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1,053 leaked OAs,
reported by real candidates.

Every Online Assessment reported across 133 companies and 29 months. Yours is probably in here. If it isn't, StealthCoder runs invisibly on it anyway.

⏵ What candidates are seeing right now

1,053 OAs reported across 133 companies. 55 reported in the last 30 days. Most recent: May 2026. Top pattern this cycle: string (4% of classified reports).

⏵ If your OA is in the next 72 hours

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Reported recently

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May 2026 (32)

Whatnot
User Journey Paths
Airbnb
Print Sentences as Table
Snowflake
Minimum Index Distance Between Person and Cake
Snowflake
Minimum Clicks Between Wiki Pages
Upstart
Bounding Box from Coordinates
Upstart
Filter by Threshold and Return Name with Max Score
OpenAI·breadth first search
Grid Infection Spread Until Stable
OpenAI·breadth first search
Grid Infection with Immune Cells Until Stable
TikTok
Maximum Candies with At Most Two Types in a Line
Crusoe·array
Interval Usage with Non-Overlapping Overrides
DoorDash
Maximize Total Profit by Assigning Chefs to Dishes
Geico·design
Implement an LRU Cache
TikTok·design
LRU Cache with TTL Expiration
Uber
Maximal Square Area
Ericsson
Pascal's Triangle
Ericsson·heap priority queue
Top K Frequent Elements
Two Sigma
Piecewise Linear Interpolation and Extrapolation
Anthropic·design
In-Memory Database with Backup and Restore
Capital One
Count Numbers with Even Number of Digits
Capital One·queue
Queue Check-in Simulation with Capacity Limit
Capital One
Dynamic Wall Building and Range Query
Capital One·array
Cyclic Shift to Strictly Descending Array
Circle·queue
Task Management System
Circle
User Quota Scheduling with Expiring Assignments
Point 72·sliding window
Lexicographically Smallest String After Substring Operation
Stripe
Email Log Processing, Grouping, and Sorting
Uber
First Unique IP Hitting the Server
Roblox·design
Implement a Rate Limiter
Roblox·queue
Rate Limit by Multiple Request Fields
OpenAI
ChatApp with Bots
OpenAI
IP Address to CIDR Blocks
Visa
Minimum Cost to Select People for Skill Quotas

December 2024 (52)

Google
Number of Distinct Islands
Snowflake
Remove Stones to Minimize the Total
Snowflake
Find the Max Len of A Good Subsequence I
Microsoft
Sum with Tiles
Microsoft
Maximize Sum of Two Non Overlapping Fragments
Amazon·sliding window
Similar Text Substring Count
IBM·greedy
Min Cost
IBM
Min Difference
IBM·greedy
Max Profit
Capital One
Sum Digits Until One
Amazon
Max Transfer Rate
Amazon
Get Final Location
Amazon
Get Number of Redundancy Free
Amazon
Get Stable Periods Count
Amazon
Min Days to Deliver Parcels
Amazon·greedy
Calculate Max Profit
Google
Max Break Time
Microsoft·dynamic programming
Three Partition Array
Amazon
Min Operations
Amazon
Get Max Stability
Amazon
Get Max Stability
Google·graph
Reach the End In Time
Google·two pointers
Set Total Palindrome Tranformation Cost
Trend Micro
Change Segment Colors
Google·greedy
Find Optimal Input
Google
Calculate Min Satellites Required
Amazon·dynamic programming
Find Length of Longest Self-Sufficient Proper Substring
Microsoft·math
Max Sum With Same First And Last Digit
Uber
Regional Maximum Finder
Uber·hash table
Command Frequency Counter
Uber·string
Valid String Check
GitHub
Bridge Car Weight
Amazon·dynamic programming
Find the longest possible regular expression
Amazon
Get Min Value
Amazon
Get Max Skill Sum
Amazon
Find Number
Amazon
Get Min Removal
JP Morgan
Find Total Cost
Microsoft
Max Num Of Prduced Car
Amazon·string
Find Lexicographically Smallest String
Amazon
Find Password Strength
Amazon
Perform Queries
Amazon
Calculate Max Quality Score
Wells Fargo
Get Min Length
Quora
Count Powers Of K
Quora·sorting
Determine the Elimination Order
Amazon
Data Dependence Sum
Amazon
Max Efficiency Score
Amazon
Min Operations
Amazon·greedy
Min Cost
TikTok·array
Interesting Watch Sequence
IBM·string
Get Final String

September 2024 (148)

ZipRecruiter
Fishing
Deutsche Bank·string
Generate Lexicographically Smallest String
Rubrik
Enhance Luminescence
Rubrik
Maximize Stellar Gradient
Rubrik
Salvage Humankind
Rubrik
Mike and Gems
Squarepoint
Empty Shelf
Squarepoint
Suggested Products
Amazon
Find Days S2 Subsequence of S1
Meta
Min Obstacles to Allow Figure Fall
Meta
Find How Many Subarrays Match the Pattern
Meta
Count Three Sisters
IBM
Count Similar Pairs
IBM
Max Subject Number
IBM
Maximum Efficiency
Hudson River Trading
Future Stock Price
Cisco
Pilot Drops Food Packet
OpenAI
Maixmize the Hits
Wayfair
Num of Divisible Substrings
Wayfair·depth first search
DFS Substring of A String
Amazon
Find Subarray with Minimum Distinct Integers
IBM
Min Operations to Make All Elements Equal
IBM
Get Minimum Operation Count
Toshiba
Minimize Multiples of Three
Amazon
Maximum Quality Sum
Amazon
Minimize Warehouse Transfer Cost
Amazon
Find Sum of Beauties
Amazon·dynamic programming
Longest Perfect Anagrams
Amazon
Find Maximum Calories
Palantir·graph
Minimize Path Value
Palantir
Minimal Operations
Salesforce
Find Minimum Idleness
Salesforce
Get Maximum Sum of Strengths
BNP
Piles of Boxes
BNP
Romanizer
Agoda
Maximize Sum of Processed Times
Amazon
Get Max Sum
Akuna·queue
Update Release Scheduler
Akuna·design
Delivery Management System
Akuna·array
Array Challenge
IBM
Equalize Team Size
IBM
Max Index
Roblox
Valid Pairs
Roblox·array
Schedule Meeting
JP Morgan
Slowest Keys
JP Morgan
Get Merged Intervals
DataBricks·breadth first search
Write L Matrix
DataBricks·dynamic programming
Longest Common Prefix of Number Pairs
DataBricks
Diff Between Sums of Positions
DataBricks
Subarray Counting
Arista Networks·breadth first search
Generate Matrix B
Google
Min Moves
Google
Largest Number Possible
Akuna·sorting
Itens Sort
IBM
Min Operations Required
Microsoft·bit manipulation
XOR Coloring
Microsoft
Count Good Arrays
Microsoft
Great Subsequences
DE Shaw
Count Incremovable Subarrays
Salesforce
Closest Subsequence Sum
TikTok
TikTok Server Optimization
TikTok
Tiktok Viral Challenge
TikTok
Optimize TikTok Reels Viewing
Google
Transformation Steps
Google
Find Largest Number
TikTok
Get Min Total Cost
Goldman Sachs
Get Min Moves
IBM
Rover Move
Hudson River Trading
Count Fancy Numbers
Cisco·math
Find Out Prime or Composite
Cisco·array
Compact List
Cisco
Convert Password
Salesforce
Min Difference
Salesforce·graph
Get Node to Remove
Salesforce
Min Dev Time
Codeium·array
Eric's Sequence
Amazon
Maximum Possible Racers
Amazon
Calculate Total Distrance Travelled
Stripe·design
For All Intents And Purposes Part 1 - Initilizing the System
Stripe
For All Intents And Purposes Part 2 - Change Is Good!
Stripe
For All Intents And Purposes Part 3 - Accepting Failure
Stripe
For All Intents And Purposes Part 3 - Timing Matters
TikTok
Viral Content Balancer
TikTok
Distribute Credits
Oracle
Create Largest Permutation
Akuna
Get Probability
ZipRecruiter
Lamp and Control Points
ZipRecruiter
Coder Writing
IBM
Process Logs
IBM
Is Convertible Data
Microsoft·graph
Check Path Presence
IMC·breadth first search
Max Sub Square Matrix Sum Less Than K
Cisco
Add Numbers
Cisco·string
Expand Given String
Cisco
Create New Version
Salesforce
Find All Pairs of Integers
Salesforce·dynamic programming
Longest Substring
Salesforce
Get Min Time
Salesforce
Schedule Batch Difference
Linkedin
First Occurence
Zolostays·prefix sum
Range Sum
Zolostays
Trapping Rain Water
BNP
Largest Good
Rubrik
Key Sum Management
Rubrik
Unaligned Dedupe
Rubrik
Bitonic Partitioning
Rubrik·array
Chain Merge
Rubrik
The Oracle
Rubrik
Redistribute Megasseds
Rubrik
Anti Aging Serum
Rubrik
Save the Universe
FactSet
Last Stone Weight
FactSet
Largest Square of Ones
FactSet
Phone Album
Accenture
Smallest Number Greater Thank K
Mathwork
Has Vowels
Mathwork
Get Min Operations
Blackrock
Calculate Distance
Blackrock
Efficient Matching
Bloomberg·sliding window
Consecutive
Bloomberg
Count Numbers
Bloomberg·dynamic programming
Find Longest Chain
Bloomberg
Shuffle All the Decks
Google
Optimize Log Files
IBM
Maximize Resource Allocation
IBM
Find Max Even Sum
JP Morgan·string
Get Final String
JP Morgan
Min Swaps
JP Morgan
Get Max Deletions
JP Morgan
Maximum Amount
JP Morgan
Count Numbers
JP Morgan
Print Without Repeating
JP Morgan·string
Get Unique Character
JP Morgan
Get Min Machines
JP Morgan·greedy
Get Min Cost
Cisco·array
Find Largest Sum of Continuous Sequence
Cisco
Find Elements Largest in Row Smallest in Column
Cisco·string
Find Palinedrome Sub String
Cisco
Find Machine Count
Uber
Count Segments After House Removals
Amazon
Distributed Packages
Amazon
Get Max Information Gain
Amazon
Find Capable Winners
TikTok·sorting
Sort Social Media Feeds
Microsoft
Maximum Number of Moves with Same Result
Cisco·greedy
Find Min Cost To Shift Machines
Cisco
Get Min Servers
Deutsche Bank
Give Min Sum

August 2024 (129)

Amazon
Get Min Size
TikTok
Secondary Influencer
TikTok
Maximize Efficiency Product
JP Morgan
Get Largest Number
Microsoft
Min Num Tiles
Microsoft
Shortest Possible Length
Hudson River Trading
Increasing Paths 2
Hudson River Trading
Increasing Paths 1
Cisco
Find Mean and Mode
Cisco
Calculate Mean and Mode
Cisco·breadth first search
Find Words in Grid
Cisco
Find Last Call
Salesforce
Get Perfect Pairs Count
Salesforce
Minimal Operations
Nutanix·greedy
Min Cost To Collect All Points
Uber
Count Elements
Uber
Build Blocks and Obstacles
Uber·breadth first search
Matrix Transformation
Uber
Match Pattern
Uber·string
Character Health
Amazon
Calculate Beauty Values
TikTok
Substrings Without Vowels
TikTok
Build URLs
IBM
Get Min Cores
IBM·string
Get Smallest String
Microsoft·breadth first search
Path In Grid
Microsoft
Minimize Difference
Microsoft·bit manipulation
Product of xor of All Good Pairs
DE Shaw
Subarray Removal
Cisco
Find Maiximum Number Drop Points Connected
Cisco·dynamic programming
Longest Palindromic Subarray
Cisco
Find Largest Sum Contiguous Subarray
Commvault
Count Good Strings
Commvault
Num of Good Pairs
Zolando·dynamic programming
Longest String
Zolando·string
String Manipulation
Sofi
Get Maximum Jobs
Amazon
Choose Warehouse Location
TikTok
Min Days to Target Engagement
TikTok
Calculate Content Strength
Akuna
Movie Ratings
Akuna
Get Max Cost
Akuna·string
Get String
Roblox
Make Tower
Roblox
Shift Ops
Roblox·dynamic programming
Find Longest Diagonal Segment
Amazon
Minimize Storage Required
TikTok
Shared Categories
TikTok
Find Min Transitions
TikTok·math
Find Pair with Max GCD
Mathwork
Make Arrays Equal
Rubrik·string
Friendship String
Rubrik
Doing Smart Work
Rubrik
Battle with Upper Moon 6
Rubrik
Maximize Happiness
Cvent
Maximize Score
Trend Micro·simulation
Counting Game
Trend Micro
Find Sequences
Snowflake
Closest Squared Distance
Google
Min Num Moves
Google
Biggest Number of Digits
TikTok·greedy
Get Optimal Content Storage
IBM
Get Maximum Occurances
IBM
Get Min Difference
IBM
Max Traffic Time
IBM
Get Maximum Amount
Roblox
Find Largest Num Of Pairs
JP Morgan
Choose Fleets
JP Morgan
Count Signals
Salesforce
Least Hours
DataBricks·string
String Requests
DataBricks
Diagonal Weights
DataBricks
Goto Largest Bucket
DataBricks
Count Triples with Diff
DataBricks·array
Array Manipulation
DataBricks
Advanture to Count Moves
DataBricks
Cyclic Pairs
DataBricks
Check Pattern Presence
Capital One·breadth first search
Rotate Matrix Over Diagonals
GE Vernova
Find Min Special Value
Amazon
Minimize Maximum Parcels
Google
Happy Neighbor
Amazon
Get Maximum Sum
TikTok
Exchange Cups
TikTok
Eating Candies
TikTok
Find Good Subarray
TikTok
Card Packets
DataBricks
Count Pairs
Google
Movie Bits to Right
Eat Club·array
Sequence Beauty
Eat Club
Grandmaster Choice
Akuna
Movie Marathon
Akuna
Min Operations
JP Morgan
Count Teams
Uber·graph
Good Ways to Reach a Sum
Uber·array
Count Good Array
Uber·sorting
Min Right Shifts to Sort An Array
Uber
Min Obstacle to Remove
Optiver
Customer Checkout Duration
Amazon
Get Num Teams
Akuna
Maximize Segregation Cost
BNY Mellon
Count Subsequences
BNY Mellon
Dig Sum
Amazon
Process Queries On Cart
Amazon
Assign Tasks
Amazon
Get Server ID
Amazon
Get Active Requests Count
Amazon
Get Operations
Google
Find Max Heart Rate Difference
Google
Assign Locker
Google
Find Palindromes
Google
Binary Palindromic
Google
Max Num of Moves with Same Result Sum
Google·tree
Divide Tree Nodes
Google
Find Consistent Logs
Google
Social Meida Friend Recommendation
Akuna
Maximum Amount of Profit
Akuna
Max Meetings
Mathwork
Good Strings
Mathwork
Cars Left
Microsoft·dynamic programming
Longest Path
Microsoft·sorting
Min Order
Salesforce
Count Numbers with Unique Digits
Uber
Calculate Visited Countries
Blackrock
Is Happy Number
Epam
Rob House
Onix·string
Get String to Remove
Hyper Verge·string
Get String to Remove
Sig
Count Triples

March 2024 (97)

Amazon
Max Aggregate Temp Change
Google
Min Flips
Google
Mnimize Total Time
IBM·greedy
Latest K Requests
Microsoft
Handmade Items
Microsoft
Cover Hotels
Infosys
Unique Elements After Modification
Google
Nearest Value Replacement
Amazon·array
Merge Interval
Google
Min Operations
Google·string
Can Fit Word
TikTok
Server Investment
TikTok·design
Auth System
Google·string
Is Balanced String
Cisco·sorting
Check Alphabetical Order
Cisco
Find Number
Cisco·dynamic programming
Longest Palindrome
Paypal
Min Operations
Paypal
User Logins
Salesforce
Plan Cut
TikTok·sliding window
Maximize Consecutive Dance Moves
Uber
Output All Possible Strings
Uber
Generate Arrays
Uber
Top 2 Teams
Salesfoece·dynamic programming
Find Longest Subsequence Common To X As Substring In Y
Salesfoece·string
Find Word sNot In Subsequence
Google
Find Max Length of Subsequence
Salesfoece
Tool Changer
Trade Desk
Narrative Words
Trade Desk
Last to Be Checked
Trade Desk
Buddies Greater Than Target
Trade Desk
Earn The Most
Trade Desk
Light Sources
Trade Desk
Flights
Trade Desk·array
Friend List
Goldman Sachs
Find Niceness
IBM
Elementary School
Doordash
Find Different Value
IXL Learning
Card Packets
IXL Learning
Count Max
IXL Learning
Get Min Difference
IXL Learning
Prison
Amazon
Count Faults (Faulty Binding 101 😁)
Amazon
Find Max Num
Wolverine Trading
Count Operations
Wolverine Trading
Encode
Wolverine Trading
Max Shared
Amazon
Minimize Sum of Absolute Differences
Microsoft
Prepare Notification
Microsoft
Side Largest Square
Microsoft
Str with Longgest Len
Doordash
Adjust Prices
Two Sigma
Num to Be Divided by N
Two Sigma
Replacing Val
Geneva Trading
Min Num of Permutation Operations
Service Now·array
Max Sum of Balanced Sequence
Service Now
Find Max Min Val Using K Elements
General Motors
Prepare Notification
General Motors
Smallest But Greater
Microsoft
Cleaning Bot (Microsoft India)
ThoughtSpot
Get Min Time
Morgan Stanley
Break The Bricks
Morgan Stanley
Get Subsequence Count
Amazon
Match Strings
Doordash
Sizes of Friend Groups
TikTok
Minimum Buckets
TikTok
URL Hashing
TikTok
Three Knights
IBM
Arr Subsets
IBM
Table of Contents
Amazon
Num of Possible Unique Strings
Amazon
Find Encrypted Password
Amazon
Maximum Number of Balanced Shipments
Amazon·two pointers
Lexicographically Smallest Palindrome Possible
IBM
Get Potential of Winners
DE Shaw
Cop
Zscaler
Count Signals
Zscaler
Count Sentences
Atlassian
Flower Bouquets
Atlassian
Better Compression
Atlassian
Romanizer
Braze
Find Lowest Price
Google·sliding window
Largest Lexicographical Substring
Google
Maximize Power Values Sum
Amazon·hash table
Ways to Group Parcels
Amazon
Find First Unique
Amazon
Get Distinct Pairs
IBM
Find Max Distinct Items
Amazon·string
Maxmimum Times Word Removed
Amazon·two pointers
Reverse Binary String
Amazon
Return Records
Snowflake
Max Freq Substr
Weride
Checking Your Route
DE Shaw·array
Min Operations to Make Array Equal
Barclays·math
Find Maximum Possible GCD
IMC·graph
Find Best Path
IMC·simulation
Asteroid Game

February 2024 (121)

Intuit
Smart Gardener (Intuit India)
Microsoft·array
Find Array Uniqueness Median
Microsoft
Count Similar Substrings
Infosys
Obtain Max Score Using Min Swaps
Observer.AI
Choose Best Flask
Amazon
Find Min Operations
Meta
Combine Vectors(MLE)
TikTok
Find min Inversions
TikTok
Max Len
TikTok
Find Min Sum
Citadel
Min Equal Sum
Goldman Sachs
Min Start Value
IBM
Total Execution Time
Walmart·dynamic programming
Longest Good Sequence
Flexport
Get Expression Sums
Flexport
Max Energy
Flexport
Get Min Time
Flexport·graph
Get Node to Remove
Hudson River Trading
Harvest Crops
Snowflake·array
Meeting Time
Snowflake
Max Beautiful Substrings
Intuit·dynamic programming
Longest Cipher (Intuit India)
Intuit·breadth first search
Virus Spread (Intuit India)
Intuit
Spreading Fire (Intuit India)
Intuit
Jumping Kaday (Intuit India)
Intuit
Max Reward (Intuit India)
Weride
Long Break
Weride
Meetup Schedule
Samsung
Find Hidden Benchmark Value
Walmart
Min Possible Value
Infosys
Extract Cards
DE Shaw
Max Beauty
Intuit·string
Rearranging String
Intuit
Letter Candles
Intuit
Get Min Difference
Microsoft
Maximize Difference
Oracle
Min Diff
Oracle
Balancing Parentheses
Oracle
Last Letters
Oracle
Reduction Cost
Oracle·array
Merge Arrays
Oracle
Is Power
ZipRecruiter
Count Triple
ZipRecruiter·graph
Cycle Shift
Mathwork
Load Balancing
Roblox
Largest Value of Usage in Minutes
JP Morgan
Min Operations
JP Morgan
How Many Flips?
Palantir
Get Phone Numbers
Palantir
Get Largest Number
Pure Storage
Find Doubles
Amazon
Get Max Racers
Oracle
Add Numbers
IBM
Get Min Time
Amazon
Get Min Num Moves
Amazon
Count Distinct Passwords
Citadel
Max the Lottery ID
Meta·breadth first search
Search Mysterious Grid
Meta
Enumerating Narrative Sections
Snowflake
Efficient Deployments
Amazon
Fortune Telling
Amazon
Max User Traffic
Amazon
Find Min Trips
Meta
Closest Landmark
Google
Min Amplitude
Google·string
Ways to Split a String
Google
Maximum Time
Google
Min Ab Difference of Server Loads
Google
Most Booked Hotel Room
Google
Min Number of Chairs
Google
Min Days to Bloom
Google·breadth first search
Fill Matrix
Google·string
Time to Type a String
Google
Decreasing Subsequences
Google
Max Distance
Google
Stores and Houses
Google·graph
Find Min Distance to Furthest Node (Google Tokyo)
Google
Pizza Shop (Google Tokyo)
Google·sorting
Relative Sort (Google Singapore)
Amazon·sorting
Sort Product Codes
ZipRecruiter·math
Count Distinct Swappable Digit Pairs
ZipRecruiter
Time Travel
ZipRecruiter
Exclusive Event Entry
ZipRecruiter
Distribute Integers Between Arrays
Mathwork
Count Valid Passwords
Mathwork
Get Maximum Reward Points
Snowflake
Radio waves
Amazon
Find Recurring Name
Amazon·queue
Find Requests In Queue
Meta
Buses in a Bustling Town
TikTok
Maximum Value
TikTok
Count Purchases
TikTok
Calculate Validity
Oracle
Get Discounted Price
Oracle·sorting
Cardinality Sort
Snowflake
Get Num Ways
Snowflake
Find Maximum Number Live Threads
IBM
Validate Requests
IBM
Find Missing Integers
IBM·array
Merge Arrays
Amazon
Find Largest Set of Onion Bags
Amazon
Minimum Total Errors
Adobe
Get Minimum Operations
Twilio
Find Maximum Greatness
Twilio
Count Groups
Snowflake·array
Array Reduction Algorithm
Snowflake
Count Ways to Color Houses
Snowflake
Count Min Characters
IBM
Find Y Values
IBM
Circles
IBM
Get Min Moves
TikTok
Segment Queries
TikTok
Minimum Cycles
TikTok
Stars and Bars
TikTok·dynamic programming
Longest OR
TikTok
Get Server Index
Akuna·greedy
Min Cost (Akuna Shang Hai)
Akuna
Minimum Chunks Required (Akuna Shang Hai)
Akuna
Diffierence Calculator (Akuna Shang Hai)
Snowflake
Get Max Upgraded Servers
Snowflake
Efficient Cost

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⏵ The hedge for the OA you didn't see coming

1,053 OAs above. Yours might be the one not on the list.

StealthCoder runs invisibly during the live screen share. It reads the problem on screen and surfaces a working solution in under 2 seconds. Works on HackerRank, CodeSignal, CoderPad, and Karat.

OAs reported by candidates from real Online Assessments. Sourced from a publicly-available candidate-aggregated repository. Not affiliated with any company listed.

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