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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
Amazon logo
Amazon
Medium
Software EngineerSenior+

Versioned Integer Array with Snapshots and Point-in-Time Reads

Build a fixed-length array of integers that remembers its history. Every element starts at 0. You can change elements, take numbered snapshots of the ...

Coding & AlgorithmsData Structure DesignBinary Search
3
2
25 people solved
Aug 27, 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

Return the Top Two Teams by Points, Goal Difference, and Tie Breakers

Rank competition teams by points, goal difference, goals scored, and an explicit index tie rule, then return the first two team indices.

Coding & AlgorithmsSorting
7
0
85 people solved
Aug 27, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Add Consecutive-Value Bonuses to Grid Paths

Extend the maximum-score grid path with bonuses for equal adjacent values and strictly increasing triples of visited cells. Dynamic programming must r...

Coding & Algorithms
11
0
213 people solved
Jun 11, 2026
Posthog logo
Posthog
Medium
Software Engineer Locked

Design Product Analytics and Event Capture for a Small E-Commerce Store

Design analytics for a small independent e-commerce store, with the emphasis on how behavioral and purchase data is gathered in the first place. It te...

System DesignSystem Design FundamentalsData Ingestion & CDC
2
0
34 people solved
Sep 12, 2026
Uber logo
Uber
Hard
Software EngineerSenior+ Locked

Design Distributed Storage for Large Structured Data

Design distributed storage with versioned metadata, block replicas, layered caches, failure repair, locality-aware jobs, and resource-aware load balan...

System DesignFile & Media StorageCaching
5
0
52 people solved
Sep 9, 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
Headway logo
Headway
Medium
Software EngineerSenior+ Locked

Design a Rental Search and Booking Platform from Startup to Scale

Design a short-term rental search and booking platform that can evolve from a startup architecture to large-scale traffic. Balance fast, possibly stal...

System Design
19
0
135 people solved
Jun 15, 2026
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
49
0
575 people solved
Mar 7, 2026
Goldman Sachs logo
Goldman Sachs
Medium
Software Engineer

Overlapping Meetings and Minimum Rooms: No Sweep Line, No Library Sort, Streams, Logs

You are given a list of meetings, each with an integer start time and end time, start < end. This round was a chain of questions on the same input, ea...

Software Engineering FundamentalsIntervals & SchedulingHeaps & Priority Queues
1
0
19 people solved
Oct 5, 2026
Optiver logo
Optiver
Medium
Software Engineer Locked

Fastest Rolling One-Kilometer Average Speed from 5-Second Distance Samples

Given the meters a runner covers in each 5-second interval, find the fastest average speed over a rolling one-kilometer stretch, defined as the shorte...

Coding & AlgorithmsTwo Pointers & Sliding Window
8
0
111 people solved
Sep 13, 2026
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Quantitative Trader

Counting Rows Formed From Two Kinds of Identical Items

You have $A$ identical items of one kind and $B$ identical items of a second kind. You choose $C$ of these items and arrange them in a row. How many d...

Statistics & MathPuzzles & BrainteasersMath & Number Theory
2
0
44 people solved
Sep 19, 2026
Amazon logo
AmazonIBMGoogle

Also asked at Google, Meta, Microsoft, Bloomberg, Infosys, Paytm, TCS, Oracle, American Express

Medium
Software Engineer

Locate a Cycle Entry without Changing the List

Problem Return the original node at which a singly linked-list cycle begins, or null if there is no cycle. Do not modify the list. A test display may ...

Coding & AlgorithmsLinked Lists
1
0
8 people solved
Anyscale logo
Anyscale
Medium
Software Engineer

Design a Service That Sends a JSON Payload to a URL at a Scheduled Time

Design a system that accepts JSON requests of the following form and, at the time given in timestamp, sends data to url: `json { "url": "https://exa...

System DesignJob Scheduling & WorkflowsDistributed Transactions & Idempotency
0
0
14 people solved
Sep 11, 2026
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
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
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
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
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
Uber logo
Uber
Medium
Machine Learning Engineer

Where to apply ML in a task flow from customer request to driver-uploaded evidence

This was a short, free-form design discussion at the end of a phone screen. The interviewer described a platform on which customers submit tasks that ...

ML System DesignLLM ApplicationsModel Evaluation
3
0
36 people solved
Aug 5, 2026
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