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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k Questions 980 Companies11.12.2026
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
Palantir logo
PalantirGoogleMicrosoftBloomberg

Also asked at Microsoft, Bloomberg

Medium
Software Engineer

Find Pattern Starts with a Nearby Second Pattern

Find Pattern Starts with a Nearby Second Pattern You are given a 0-indexed string s, strings a and b, and an integer k. Return every index i satisfyin...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
2
0
34 people solved
NVIDIA logo
NVIDIA
Hard
Software EngineerSenior+ Locked

Count Substrings with No Repeated Characters

Count all nonempty contiguous substrings of a lowercase string that contain no repeated character. The input may contain 100,000 characters, and equal...

Coding & Algorithms
8
0
125 people solved
Jul 16, 2026
Deshaw logo
DeshawMicrosoftJPMorgan Chase

Also asked at JPMorgan Chase, IBM, Amazon, Dell, Google, Meta, Bloomberg, Wells Fargo, Oracle, TikTok, Uber, Salesforce

Easy
Software Engineer

Count Equal-Size Adjacent Binary Runs

Problem Return the number of nonempty substrings of s containing the same positive number of zeros and ones, with all zeros consecutive and all ones c...

Coding & AlgorithmsArrays & Strings
1
0
14 people solved
Physical Intelligence logo
Physical Intelligence
Hard
Software Engineer

Build and Present an Embedding Pipeline in 90 Minutes Using AI Coding Agents

This is a 90-minute mini project with two interviewers watching. You log in over SSH to a prepared environment that already contains: - a dataset for ...

Software Engineering FundamentalsAI-Assisted DevelopmentEmbeddings & Vector Search
6
0
70 people solved
Sep 8, 2026
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Amazon, Bloomberg, NVIDIA, Snapchat, TCS, Goldman Sachs, Qualcomm

Easy
Software Engineer

Recognize an Integer Power of Two

Recognize an Integer Power of Two Given an integer n, return true exactly when there is an integer exponent x for which n = 2^x. Otherwise return fals...

Coding & AlgorithmsBit ManipulationMath & Number Theory
0
0
9 people solved
Capital One logo
Capital One
Medium
Software Engineer Locked

Reason About and Validate Virtual Card Transactions

Reason through a virtual-card product and validate transactions from encoded card and transaction flags. The exercise combines product trade-offs with...

Software Engineering FundamentalsPayments & Ledgers
33
0
330 people solved
Jul 4, 2026
Grammarly logo
GrammarlyGoogleAmazon

Also asked at Amazon, Microsoft, Meta, Bloomberg

Hard
Software Engineer

Recover a Binary Tree from Preorder Values with Dash Depths

Problem The string traversal records a valid preorder walk of a binary tree. Each node is written as D dashes followed by its positive decimal value, ...

Coding & AlgorithmsTreesParsing & Interpreters
1
0
14 people solved
Jump Trading logo
Jump Trading
Easy
Software Engineer Locked

Identify Files That Need Synchronization

Identify source files requiring synchronization by parsing metadata, checking source readability, destination presence and writability, and size or mo...

Coding & Algorithms
25
0
208 people solved
Aug 12, 2026
Revolut logo
Revolut
Medium
Product Manager

Revolut Money Transfers Abroad: Segments and Levers for a 2x Usage Goal

Revolut is a financial app that lets customers hold and exchange many currencies and send money to people and accounts in other countries. As a produc...

Product Design & StrategyGrowth & MonetizationMetrics & KPIs
2
0
15 people solved
Sep 7, 2026
Lime logo
Lime
Easy
Software Engineer

Combine Overlapping Closed Intervals Into a Sorted Disjoint List

You are given a list of closed intervals with integer endpoints, in no particular order. Combine every group of overlapping intervals into a single in...

Coding & AlgorithmsIntervals & SchedulingSorting
1
0
21 people solved
Oct 7, 2026
Together AI logo
Together AI
Medium
Software Engineer

Design a Task Scheduler Across Multiple Compute Clusters

Design a task scheduling system that assigns many tasks to multiple compute clusters and tracks each task through completion. Requirements and Constra...

System DesignJob Scheduling & WorkflowsDistributed Coordination
13
0
105 people solved
Apr 19, 2026
Microsoft logo
Microsoft
Easy
Software Engineer

Handling a Deadline You Will Miss, and Why Adding Engineers Late Backfires

You own a task, and partway through you realize it cannot be delivered by its deadline. What do you do? This question came up in two behavioral rounds...

Behavioral & LeadershipOwnership & ExecutionCommunication & Stakeholders
1
0
23 people solved
Sep 30, 2026
Atlassian logo
Atlassian
Medium
Software Engineer

Design a trie-based URL router with wildcards

Design a trie-based URL router with wildcards Implement a URL routing matcher that supports adding route patterns and matching request paths, using a ...

Coding & AlgorithmsData Structure DesignTrees
98
2
697 people solved
Jul 31, 2025
Google logo
GoogleMetaAmazonRubrik

Also asked at Amazon, Rubrik

Hard
Software Engineer

Track Coverage of Half-Open Real Intervals

Problem Implement RangeModule, initially tracking no numbers. addRange(left,right) includes every real x with left<=x<right. removeRange stops trackin...

Coding & AlgorithmsIntervals & SchedulingData Structure Design
1
0
16 people solved
Wayfair logo
Wayfair
Medium
Applied Scientist Locked

Set Bids for Search Advertising from Business Value

Design search-ad bidding from expected business value, with budget pacing, delayed conversion feedback, auction assumptions, and incremental-profit ev...

ML System DesignCTR Prediction & Ads MLAds Systems
2
0
23 people solved
Sep 10, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad Locked

Design an Object-Oriented Shopping Cart

Design an object-oriented shopping cart with exact money handling, extensible pricing rules, concurrency control, and auditable totals.

Software Engineering Fundamentals
53
1
843 people solved
Sep 2, 2026
Legora logo
Legora
Medium
Software Engineer Locked

Design a Scalable File Upload and Content Extraction Pipeline

Design an asynchronous file-upload and content-extraction system for a language-model workflow, including APIs, storage, queues, workers, retries, and...

System Design
19
0
134 people solved
Jun 22, 2026
Engelhart logo
Engelhart
Medium
Software Engineer

Python Abstract Classes and Instance, Class and Static Methods

Explain abstract classes and the three kinds of methods a Python class can define. These came as a quick oral sequence in the fundamentals half of a t...

Software Engineering FundamentalsProgramming Languages
1
0
11 people solved
Sep 19, 2026
TikTok logo
TikTok
Medium
Product Manager

TikTok Cold Start: Using AI to Personalize a Brand-New Viewer's First Feed

You are a product manager at TikTok. A person who opens the app for the first time has no viewing history, so the For You feed has very little to pers...

Product Design & StrategyAI Product ManagementPersonalization
2
0
18 people solved
Oct 1, 2026
Yandex logo
YandexAdobeRoblox

Also asked at Roblox, VK, Amazon, Google, Snowflake, Samsung, Apple

Medium
Software Engineer

Choose an Empty Seat with the Best Nearest-Neighbor Distance

Problem seats marks occupied positions with 1 and empty positions with 0. Choose an empty position to maximize its index distance to the closest occup...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
11 people solved
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