Latest OA Problems
Company-specific coding interview practice
Browse recent public FastPrep problem pages for Amazon, Google, Stripe, Meta, CodeSignal-style assessments, and other company online assessment practice.
Automation Pipeline, Part 1: Single Worker - PlaidAutomation Pipeline, Part 2: Stage Workers - PlaidAutomation Pipeline, Part 3: Stage Duration - PlaidBinary Circuit - Akuna CapitalCount Access Code Pairs - TiktokCount Key Changes - TiktokDeterministic K-Means Assignments - LyftFind Median from Data Stream - AmazonHandwritten Sigmoid - AmazonHandwritten Softmax - AmazonKoko Eating Bananas - AmazonLast Round for Each Player - DRWLoyal Customers Across Two Days - AmazonMaximum System Memory Capacity - AmazonMerge k Sorted Lists - OracleMinimize Malware Spread by Removing a Node - Akuna CapitalMinimum Stress Path - WalmartOverheat Prevention Controller - OptiverPackage Delivery System - AmazonParent Process Number - IBMRequest Retry Count - IBMScaled Dot-Product Attention - AmazonSelect Least Resource Tasks - AmazonShortest Compressed Length After Removal - DRWSmallest Number With a Given Digit Sum - AmazonSort an Array with Rotate and Flip - AmazonSort Array by Frequency - Akuna CapitalSort One Displaced Element - GleanTravel Distance on Scooters - TiktokXiangqi Horse Reachability - eBayArray Challenge (QR Intern) - Akuna CapitalBasic Calculator - AmazonCommunications Handler - Akuna CapitalCompare Counts Around Pivot - Capital OneDetect Recurring Transactions with Tunable Tolerances - RampDistance Between Two Tree Nodes - AmazonDrone Delivery Route - AmazonFind Maximum Total Amount (SDE I, Fungible :) - AmazonFirst Bad Version - QualcommFormat a Newspaper Page - Capital OneK Smallest Substring - Akuna CapitalLaser Robot Safe Path - Capital OneLuna and the Colorful Socks - PhonePeMatch Consecutive Word Boundaries - Capital OneMaximum K-Star Sum - Akuna CapitalMaximum Pipeline Throughput - MicrosoftMaximum Strong Team Subarray - MicrosoftMinimum Circular Redistribution Cost - AmazonMinimum Cost to Attend Required Courses - VisaMost Frequent Call Stack Per Thread - RobloxMost Frequent Reduced Digit - AirbnbReconstruct Landmark Journey - Capital OneRectangle Fit Queries - AirbnbRightmost Longest Character Run - Capital OneRobot Final Direction - AirbnbRobot Inventory Tracking - AirbnbTrack Received Byte Ranges - Capital OneTree Diameter - QualcommTwo-Color an Undirected Graph - AppleAlternate String Ends - Capital OneAverage or Zero - WaymoCalendar Event System with Pagination and Intersection - Lead BankDeduplicate Logs: Keep First - GoogleDeduplicate Logs: Keep Latest - GoogleFind a Template Across Binary-Tree Leaves - GoogleMaximum Programmer-Problem Matching - GoogleMinimum Direction Violations - GoogleRound-Robin WDL Order - Capital OneSort Every Matrix Border Layer - Capital OneStock System with Updates and Percentage Change - Lead BankStream Latest Log Versions - GoogleStream Unique Logs in Timestamp Order - Google
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