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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
Tesla logo
Tesla
Easy
Software Engineer Locked

Design a JSON Merge API with Pluggable Behaviors

Design a non-mutating JSON merge API with selectable overwrite or append behavior for arrays. Define recursive object handling and exact semantics for...

Software Engineering Fundamentals
10
0
139 people solved
Aug 5, 2026
OpenAI logo
OpenAI
Hard
Software Engineer

Model particle hits on a screen

A point source at (0, 0) emits particles toward an infinite vertical screen located at x = 1. For each particle, sample an angle theta uniformly from ...

Software Engineering FundamentalsProbability
58
0
511 people solved
Feb 22, 2026
Shopify logo
Shopify
Medium
Software EngineerSenior+

Engineering Manager Career Story: Team Impact, Quality Bar and Performance Management

In a loop that considers you for an engineering management role, a second life-story round focuses on your career as a manager. The interviewer wants ...

Behavioral & LeadershipMentoring & Team GrowthOwnership & Execution
1
0
14 people solved
Aug 10, 2026
Roblox logo
Roblox
Medium
Software Engineer

Find most frequent call stack from logs

Given an array of log entries for a single-threaded program's function calls, each entry is either '->Name' (function entry) or '<-Name' (function exi...

Coding & AlgorithmsStacks & Queues
118
1
1071 people solved
Aug 11, 2025
Microsoft logo
MicrosoftGoogleMeta

Also asked at Meta, Bloomberg, Aqr

Medium
Software Engineer

Maximize the Score of Bounded Forward Jumps

Problem Start at index 0 of nums and finish at its final index. Each jump advances between 1 and k positions without leaving the array. Your score inc...

Coding & AlgorithmsDynamic ProgrammingStacks & Queues
0
0
10 people solved
Amazon logo
AmazonMicrosoftMeta
Medium
Software Engineer

Winner Under a Divisible-by-Three Losing Rule

Problem Alice and Bob alternately remove any one stone, with Alice moving first. The player who makes the total value of all removed stones divisible ...

Coding & AlgorithmsMath & Number TheorySimulation & State Machines
0
0
7 people solved
Google logo
GoogleAmazon
Easy
Software Engineer

Divisibility by Combined Digit Values

Divisibility by Combined Digit Values Given a positive integer n, let S be the sum of its decimal digits and P be the product of those digits. Return ...

Coding & AlgorithmsMath & Number Theory
0
0
10 people solved
Meta logo
Meta
Medium
Machine Learning Engineer

Solve Two String Problems

The interview included two coding questions: 1. Exactly one edit apart Given two strings s and t, determine whether they are exactly one edit apart...

Coding & Algorithms
8
0
101 people solved
Apr 12, 2026
Amazon logo
Amazon
Easy
Software EngineerIntern Locked

Compute the Minimum Number of Meeting Rooms

Compute the fewest rooms needed to host a set of half-open meeting intervals. The challenge focuses on concurrent-activity tracking, precise treatment...

Coding & Algorithms
5
0
97 people solved
Aug 1, 2026
Amazon logo
AmazonMicrosoftOracle

Also asked at Oracle, Google, HashedIn

Hard
Software Engineer

Choose a Shared Array Value with Minimum Weighted Unit Cost

Problem Changing nums[i] by one in either direction costs cost[i]. You may make any number of such changes. Return the minimum total cost needed to ma...

Coding & AlgorithmsMath & Number TheorySorting
0
0
8 people solved
Pinterest logo
Pinterest
Medium
Data ScientistSenior+ Locked

Size an Opportunity and Present It with Clear Visuals

Structure a data science case that sizes a business opportunity from partial information and presents it to senior decision-makers. Build top-down and...

Analytics & Experimentation
16
0
106 people solved
Jun 14, 2026
Decagon logo
Decagon
Medium
Software Engineer Locked

Design Sliding-Window Average Tracker

This question evaluates design and implementation of a time-windowed tracking data structure, focusing on streaming aggregation, handling monotonic ti...

Coding & AlgorithmsData Structure DesignStacks & Queues
24
0
270 people solved
Jan 31, 2026
Agoda logo
Agoda
Medium
Product Manager

Advise Agoda's CEO on Adding Spa Treatment Booking: Strategy and Pilot Plan

You are a product manager at Agoda, the online travel booking platform. The CEO is weighing whether to let customers book spa treatments through Agoda...

Product Design & StrategyProduct StrategyGrowth & Monetization
1
0
10 people solved
Aug 5, 2026
TCS logo
TCSMetaGoogleWipro

Also asked at Google, Wipro

Easy
Software Engineer

Check Constant Values along Down-Right Diagonals

Problem Return whether every diagonal running from upper left to lower right in matrix contains one repeated value. Single-cell diagonals satisfy the ...

Coding & AlgorithmsGrids & Matrices
1
0
13 people solved
Otter.Ai logo
Otter.Ai
Medium
Software EngineerSenior+

Fewest Adjacent-GCD Operations to Turn Every Array Element into 1

You are given an array nums of positive integers. In one operation, you choose an index i with 0 <= i < len(nums) - 1 and replace either nums[i] or nu...

Coding & AlgorithmsMath & Number Theory
3
0
26 people solved
Aug 4, 2026
Google logo
GoogleMetaAmazonBloomberg

Also asked at Amazon, Bloomberg

Easy
Software Engineer

Sum Binary-Search-Tree Values inside an Inclusive Interval

Problem Given a binary-search-tree root and bounds low and high, return the sum of every node value in the inclusive interval [low,high]. `cpp class S...

Coding & AlgorithmsTrees
1
0
12 people solved
Voleon logo
Voleon
Medium
Software Engineer

Implement sparse matrix addition and multiplication

Implement sparse-matrix operations with explicit error handling. Sparse matrix A matrix A has dimensions r x c and is sparse, meaning most entries are...

Coding & AlgorithmsData Structure Design
63
0
613 people solved
Dec 9, 2025
Meta logo
Meta
Hard
Data Engineer

Evaluate impact of short videos in feed

Scenario You work on a social app’s main News Feed. The team wants to introduce a short-form video module ("Reels") into the feed. Prompt 1. How would...

System DesignExperiment Design (A/B Testing)Launch Evaluation
23
1
211 people solved
Dec 1, 2025
Tesla logo
TeslaZomatoGoogle

Also asked at Google, Amazon, Bloomberg, Microsoft, Meta, Meesho, CoinDCX

Medium
Software Engineer

Exchange Neighboring Seat Assignments in the Result

Problem Return the Seat assignment after exchanging each consecutive pair of students: seats 1 and 2, then 3 and 4, and so on. If the student count is...

Data Manipulation (SQL/Python)SQL
1
0
9 people solved
Meta logo
Meta
Medium
Software EngineerSenior+ Locked

Design Search And Web Crawling Systems

This question evaluates system-design and distributed-systems competencies including large-scale indexing and query-serving, relevance ranking and per...

System Design
11
0
108 people solved
May 21, 2026
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