudoku
Medium
Rotate Image
Medium
Random Pick with Weight
Medium
Bitwise OR of Adjacent Elements
Easy
Find All Numbers Disappeared in an Array
Easy
Container With Most Water
Medium
Roman to Integer
Easy
Reverse Words in a String
Medium
Merge Sorted Array
Easy
Longest Common Subsequence
Medium
Longest Valid Parentheses
Hard
Permutations
Medium
Kth Largest Element in a Stream
Easy
Rotting Oranges
Medium
Remove K Digits6 Months
Medium
Move Zeroes
Easy
Find the Index of the First Occurrence in a String
Easy
String Compression
Medium
Excel Sheet Column Number
Easy
LRU Cache3 Months
Medium
Basic Calculator
Hard
Course Schedule
Medium
Two Sum II - Input Array Is Sorted
Medium
Number of Islands
Medium
Count Binary Substrings
Easy
Contains Duplicate
Easy
Squares of a Sorted Array
Easy
Search in Rotated Sorted Array
Medium
Minimum Moves to Equal Array Elements III
Easy
Two Sum6 Months
Easy
Single Element in a Sorted Array
Medium
Restore IP Addresses
Medium
Longest Common Prefix
Easy
Decode String
Medium
Word Ladder
Hard
Binary Tree Cameras
Hard
Pascal's Triangle
Easy
Heaters30 Days
Medium
Edit Distance
Medium
Maximal Rectangle
Hard
N-Queens
Hard
Letter Combinations of a Phone Number
Medium
Find All Duplicates in an Array
Medium
Gas Station
Medium
Reorder List
Medium
Subarray Sum Equals K
Medium
Decode Ways
Medium
Group Anagrams6 Months
Medium
Merge Two Sorted Lists
Easy
Top K Frequent Elements
Medium
Sort Colors
Medium
Largest Rectangle in Histogram
Hard
Max Consecutive Ones III
Medium
Implement Trie (Prefix Tree)
Medium
Best Time to Buy and Sell Stock II
Medium
Contiguous Array
Medium
Minimum Remove to Make Valid Parentheses
Medium
Lowest Common Ancestor of a Binary Tree
Medium
Best Time to Buy and Sell Stock
Easy
Word Search
Medium
Median of Two Sorted Arrays
Hard
Online Stock Span
Medium
Rotate Array
Medium
Integer to Roman
Medium
Merge k Sorted Lists
Hard
Palindrome Number
Easy
Valid Palindrome
Easy
Maximum Profit From Trading Stocks
Medium
Jump Game6 Months
Medium
Add Two Numbers
Medium
Same Tree
Easy
Majority Element
Easy
Remove Invalid Parentheses
Hard
Reverse Nodes in k-Group
Hard
Subarrays with K Different Integers
Hard
3Sum
Medium
Plus One
Easy
Palindrome Linked List
Easy
First Unique Character in a String
Easy
Unit Conversion I6 Months
Medium
Contains Duplicate II
Easy
Sort Characters By Frequency
Medium
Reverse Substrings Between Each Pair of Parentheses
Medium
Next Greater Element III
Medium
Best Time to Buy and Sell Stock III
Hard
Sliding Window Maximum
Hard
Merge Operations to Turn Array Into a Palindrome
Medium
Unique Paths
Medium
Create a DataFrame from List
Easy
Subsets
Medium
Shortest Unsorted Continuous Subarray
Medium
Sort Array by Increasing Frequency6 Months
Easy
Max Area of Island
Medium
Is Subsequence30 Days
Easy
Binary Tree Zigzag Level Order Traversal
Medium
Remove Duplicates from Sorted Array
Easy
Combination Sum II
Medium
Add Two Integers
Easy
Fruit Into Baskets
Medium
Count Pairs Of Similar Strings
Easy
Kth Largest Element in an Array
Medium
Intersection of Two Arrays
Easy
Sudoku Solver
Hard
Missing Number
Easy
01 Matrix
Medium
Search Insert Position
Easy
Number of Provinces
Medium
Cousins in Binary Tree
Easy
Reverse Integer
Medium
Find Customer Referee
Easy
Merge Strings Alternately
Easy
Happy Number
Easy
Reorganize String
Medium
Coin Change
Medium
Longest Consecutive Sequence
Medium
Remove Element
Easy
Reverse Linked List II
Medium
Reverse Pairs
Hard
Delete Node in a Linked List
Medium
Spiral Matrix II
Medium
Perfect Squares
Medium
Boundary of Binary Tree
Medium
Add Digits
Easy
Validate Binary Search Tree
Medium
String to Integer (atoi)
Medium
Minimum Number of Swaps to Make the String Balanced
Medium
Jewels and Stones
Easy
House Robber
Medium
Search in a Binary Search Tree
Easy
Count Primes
Medium
Binary Tree Level Order Traversal
Medium
Surrounded Regions
Medium
Create Hello World Function
Easy
Subarray Sums Divisible by K
Medium
Find Pivot Index
Easy
Counting Bits
Easy
Binary Subarrays With Sum
Medium
H-Index
Medium
Linked List Cycle
Easy
Plates Between Candles
Medium
Binary Search Tree Iterator
Medium
Minimum Swaps to Group All 1's Together II
Medium
Count Complete Tree Nodes
Easy
Amount of Time for Binary Tree to Be Infected
Medium
Swapping Nodes in a Linked List
Medium
Remove Duplicates from Sorted List
Easy
Single Number
Easy
Construct Binary Tree from Preorder and Inorder Traversal
Medium
Number of Subarrays with Bounded Maximum
Medium
Nested List Weight Sum
Medium
Threshold Majority Queries
Hard
Nim Game
Easy
Shortest Path to Get All Keys
Hard
Running Sum of 1d Array
Easy
Search a 2D Matrix
Medium
To Be Or Not To Be
Easy
First Bad Version
Easy
Remove Duplicates from Sorted Array II
Medium
Design Twitter
Medium
Custom Sort String
Medium
Shortest Path in a Grid with Obstacles Elimination
Hard
Employees Earning More Than Their Managers
Easy
Binary Search
Easy
Bitwise AND of Numbers Range
Medium
Count Subarrays Where Max Element Appears at Least K Times
Medium
Trim a Binary Search Tree
Medium
Smallest Range II
Medium
Minimize XOR
Medium
Bag of Tokens
Medium
Range Sum Query - Mutable
Medium
Sum of All Subset XOR Totals6 Months
Easy
Number of Increasing Paths in a Grid
Hard
Smallest Range I
Easy
Tenth Line
Easy
Largest Combination With Bitwise AND Greater Than Zero6 Months
Medium
Increment Submatrices by One
Medium
Number of Dice Rolls With Target Sum
Medium