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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
Optiver logo
Optiver
Medium
Software Engineer

Design a balloon stability tracker

Implement a class BalloonFestival to manage hot-air balloons and wind fields over time, and to report rewarded balloons at inspection times. Methods a...

Coding & AlgorithmsData Structure DesignSimulation & State Machines
399
0
4522 people solved
Sep 6, 2025
Glean logo
Glean
Medium
Software Engineer

Implement 2048-Style Tile Slides and Merges for All Four Board Directions

Implement the move logic of a sliding-tile game played on a square board of numbered tiles. A move pushes every tile as far as it can go in one direct...

Software Engineering FundamentalsSimulation & State MachinesGrids & Matrices
2
0
17 people solved
Oct 1, 2026
Infosys logo
InfosysGoogleMicrosoft

Also asked at Microsoft, Meta, Amazon, Bloomberg, TCS, Zoho

Easy
Software Engineer

Give Correct Change to Customers in Order

Problem Each drink costs $5. Starting with no cash, serve the queue in bills order. Each customer buys one drink and pays with a $5, $10 or $20 bill. ...

Coding & AlgorithmsGreedySimulation & State Machines
1
0
20 people solved
Airbnb logo
Airbnb
Hard
Software Engineer Locked

Design a Stateful Working Hours Register

Design a stateful employee working-hours register that handles badge events, completed time, position rankings, delayed promotions, historical pay, an...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
68
0
518 people solved
Jul 20, 2026
Glean logo
Glean
Medium
Software Engineer

Simulate Modulo-Assigned Document Indexers with Wrap-Around and Rank the Busiest

Documents are indexed through a processing queue served by m indexers, numbered 0 to m - 1. Document i (0-based) arrives at time queue_time[i] and nee...

Coding & AlgorithmsSimulation & State MachinesHeaps & Priority Queues
4
0
55 people solved
Sep 30, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Drive a Car to an Unseen Destination Using Only Local Directions Without Circling

A car must reach an unseen destination while only learning which directions are open at each step. Implement the search that finds it without driving ...

Software Engineering FundamentalsGraphsBacktracking & Recursion
6
0
56 people solved
Sep 10, 2026
Glean logo
Glean
Medium
Software Engineer

Implement 2048 Board Tilts in Four Directions with Merging and Game-Over Detection

You are implementing the move logic of the sliding-tile game 2048. The board is a 4 x 4 grid. Each cell is either empty, written 0, or holds a tile wh...

Software Engineering FundamentalsSimulation & State Machines
3
0
44 people solved
Sep 30, 2026
Cursor logo
Cursor
Hard
Software Engineer Locked

Build a Streaming Markdown Code Fence Parser

This Cursor software engineering question asks candidates to build a streaming Markdown code-fence parser that handles partial input and state transit...

Software Engineering FundamentalsParsing & Interpreters
73
0
649 people solved
Jul 2, 2026
Two Sigma logo
Two Sigma
Medium
Software EngineerNew Grad Locked

Allocate IPO Shares and Split a Weighted Tree

Solve two independent coding tasks: distribute limited IPO shares under price and round-robin rules, then choose a cut that best divides a weighted ro...

Coding & AlgorithmsTreesSimulation & State Machines
21
0
287 people solved
Jun 28, 2026
Imbue logo
Imbue
Hard
Software Engineer

Max Score of an Alternating Left-Right Walk Over a Row of Signed Cells

A row of n cells holds integer values, some of which may be negative. A token starts on the leftmost cell with a score of 0. You make at most k moves....

Coding & AlgorithmsDynamic Programming
3
0
21 people solved
Oct 6, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Infection Spread Simulation with Death Threshold

This question evaluates a candidate's ability to implement grid-based simulation with multi-state cellular automaton logic, testing practical applicat...

Coding & AlgorithmsSimulation & State Machines
79
2
594 people solved
Jun 20, 2026
Jane Street logo
Jane Street
Medium
Software Engineer

Implement Connect Four with bottom push-up

Implement a Connect Four variant with bottom push-up. In standard Connect Four a dropped disc falls to the lowest empty cell of a column. In this vari...

Coding & AlgorithmsSimulation & State MachinesData Structure Design
228
1
2639 people solved
Sep 6, 2025
Capital One logo
Capital OneCoinbaseMeta

Also asked at Meta, HubSpot, Dropbox, Airbnb, Google, Okta, Bloomberg, Ramp, Amazon

Medium
Software Engineer

Validate Stateful Account Transactions

Problem Implement a Bank object for accounts numbered from 1 through n. The constructor receives the initial balances, with array position i holding t...

Coding & AlgorithmsData Structure DesignSimulation & State Machines
2
0
30 people solved
Databricks logo
Databricks
Medium
Software EngineerIntern

Design Tic-Tac-Toe and QPS data structures

You are given two independent coding problems that focus on data structure and API design. --- Problem 1: Generalized Tic-Tac-Toe Game with Simple AI ...

Coding & AlgorithmsData Structure DesignSimulation & State Machines
121
2
869 people solved
Nov 13, 2025
OpenAI logo
OpenAI
Medium
Machine Learning Engineer Locked

Model Infection, Immunity, Delayed Death, and Burn Interventions on a Grid

Model a five-stage plant-infection simulation with immunity, countdowns, delayed death, and row-or-column burning while clarifying transition rules.

Software Engineering FundamentalsSimulation & State MachinesGrids & Matrices
14
0
174 people solved
Aug 27, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Read Current and Historical Field Values with Expiration

Process key-and-field database writes, TTL expiration, deletion, and historical reads while preserving past values without rolling back current state.

Coding & AlgorithmsData Structure DesignBinary Search
6
0
103 people solved
Sep 1, 2026
Google logo
Google
Medium
Software Engineer

Design a customer support agent dispatcher that handles mid-request breaks

Design and implement the core of a dispatcher for a customer support team. Customers contact support and wait for help. Human support agents sign in, ...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
3
0
33 people solved
Sep 21, 2026
GitHub logo
GitHub
Medium
Software EngineerSenior+

Battleship Game Logic on a 2D Grid: Object Design, Shots and Production Concerns

Implement the game logic for a game in which a player fires shots at warships placed on a two-dimensional grid, in the style of the classic Battleship...

Software Engineering FundamentalsLow-Level Design (OOP)Multiplayer Game Systems
0
0
3 people solved
Nov 10, 2026
Temu logo
Temu
Medium
Software Engineer

Spiral Order of a Matrix With Blocker Cells That Force Clockwise Turns

You are given an m x n matrix of integers. First, return all of its values in clockwise spiral order, from the outside in: start at the top-left cell,...

Coding & AlgorithmsGrids & MatricesSimulation & State Machines
5
0
53 people solved
Sep 22, 2026
Nuro logo
Nuro
Hard
Software Engineer Locked

Design an Autonomous-Vehicle Simulator

Design an autonomous-driving simulator with model interfaces, synchronized scenarios, reproducible evaluation, timing checks, and fidelity limits.

System DesignSimulation & State MachinesModel Evaluation
7
0
77 people solved
Aug 31, 2026
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