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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
639
Companies
980
Updated
11.10.2026
639 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
Rippling logo
Rippling
Medium
Software Engineer Locked

Implement A Prioritized Task Scheduler With Parent Dependencies

Review a task scheduler implementation prompt with filtering, due-date ordering, high-priority tie-breaks, create-time ordering, and parent dependenci...

Software Engineering FundamentalsSortingGraphs
169
3
1130 people solved
Jul 3, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Reconstruct an Itinerary from Flight Tickets

Reconstruct an itinerary starting at JFK that uses every flight ticket exactly once, including duplicate tickets and cycles. When several complete iti...

Coding & AlgorithmsGraphsSorting
31
0
208 people solved
Aug 7, 2026
Amazon logo
Amazon
Medium
Software Engineer

Add One Source to Minimize Grid Inconvenience

Add One Source to Minimize Grid Inconvenience Implement min_max_inconvenience(grid). grid is a non-empty rectangular matrix containing 0 and 1. A cell...

Coding & AlgorithmsGrids & MatricesGraphs
21
0
254 people solved
Jul 9, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Microsoft, Apple, Oracle, Snowflake

Medium
Software Engineer

Reach Every Room Using Collected Keys

Problem Only room 0 is initially unlocked. rooms[i] lists the distinct room keys available inside room i. Once visited, you may keep all of its keys a...

Coding & AlgorithmsGraphs
2
0
14 people solved
Amazon logo
Amazon
Medium
Software EngineerIntern

Implement Cache and Count Components

You are asked to solve two independent coding problems in this session, each followed by a short discussion. This mirrors a 60-minute Amazon SDE codin...

Coding & AlgorithmsData Structure DesignGraphs
48
0
573 people solved
Mar 7, 2026
StubHub logo
StubHub
Medium
Software EngineerNew Grad

Per-Frame Bounce Controller for a Flappy Bird-Style Pipe Game Simulator

In an online assessment you receive a small Python project for a Flappy Bird-style game (the task is called BouncyCosmo) and must implement the strate...

Software Engineering FundamentalsSimulation & State MachinesGraphs
0
0
3 people solved
Nov 4, 2026
Instacart logo
Instacart
Medium
Software Engineer Locked

Resolve a Variable Through Literal and Reference Assignments

Resolve a target variable through an acyclic chain of named assignments until reaching an integer literal, independent of definition order.

Coding & AlgorithmsGraphs
9
0
74 people solved
Sep 11, 2026
Unity logo
Unity
Medium
Software Engineer

Implement a Lightweight ETL Pipeline Scheduler in Python

Implement, in Python, a lightweight scheduler for an ETL (extract, transform, load) pipeline. The interviewer described the logic as simple; the round...

Software Engineering FundamentalsJob Scheduling & WorkflowsGraphs
6
0
47 people solved
Oct 9, 2026
Stripe logo
Stripe
Medium
Software Engineer

Plan bicycle routes on a city map

You are given a city bicycle network as a weighted graph where edges encode distance, bike-lane availability, elevation gain, and traffic risk. Comput...

Coding & AlgorithmsGraphs
74
0
848 people solved
Sep 6, 2025
Amazon logo
Amazon
Medium
Software EngineerIntern

Find a valid dependency order

You are given n tasks labeled from 0 to n - 1 and a list of dependency pairs dependencies, where each pair [a, b] means task b must be completed befor...

Coding & AlgorithmsGraphs
38
0
442 people solved
Feb 15, 2026
Airbnb logo
AirbnbGoogleRippling

Also asked at Rippling, Ramp, Amazon, Waymo, OpenAI

Hard
Software Engineer

Maintain Spreadsheet Cells with Persistent Sum Dependencies

Problem Implement Excel(height,width), with rows 1..height and columns A..width initially zero. set(row,column,val) replaces a cell value and removes ...

Coding & AlgorithmsData Structure DesignGraphs
3
0
24 people solved
MongoDB logo
MongoDB
Hard
Software Engineer

Build an Exactly-Once Crawler and Add Safe Concurrency

Implement a web crawler using the supplied operation fetchAndParse(String url), which returns the links on that page. Your entry point is void crawl(S...

Software Engineering FundamentalsConcurrencyFault Tolerance & Failover
8
0
77 people solved
Aug 9, 2026
Nutanix logo
NutanixAppleDoorDash
Hard
Software Engineer

Best Unique-Node Value on a Timed Return Walk

Problem An undirected graph has vertices numbered from 0 through n - 1, with value values[i] at vertex i. Each edge [u, v, travelTime] takes travelTim...

Coding & AlgorithmsBacktracking & RecursionGraphs
0
0
15 people solved
Databricks logo
Databricks
Medium
Software Engineer

Implement Random Connectivity and Grid Routing

This entry contains two independent coding problems. Problem 1: Uniformly connect node groups You are given k non-empty, disjoint groups of unique nod...

Coding & AlgorithmsGraphsGrids & Matrices
23
1
270 people solved
Apr 17, 2026
Qualified Health logo
Qualified Health
Hard
Software Engineer

Validate Editable DAGs and Bound Runtime Repetition

A workflow platform lets users create and modify dependency graphs. It must reject cyclic DAG definitions, and it also supports dynamic conditional br...

System DesignGraphsJob Scheduling & Workflows
2
0
18 people solved
Sep 30, 2026
IBM logo
IBM
Medium
Software Engineer Locked

Count Tree Vertices with Pythagorean Distances

Count tree vertices whose positive distances to three fixed vertices form a Pythagorean triple, including distance ordering and large-tree edge cases.

Coding & AlgorithmsTreesGraphs
11
0
140 people solved
Aug 31, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Collect Pins from Reachable Boards

Traverse a directed graph of boards in deterministic breadth-first order and collect each reachable pin only on its first appearance. Handle cycles an...

Coding & AlgorithmsGraphs
16
0
177 people solved
Jul 2, 2026
Google logo
GoogleUberAmazon
Medium
Software Engineer

First Timestamp When All People Are Connected

Problem People are labeled 0 through n-1. A log [timestamp,x,y] adds a symmetric friendship between x and y, which persists. Acquaintance includes fri...

Coding & AlgorithmsGraphsSorting
0
0
13 people solved
Netflix logo
Netflix
Medium
Software Engineer

Implement ordering and undo executor

The interview included two coding tasks: 1. Dependency ordering: Given a set of tasks and their dependency relationships, return a valid execution ord...

Coding & AlgorithmsGraphsStacks & Queues
29
1
224 people solved
Apr 15, 2026
Akuna Capital logo
Akuna CapitalGoogle
Medium
Software Engineer

Choose a Center and up to k Neighbors for Maximum Star Value

Problem In the undirected graph edges, a star contains one center node and any subset of its neighbors using at most k incident edges. Its value is th...

Coding & AlgorithmsGraphsGreedy
1
0
12 people solved
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