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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
476
Companies
980
Updated
11.10.2026
476 Questions 980 Companies11.10.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Bridge logo
Bridge
Medium
Software Engineer

Design Minesweeper and Optimize Click Performance

Design a Minesweeper game. At game start, initialize an m×n board by randomly placing k bombs. Implement: ( 1) printBoard(): return a human-readable s...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
29
0
235 people solved
Aug 7, 2025
Easy
Software Engineer Locked

Track Workers, Sessions, Promotions, and Bonus Pay

Implement worker sessions, current metadata, promotions, ordered filtering, and time-clipped compensation with historical rates and non-stacking doubl...

Coding & AlgorithmsSimulation & State MachinesIntervals & Scheduling
1
0
27 people solved
Sep 18, 2026
Chime logo
Chime
Medium
Software Engineer

Simulate toppling board game outcome

Implement a function that, given the board size N (3–9 inclusive) and a list of move strings, returns one of: "in progress", "player 1 is the winner",...

Coding & AlgorithmsSimulation & State Machines
43
0
373 people solved
Jul 27, 2025
Amazon logo
AmazonGoogleMicrosoft
Hard
Software Engineer

Character After Special String Commands

Character After Special String Commands You are given a string s containing lowercase English letters and the commands *, #, and %, together with a ze...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
0
0
8 people solved
Hudson River Trading logo
Hudson River Trading
Easy
Software Engineer Locked

Count players reaching end with moving watchers

This question evaluates skills in discrete-event simulation, stateful time-step modeling, and range coverage by moving agents, as well as algorithmic ...

Coding & AlgorithmsSimulation & State Machines
21
0
161 people solved
Nov 2, 2025
Amazon logo
Amazon
Medium
Software Engineer Locked

Object-Oriented Design: Snake Game

This question evaluates a candidate's ability to translate a familiar game into a clean object-oriented model, covering class decomposition, encapsula...

System DesignLow-Level Design (OOP)Data Structure Design
13
0
213 people solved
Jun 19, 2026
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Meta, Bloomberg

Easy
Software Engineer

Build the Result of a Two-Player Minimum-Removal Game

Build the Result of a Two-Player Minimum-Removal Game You are given a 0-indexed integer array nums of even length. Start with an empty result array ar...

Coding & AlgorithmsSimulation & State MachinesSorting
0
0
10 people solved
Robinhood logo
Robinhood
Medium
Software Engineer Locked

Solve path and inventory problems

This question evaluates algorithmic problem-solving skills around numeric robustness and stateful stream processing, specifically testing reasoning ab...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
22
0
140 people solved
Apr 3, 2026
Google logo
GoogleAmazonMeta
Medium
Software Engineer

Maximum Profit from Normal and Short Transactions

Maximum Profit from Normal and Short Transactions You are given daily stock prices in prices and a positive integer k. Complete at most k transactions...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
10 people solved
Google logo
Google
Medium
Software Engineer

Maximize coins collected by tokens jumping +3

You are given a single-player board game represented by a string board of length N (1 ≤ N ≤ 100). Each character is one of: - '.': empty cell - 'T': a...

Coding & AlgorithmsGreedyArrays & Strings
18
0
179 people solved
Feb 13, 2026
Roblox logo
Roblox
Medium
Software Engineer

Design robot path boundedness with repeats

You are given a 2D grid with a set of blocked cells (obstacles) and a robot starting at (0, 0) facing north. The robot executes a finite instruction s...

Coding & AlgorithmsSimulation & State Machines
38
0
298 people solved
Aug 1, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Simulate pouring water onto a 1D terrain

You are given a 1D terrain represented by an integer array heights, where heights[i] is the height of the column at index i. Part 1 — Render terrain W...

Coding & AlgorithmsSimulation & State Machines
50
0
362 people solved
Oct 28, 2025
Amazon logo
AmazonGoogle
Medium
Software Engineer

Find the First Paint Step Completing a Row or Column

Find the First Paint Step Completing a Row or Column You are given a zero-indexed integer array arr and an m by n integer matrix mat. Each contains ev...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
0
0
9 people solved
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Accenture

Easy
Software Engineer

Evaluate Increment and Decrement Commands

Problem The integer variable X starts at 0. Each entry of operations is ++X, X++, --X or X--. The first two increase X by one; the other two decrease ...

Coding & AlgorithmsSimulation & State Machines
0
0
8 people solved
Google logo
Google
Medium
Software Engineer

Find the Latest Unoccupied Arrival Time That Still Boards a Bus

Problem Buses depart at the distinct times in buses, each taking at most capacity waiting passengers in increasing arrival-time order. Existing distin...

Coding & AlgorithmsTwo Pointers & Sliding WindowSimulation & State Machines
0
0
8 people solved
Google logo
Google
Easy
Data Scientist

Count super-streak segments in an event stream

You are given a time-ordered sequence of events. Each event has: - type, a string or integer event type. - ts, an integer timestamp in milliseconds or...

Coding & AlgorithmsSimulation & State MachinesBatch & Stream Processing
37
0
283 people solved
Jan 2, 2025
Meta logo
MetaWells FargoGoogleBolt

Also asked at Google, Bolt

Easy
Software Engineer

Find the Shortest Length After Removing AB and CD

Find the Shortest Length After Removing AB and CD You are given a string s containing only uppercase English letters. In one operation, remove any occ...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
10 people solved
Runloop logo
Runloop
Medium
Software Engineer

Design a Minesweeper Bot That Decides Which Cell to Flag or Reveal Next

Design a bot that plays Minesweeper. The bot's goal is to win as often as possible, which means clearing the board without ever revealing a mine. The ...

Software Engineering FundamentalsBacktracking & RecursionProbability
0
0
8 people solved
Jul 11, 2026
Google logo
Google
Hard
Software Engineer

Independent Active-Section Trade Queries

Problem You are given a binary string s, where 1 marks an active section and 0 marks an inactive section, and inclusive, zero-based queries [l, r]. Fo...

Coding & AlgorithmsArrays & StringsGreedy
1
0
9 people solved
Amazon logo
Amazon
Hard
Software Engineer

Design an intersection traffic-light system

System Design: Traffic-Light Control for a Multi-Road Intersection Context Design the software and systems for controlling a signalized, multi-approac...

System DesignSystem Design FundamentalsSimulation & State Machines
29
0
441 people solved
Sep 6, 2025
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