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.
Bitwise XOR Subsequences - JPMorgan ChaseMaximum System Memory Capacity - AmazonMinimize Effort with EffiBin Kit - AmazonPower Cell Bank - OptiverBanking System, Part 1: Accounts and Transfers - AnthropicBanking System, Part 2: Top Spenders - AnthropicBanking System, Part 3: Scheduled Payments - AnthropicBanking System, Part 4: Merging and Balance History - AnthropicCurrency Conversion Rate - AmazonDoctor Appointment Slot Assignment - DRWLongest Subarray with At Most Two Distinct Values - Moody'sMaximum Even-Sum Neighboring Pairs - DRWMinimize Maximum Group Difference - DRWNumber of Islands II - AmazonReverse a String - IndiaMARTStreaming Ingredient Dishes - HarnessSub-matrix Sums - IMCSub-matrix Sums - IMCAd Rotation Scheduler With Cooldown - GoogleAll OOne Operations - SpotnanaCoin Change - OmnissaCount Connected Point Clusters - GoogleCreate Array Generator Service - AmazonLongest Substring Without Repeating Characters - OmnissaLongest Target Run After Replacements - GoogleMinimum Operations to Make the Integer Zero - AmazonOptimal Card Game Score - SpotnanaRotate Array Right - OmnissaBiggest Connected Component - CodeiumChain of Command - IMCChoose Containers - IMCChoose the Next Hidden-Word Guess - FlexportConvert Stack Samples to Trace Events - AnthropicCourse Schedule - AmazonDrone Delivery Route - AmazonMaximum Sum of Heights - AmazonPlanning Production - VisaSubarray Sum - VisaTrapping Rain Water - RupeekTrapping Rain Water - ZolostaysArray Rank Transform - TCSCount Bowl Subarrays - PhonePeLargest Rectangle in Histogram - ShipsyMemory Allocator - OpenAIMessage Event Aggregation - OpenAIPhone Directory - AppleProduct Except Self With Zeros - AppleReconstruct Itinerary - PhonePeSubset Sum Possible - AppleBalanced Split String with Wildcards - Two SigmaClosest Color - Two SigmaFind All People With Secret - IDFCGood Subsequences - NutanixLongest Palindromic Subsequence - AmazonProduct of Array Except Self - New RelicRich Text Parser Part 1 (Validate Tokens) - FigmaRich Text Parser Part 2 (Parse Nested Groups) - FigmaRich Text Parser Part 3 (Depth Tokens) - FigmaEscape Game - Maximize Score - MicrosoftFind Maximum Total Amount (SDE I, Fungible :) - AmazonFlipping Matrix - Zomato / EternalGroup Anagrams - AmazonMaximum Escape Game Score - MicrosoftSpecial Keyboard - Zomato / EternalJump Game IV - Zomato / EternalMinimum Grid Inconvenience - AmazonProgressive Tax Calculator - Interactive BrokersTask Scheduler with Dependencies - Scale AITop K With a Deterministically Noisy Comparator (MLE) - MercorVersioned Recipe System - Trade DeskCan Every Package Fit in a Box - IMCMinimum Frames for Equal Chunks - The D. E. Shaw Group
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