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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
ByteDance logo
ByteDance
Medium
Software EngineerIntern

Clockwise Spiral Traversal of a Matrix With O(1) Extra Space and No Mutation

Given an m x n integer matrix, return all of its elements in spiral order. Start at the top-left cell, move right along the top row, then down the rig...

Coding & AlgorithmsGrids & Matrices
2
0
37 people solved
Sep 25, 2026
Airbnb logo
Airbnb
Medium
Software EngineerSenior+

Parse Query Parameters Into a Map

Implement a function that parses the query portion of a GET URL and returns a map from query keys to parsed values. Input is a string that may start w...

Coding & Algorithms
13
1
178 people solved
Mar 2, 2026
Amazon logo
AmazonInfosysMicrosoft

Also asked at Microsoft, Google, Meta, LINE

Hard
Software Engineer

Minimum Total Cost of All Required Stick Cuts

Problem A stick spans 0..n. Every distinct position in cuts must be cut once,in an order you may choose. Cutting a current piece costs that piece's le...

Coding & AlgorithmsDynamic ProgrammingSorting
1
0
8 people solved
Microsoft logo
Microsoft
Medium
Product Manager

Microsoft Teams Product Design for Globally Distributed Coworkers

You are a product manager on Microsoft Teams. Design a Teams feature that makes it easier for colleagues who work in different time zones to collabora...

Product Design & StrategyProduct Design & ImprovementMetrics & KPIs
1
0
12 people solved
Sep 21, 2026
Flipkart logo
FlipkartAmazonGoogle

Also asked at Google, Bloomberg, Meta, Microsoft, PhonePe, Adobe, Barclays

Medium
Software Engineer

Earliest Day for m Disjoint Adjacent-Flower Bouquets

Problem Flower i becomes available on bloomDay[i]. Each bouquet requires k adjacent garden positions,all bloomed by the chosen day,and each flower may...

Coding & AlgorithmsBinary SearchArrays & Strings
0
0
8 people solved
Assort Health logo
Assort Health
Medium
Software Engineer Locked

Build Lab and Consultation Appointment Matches

Validate 10-minute provider availability records, merge contiguous slots by provider and appointment type, generate every 30-minute appointment at 10-...

Coding & Algorithms
4
0
42 people solved
Aug 19, 2026
Apple logo
Apple
Medium
Software Engineer

Solve 15 common interview problems

Below are fifteen independent coding problems commonly discussed in software engineering interviews. For each one, write an efficient algorithm and be...

Coding & AlgorithmsArrays & StringsGraphs
23
1
221 people solved
Jan 27, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Explain Polymorphism and Binary Trees, and How You Use AI Tools as an Engineer

In a technical round with no coding problem, the interviewer asked about computer science fundamentals and about how you use AI. Answer the three prom...

Software Engineering FundamentalsTreesAI-Assisted Development
2
0
19 people solved
Jul 16, 2026
Okta logo
Okta
Medium
Software Engineer Locked

Scale an Authorization Checker

Extend the role-permission access checker for multithreaded and distributed execution, addressing consistency, concurrency, and scaling trade-offs.

System Design
5
0
74 people solved
Aug 20, 2026
Reddit logo
Reddit
Medium
Software Engineer

Implement a sliding-window rate limiter

Problem Design and implement an in-memory rate limiter using a sliding time window. You are given a stream of requests. Each request has: - key (e.g.,...

Coding & AlgorithmsRate LimitingData Structure Design
27
0
308 people solved
Nov 10, 2025
ByteDance logo
ByteDance
Hard
Data ScientistIntern

Predict Short-Video Engagement with Skewed Data

Predict Short-Video Engagement with Skewed Data You need to predict a future engagement quantity for a short video. Explain what data you would reques...

Machine LearningSupervised LearningFeature Engineering
1
0
22 people solved
Sep 11, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Design a Real-Time Collaborative Document Editor with Concurrent Editing

Design a browser-based document editor in which several people can work on the same document at the same time, similar to Google Docs. Each collaborat...

System DesignReal-Time SystemsConsistency & Availability
0
0
10 people solved
Aug 7, 2026
Google logo
GoogleIBMMeesho

Also asked at Meesho, Microsoft, Amazon

Medium
Software Engineer

Reach a Signed Destination with Increasing Step Sizes

Problem Begin at zero. On move i, starting with i=1, travel exactly i units either left or right. Return the smallest move count that can reach the no...

Coding & AlgorithmsMath & Number Theory
1
0
12 people solved
Google logo
Google
Medium
Product Manager

Ranking Google Play Store ads: objective, install prediction signals, and auction

In a product manager interview at Google, you are asked to design the system that decides which ads people see in the Google Play Store and in what or...

Machine LearningAI Product ManagementCTR Prediction & Ads ML
2
0
19 people solved
Jul 4, 2026
Capital One logo
Capital One
Medium
Software Engineer

Solve four algorithmic coding tasks

You are given four independent coding tasks. They may be solved in any order, and partial test-case credit is awarded for each task. The tasks are rou...

Coding & AlgorithmsTreesSimulation & State Machines
115
0
778 people solved
Sep 6, 2025
Visa logo
Visa
Medium
Software Engineer

Minimum Travel Cost Between Array Indices

Minimum Travel Cost Between Array Indices You are given a strictly increasing integer array nums and a list of independent queries queries. For an ind...

Coding & AlgorithmsArrays & StringsGraphs
0
0
11 people solved
Palo Alto Networks logo
Palo Alto Networks
Medium
Software Engineer

Design a thread-safe high-QPS rate limiter

Question You are building a backend service that must enforce API rate limits. Design and (at a high level) implement a rate limiter, then work throug...

System Design
22
0
168 people solved
Feb 18, 2026
Bloomberg logo
BloombergGoogle
Medium
Software Engineer

Search a Dictionary after Exactly One Character Replacement

Problem Implement MagicDictionary(), buildDict(dictionary), and search(searchWord). The dictionary is built once from distinct lowercase words. search...

Coding & AlgorithmsData Structure DesignArrays & Strings
1
0
13 people solved
Reddit logo
Reddit
Medium
Backend Engineer

Design Tennis Scoring with Pluggable Rules

Design Tennis Scoring with Pluggable Rules Prompt Design a small scoring component for one tennis game between two players. It must record which playe...

Software Engineering Fundamentals
11
0
116 people solved
May 6, 2026
Ramp logo
Ramp
Medium
Software Engineer

Maximize Earnings by Converting Days Off into Workdays

Maximize Earnings by Converting Days Off into Workdays An employee is planning a work schedule for n consecutive days. For day i you are given whether...

Coding & Algorithms
22
0
149 people solved
Mar 11, 2026
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