Interview Intel · Live OA feed
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
Find your company below. Read the pattern. Then run StealthCoder invisibly during the live screen share. The proctor sees the IDE. They don't see what's behind it.
Get StealthCoderReported recently
Latest leaks
Whatnot·May 2026
User Journey Paths
Airbnb·May 2026
Print Sentences as Table
Snowflake·May 2026
Minimum Index Distance Between Person and Cake
Snowflake·May 2026
Minimum Clicks Between Wiki Pages
Upstart·May 2026
Bounding Box from Coordinates
Upstart·May 2026
Filter by Threshold and Return Name with Max Score
OpenAI·May 2026
Grid Infection Spread Until Stable
OpenAI·May 2026
Grid Infection with Immune Cells Until Stable
Showing all
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
April 2026 (33)
Applied Intuition
KV Store with Nested Transactions
Citadel·graph
Minimum Path Sum to Target in Binary Tree
Datadog
Log Ingestion and Query
Google·graph
Shortest Path with Mandatory Waypoint
Google
Minimum Cars for Rental Requests
LinkedIn
Count Completed Trips
Netflix·design
Timed Cache with Sidecar Cleanup
Netflix
Command Undo Data Structure
Oscar Health
Members Lacking Provider Network Access
Stripe
Generate Available Time Slots
Tesla
KV Store with Rollback
Uber
First Unique Log Entry
Uber·heap priority queue
Top-K Using a Priority Queue
Oura
Assign Server Numbers by Type
Verkada
Find Valid IP Addresses
Gemini
Minimum Fence Painting Operations
Visa
Maximize Capped Contribution Sum
Visa·dynamic programming
Longest Selectable Non-Decreasing Subarray
Databricks·hash table
Find First Anagram Index
IBM
Count Power Products in Range
IBM
Count Descending Subarrays
Uber
Balanced Prefix Sets in a Permutation
Uber·graph
Minimum Edge Reversals to Root a Tree
Amazon·design
Create Array Generator Service
Point 72
Initial Public Offering
Amazon
Get Min Errors
Amazon
Make Value Groups Contiguous
Superhuman
Lost Messages
Superhuman·greedy
Optimal Transfer
Superhuman·math
Math Homework
Amazon
Maximize Protected City Population
Amazon
Minimum Cost to Convert Products to Variant A
Amazon
Minimum Preparation Time for Two Handlers
March 2026 (8)
February 2026 (2)
January 2026 (4)
November 2025 (5)
September 2025 (3)
June 2025 (23)
Fortinet
Madam C.J. Walker's Business Plan
Fortinet
K-Means Clustering
Fortinet
Signal Pings
Box
Retention Policy Collision
Box
Counterfeit Currency
Box
Box Fro~yo
Amazon
Predict Answer
Amazon
Minimum Total Packaging Effort
Amazon
Get Min Subsegments
Amazon
Find Security Level
Amazon
Minimize Variation
JP Morgan
Calculate Net Profit
JP Morgan
Balanced Sum
JP Morgan
Get Min Operations
JP Morgan·binary search
Get Search Result
JP Morgan·sliding window
One Substring Count
JP Morgan
Find Total Weight
PayPay·sliding window
Sum Consecutive Identical Digits
PayPay
Board Coloring and Query Processing
PayPay·array
Palindromic Array Transformation
PayPay
Calculate Change
PayPay·math
Find Maximum Two-Digit Fragment
Amazon·hash table
Find Hash
May 2025 (29)
Amazon
Find Minimum Days
Amazon
Split Prefix Suffix
Amazon
Find Minimum Machine Sizes
Amazon
Server Selections
Amazon
Count Special Substrings
Amazon
Get Maximum Count
Couldflare
Determine Min Partitions Required
Amazon
Determine the Best Skipping Strategy
Amazon
Find Number of Compatible Substrings
Amazon·array
Minimum Connected Delivery Zones After Adding One Interval
Amazon
Find Maximum Score
Amazon·array
Lexicographically Maximal Resulting Array
IBM
Get Min Increment
IBM
Get Min Operations
Microsoft
Valid Mixed Case Letters
Agoda
Unique Digits in Range
Agoda
Two-Core Process Assignment
Agoda
Team Formation
Unknown Company·math
Math Challenge
Unknown Company
Get Minimum Moves
Airtable
Approximate Percentiles
Airtable
Get Most Hydrated Team
Airtable
Table Editing
Dell
Optimizing Resource Allocation
Dell
Count Binary Substrings
Juspay·breadth first search
Converging Maze: Largest Sum Cycle
Juspay·breadth first search
Converging Maze: Nearest meeting cell
Meesho
Distinct Moves
Epify
Request Redirection
April 2025 (15)
Amazon
Min Dock Bays
Amazon
Find Idle Skill Query
Amazon·array
Compute Beauty of Array Products
Amazon
Min Num Unique Distribution Hubs
Amazon
Use Minimum Tokens
Amazon·string
Next Perfect String
Amazon
Find Max Num Of Servers
DTCC
Find Reciprocal
Amazon·hash table
Remove Characters in Frequency Order
Microsoft
Min Cars to Remove
Point 72
Get Triplet Count
Amazon
Count Failed Executions
Amazon·greedy
Optimal Utilization
Amazon
Ways to Select Fleet
Amazon
Buy Servers
March 2025 (42)
Amazon
Min Retailers
Amazon
Cinema Shows
Amazon
Find Replacement
ZipRecruiter
Fantasy Card Duel
IBM
Bitonic Subarray
Amazon·string
Good String
ZipRecruiter
Triplets With Unique Chars
HSBC
Flower Bouquets
HSBC
Max House Area
YahoO·sliding window
Count Substring
YahoO·string
Get String
Amazon
Max Sum of Non-overlapping Intervals
Amazon
Find Min Max Difference
Amazon
Get Minimal Cost
Microsoft
Freeing Shelves
Microsoft·simulation
Balance the Game Board
Amazon·array
Make Array Distinct
Amazon
Find Least Possible Vulnerability
Fortinet
Beautiful Strings
Tesla
Shoe Factory
Tesla
Encrypt
Amazon
Number Of Well Performing Groups
Amazon
Ensure Non Zero Load Sum
TikTok
Min Adjustment
TikTok
Shopping Cost
Rippling
Maximum Time Required To Transfer Data
Instacart
Bird Collects Sticks
Instacart
Pop Bubbles
Instacart
Count Color Pairs
Amazon
Get Max Increments
Amazon
Password Strength
Ramp
Accept or Decline Queries
Publicis Sapients
Get Min Time
Amazon
Trader Joe Trades
Amazon·greedy
Optimal Level
Amazon
Min Operation
Unknown Company
Build Monuments
Amazon
All About Rewards
Amazon
Compute Least Truck Count
Amazon
Inventory Processes Survival Possibility
Amazon
All About Medians
Amazon
Get Largest Number
February 2025 (9)
January 2025 (13)
Amazon
Count Secured Strings
Amazon
Equal Products
Amazon
Min Operations to Make the Integer Zero
Amazon·design
Find Sum of System Volnerability
Amazon
Maximize Product of Sizes of Subtrees
Amazon
Min Energy Cost
Amazon
Calculate Max Salary
Amazon·greedy
Optimal Interval Difference
Amazon
Find Max Value
Amazon
Get Max Events
Amazon
Discount Events
TikTok
TikTok Spam Filter
TikTok
Count Twin Pairs
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
November 2024 (51)
Amazon
Sum of All Days Numbers on Which the Data of the Xth Will Be Dependent
Amazon
Optimize Identifiers
Stripe
Card Range Obfuscation Part 4
Stripe
Card Range Obfuscation Part 3
Stripe
Card Range Obfuscation Part 2
Stripe
Card Range Obfuscation Part 1
Amazon
Min Insertions
Amazon
Find Obfuscate Message
TikTok
Create Maximum Collaborations
TikTok
Maximize Processing Power
IBM
Get Query Answers
IBM
Card Packs
DE Shaw
Choose Max Ratings
micro1
Process Messages
Amazon
Min Chars to Append
Amazon
Buy Volumes
Cisco
Find Max Difference
Amazon
Reduce Memory Usage
Google·array
Get Meeting Intervals
Salesforce
Minimize Total Input Cost
Amazon
Count Dominant Substrings
Amazon
Get Min Change
Amazon
Calculate Truck Distance
Rubrik
Get Min Operations
Rubrik
Get Triplet Count
Rubrik
Find Pod Count
Amazon
Find Ideal Days
Amazon
Get Max Throughput
TikTok
Calculate Max Processing Throughput
TikTok
Get Total Impact
TikTok
Max Profits
Paypal
Find Min Price
Amazon
Get Min Moves
Amazon
Minimize Effort
Amazon
Find Dominance
Amazon
Get Num Perfect Packing
Amazon
Get Max Discount Pairs
Google
Get Components in Forest
Google·hash table
Find Max Frequency
TikTok
Rearrange Students
Microsoft·two pointers
Reverse An Integer
Amazon
Rooks Left
Google·dynamic programming
Longest Non-Decreasing Subarray
Google
Find Maximum Length Of Non-Decreasing Subarray
Amazon
Optimize Identifiers
Amazon
Find Max Total Amount
Google·string
Transform String
Google
Build Maximum Integer
Amazon·array
Is Special Sequence
Google
Maximize Points
Google
Find Contiguous Subarray With Largest Min Plux Max
October 2024 (52)
Amazon
Find Min Variance
Amazon
Count Inaccurate Results
Amazon
Find Min Time Required
Amazon
Cleanup Dataset
Google
Min Absolute Sum
Google·array
Num of Ways to Split Array
IBM
Count Teams
Doordash
Team Formation
Doordash
Get Final Price
Salesforce
Max Sum of Processed Time
Amazon
Find Maximum Packages
Amazon
Calculate Warehouse Efficiency
Amazon
Make All Elements Distinct
Amazon
Maximize Similarity
Amazon
Find Networking Calls
Amazon
Get Smaller Items
Amazon
About Mortgage
Amazon·greedy
Get Min Cost of Purchasing Books
Amazon
Schedule Tasks
Walmart
Candy Bars
Cisco
Water Jug
Paypal
Find Min Price to Spend
TikTok
Count Balanced Clilps
Patreon
Minimize Computation Time
Patreon
Sum of Subarray Regions
Amazon
Planning the Campaign
TikTok
Server Network Optimizations
Amazon
Get Max Programs
Amazon
Find Minimum Time
Amazon
Get Max Charge
Amazon
Min Time to Create Beautiful Canvas
Amazon·string
Rearrange Binary String
Amazon·sorting
Sort Permutation
Wells Fargo
Allocate Wells
Wells Fargo
Find Affected Systems
Wells Fargo
Max Distance
Wells Fargo
Count Operations
Wells Fargo·sliding window
Get Substring
Wells Fargo
Sum of Compressed Num for All Subarrays
Amazon
Get Max Alternating Music
Amazon
Maximize Secondary Tasks Scheduled
Amazon·queue
Task Scheduler
TikTok
Max Engagement
TikTok
Find Max Squad Size
Expedia·sorting
Rank Secondary Popularity
Expedia
Get Min Steps
Oracle
Min Diff
Amazon·string
Special String
Cisco
Identify the Non Twin Person
Cisco·breadth first search
Rotate the Matrix
Expedia
Get Max Efficiency
Expedia
Calculate the Sum
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
July 2024 (28)
Amazon
Get Minimum Boxes
IBM·string
Min Insertion to Balance a Parentheses String
Snowflake
Get Maximum Sum
Uber
Count L Shapes
Uber
Count Elements With At Least One Smaller And One Greater Value
Uber
Min Operations To Make Harmonious
Jane Street·string
Transform String
DE Shaw·array
Make Array Bitonic
Hudson River Trading
Buy and Sell Stock
Moveworks
Number of Balanced Strings
Moveworks·sorting
Min Moves to Sort Array
Moveworks
Find Max Number of Strings
Moveworks·sorting
Min Operations to Sort Array
Amazon
Compute Encoded Product Name
Amazon·queue
Process Queue
Amazon
Get Redundant Substrings
Purestorage
Shopping and Billing
Blackrock
Count Levels
Salesforce·graph
Least Stressful Path
Salesforce·sliding window
Same Substring
Citadel
Get Min Operations
Citadel
Count Stable Segments
Citadel
Find Consistent Logs
Citadel
Get Max Throughput
Citadel
Get Recommended Friends
Goldman Sachs
Alphanumeric Combinations
JP Morgan
Chess Tourment
Amazon·sliding window
Max Consecutive ON Servers
June 2024 (33)
Amazon
Get Total Requests
Snowflake
Minimum Segment
Cisco
Find Critical Nodes
Uber·dynamic programming
Find Length of Longest Common Prefix
Amazon
Maximize Negative Signs
Adobe·dynamic programming
Determine the Edit Distance in a Word Ladder
Flexport
Distinct Moves
Flexport
Maximum Edges
Wework·array
Meeting Room
Wework
Shopping and Billing
IBM
Min Chairs
Microsoft·string
Get Alphabetically Smallest String
Salesforce
Count Substrings
Salesforce
Count Min Operations to Reduce Dimensions
Xperi
Make Numbers Equal
Xperi
Count Integer Sequences
Paypal·array
Modify Array
Amazon
Maximum Stability
Amazon
Is Regex Matching
IBM
Find Arrangement
Microsoft
Skycraper
Microsoft
Min Num Cells
Microsoft
Maximum Cells
Uber·string
Word Pairs
Uber
Bus Time
Amazon
Maximize Subtree Product
Amazon
Bring Servers Down
Snowflake·binary search
Search Strings
Amazon
Optimizing Box Weights
Amazon·binary search
Find K Level Permutation
Google
Max Subarray Filled with Zeros
Google
Find Last Characters
Salesforce
Winning Square
May 2024 (19)
Google·binary search
Search Suggestions System
Google·string
Minimum Flips to Alternate Binary String (With K Flip Window)
Google
Generate Pattern Matching Strings
Goldman Sachs
Find the Damaged Toy
Goldman Sachs
Encode or Decode Message
Cisco·graph
Flight Path Package Drop
Amazon
Process Execution
Amazon
Get Experience
Microsoft
Find Min Num Moves
Flexport
Count Good Subsequence
Flexport
Throw the Ball
Uber·bit manipulation
Maximize XOR for Each Query
DE Shaw·greedy
Get Min Cost
DE Shaw
Find Num of Interesting Pairs
Meta
All About Cave
Amazon
Ordered Confirguration
Microsoft
Assign Value
Microsoft
Construct Max Balanced Circle
Amazon
Find Max Pairs
April 2024 (42)
IBM·greedy
Get Optimal String Length
DE Shaw·prefix sum
Maximum Size Subarray Sum
Canva·string
Character Reprogramming
Canva·sorting
Order Check
Canva
Counting Binary Substrings
Nutanix·array
Minimum Operations to Convert Array
TikTok
Maximum Shown Segments
Snowflake
Airport Limousine
DE Shaw
Calculate Region
DE Shaw
Perfect Break
JP Morgan·greedy
Find Min Cost
Microsoft
Min Str without Reapting Chars
Microsoft·simulation
Frog Game
Wayfair
Smash Bricks
Wayfair·string
Validate Magical Binary String
Nutanix
No Adjacent Characters
Amazon
Find Median Of Subarray Uniqueness
Amazon
Max Negation
Amazon
Get Min Time
Amazon·binary search
Kth Smallest in Subarray
Amazon
Get Max Pairs
Amazon
Count Pairs
TikTok
Max Engagement
Mathwork
Max Operations
Mathwork
Max Even Sum Subsequence
Mathwork
Find Min Possible Size
JP Morgan
Max Information
JP Morgan
Num of Pairs
Amazon
Channel Max Quality
Amazon
Num of Idle Robots 🐳
Google·sorting
Split and Sort
Barclays
Mim Steps Required
Confluent
Get Best Price
Amazon
Max Lucky Numbers
Amazon
Max Total Area
Microsoft
Max Sum After Merges
Infosys
Find Num of Good Subsequences
Amazon·binary search
Find Kth Minimum Vulnerability
Mathwork
Max Beauty
Mathwork
Investable Periods
Alarm.com
Arrange Coins
Alarm.com
Days Since Last Login
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
January 2024 (38)
Amazon·dynamic programming
Get Longest Match
Amazon
Dropped Requests
Amazon
Remove Anagrams
Amazon
Find Unique Values
Amazon
Execute Processes
Amazon
Number of Suitable Locations
Amazon·hash table
Group Students
Amazon
Maximum Final
Amazon
Get Pairs Count
Amazon
Rice Bags
Snowflake
Smallest Set Covering Intervals
Snowflake·sorting
Maximum Order Volume
Snowflake
Unequal Elements
Snowflake·string
String Formation
Snowflake
Job Execution
Snowflake
Perfect Pairs
Snowflake
Cross the Threshold
Snowflake·greedy
Get Min Cost
Snowflake·string
String Patterns
Amazon
Get Discount Pairs
Amazon·greedy
Get Min Cost Data
Goldman Sachs
Compute Parameter Value
Goldman Sachs
Max Min
Goldman Sachs
Chair Requirements
Goldman Sachs
Autocorrect Prototype
Goldman Sachs
Do They Belong?
Goldman Sachs
Preprocess Dates
Goldman Sachs
Compare Strings
Goldman Sachs·array
Plus Mult Array
Goldman Sachs
Better Compression
Goldman Sachs
Count Palindromes
Goldman Sachs
Encircular
Goldman Sachs
Project Estimates
Goldman Sachs
Cutting Metal Surplux
Goldman Sachs·dynamic programming
Longest Subarray
Amazon
Count Maximum Profitable Groups
Amazon
Get Trucks for Items
Cisco
Maximum Chocolates from Jars
December 2023 (9)
August 2023 (8)
Browse by company
Amazon
263 OAs
Google
66 OAs
TikTok
59 OAs
IBM
52 OAs
Microsoft
43 OAs
Uber
31 OAs
Snowflake
30 OAs
JP Morgan
30 OAs
Cisco
30 OAs
Goldman Sachs
26 OAs
Salesforce
22 OAs
Rubrik
19 OAs
Akuna
16 OAs
Mathwork
15 OAs
Databricks
14 OAs
DE Shaw
12 OAs
ZipRecruiter
11 OAs
Oracle
11 OAs
Stripe
10 OAs
Roblox
9 OAs
Meta
9 OAs
Intuit
9 OAs
Citadel
8 OAs
Flexport
8 OAs
Wells Fargo
7 OAs
Trade Desk
7 OAs
DoorDash
6 OAs
Capital One
6 OAs
Hudson River Trading
6 OAs
OpenAI
5 OAs
Browse by pattern
string (40)array (35)dynamic programming (23)greedy (21)sorting (17)breadth first search (16)graph (15)design (12)sliding window (11)hash table (8)math (8)queue (7)binary search (6)simulation (4)two pointers (4)bit manipulation (3)heap priority queue (2)prefix sum (2)union find (1)depth first search (1)
⏵ 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.
OA in the next 72hrs?
Invisible during screen share