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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
Google logo
Google
Medium
Software Engineer Locked

Solve meeting-room scheduling and shortest paths

This question evaluates proficiency in interval scheduling and resource allocation as well as shortest-path computation in weighted directed graphs, e...

Coding & AlgorithmsIntervals & SchedulingGraphs
11
0
211 people solved
Jan 6, 2026
Rippling logo
Rippling
Hard
Software Engineer AI Locked

Design Scalable Expense Violation Processing

This question evaluates a candidate's competency in large-scale system design, distributed stateful processing, rule-engine architecture, efficient ru...

System DesignSystem Design Fundamentals
86
0
1021 people solved
Feb 27, 2026
Amazon logo
Amazon
Medium
Product Manager

Triage Framework for Prioritizing Bugs, Complaints and Incidents as a PM

Walk the interviewer through how you triage the issues that reach your team, such as bugs, customer-reported problems and production incidents: how yo...

Product / Decision MakingPrioritization & Tradeoffs
1
0
10 people solved
Aug 6, 2026
TikTok logo
TikTok
Medium
Product Manager

Responding as TikTok When a Rival App Copies the Side-by-Side Duet Video Format

You are a product manager at TikTok. A competing app has just launched a feature that closely resembles TikTok's Duet, the tool that lets a creator re...

Product Design & StrategyMarket & Competitive AnalysisProduct Strategy
0
0
11 people solved
Aug 15, 2026
Bank of America logo
Bank of America
Medium
Data Scientist

Compute maximum beauty of a string

Given a string s, define the beauty of each letter a–z as a distinct integer between 1 and 26, case-insensitive. The beauty of a string is the sum ove...

Coding & Algorithms
7
0
133 people solved
Aug 11, 2025
Google logo
Google
Medium
Software Engineer

Design Interval Membership Queries with Linear, Logarithmic, and Constant-Time Options

Interview Prompt Design a class with addNonOverlappingInterval(start, end) and contains(x). Compare a straightforward O(n) query, an O(log n) query, a...

Software Engineering Fundamentals
7
0
74 people solved
Feb 20, 2026
Imc logo
Imc
Hard
Quantitative TraderIntern

Choose and Defend a Betting Strategy Under Uncertain Odds

Prompt You have a fixed bankroll and a sequence of independent matches with quoted odds and match times. Before selected matches, you receive qualitat...

Statistics & Math
5
0
98 people solved
Nov 30, 2025
Google logo
Google
Medium
Software EngineerIntern Locked

Design a logger that returns top-K messages

This question evaluates skills in designing in-memory data structures and algorithms for frequency counting and interval querying, including extractin...

Coding & AlgorithmsData Structure DesignHeaps & Priority Queues
28
0
288 people solved
Jan 6, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Scale a NoSQL Key–Value Store to One Million QPS

Scale a key–value store to 50 million pairs and one million requests per second, balancing reads and writes with sharding, replication, and capacity p...

System DesignKey-Value StoresPartitioning & Consistent Hashing
11
0
90 people solved
Aug 31, 2026
Amazon logo
AmazonPublicis SapientGeico
Medium
Software Engineer

Build the Greatest Non-Leading-Zero Palindrome from Available Digits

Problem Choose at least one digit occurrence from string num, leaving others unused if you wish. Rearrange the chosen digits into a palindrome and ret...

Coding & AlgorithmsGreedyArrays & Strings
1
0
9 people solved
Akuna Capital logo
Akuna Capital
Hard
Software Engineer

Design an order-matching engine

In-Memory Limit Order-Matching Engine (Limit Order Book) Context Design and implement an in-memory, single-instrument limit order book that supports l...

System Design
57
0
536 people solved
Sep 6, 2025
Amazon logo
AmazonDatadog
Easy
Software Engineer

Measure the Maximum Root-to-Leaf Depth of an N-ary Tree

Problem Given Node root, return the greatest number of nodes on a root-to-leaf path. An empty tree has depth zero. Node exposes val and vector<Node> c...

Coding & AlgorithmsTrees
1
0
10 people solved
UiPath logo
UiPath
Easy
Frontend EngineerSenior+ Locked

Build an Event-Driven Folder Browser

Design the state model and component architecture for an editable folder browser with unbounded nesting and stable identity. Support expansion, create...

Software Engineering Fundamentals
1
0
27 people solved
Aug 4, 2026
Google logo
Google
Hard
Software Engineer

Count Positive Numbers with No Repeated Decimal Digit

Problem Return the number of positive integers in the inclusive interval [1, n] whose decimal digits are all distinct. Use each integer's usual decima...

Coding & AlgorithmsMath & Number TheoryBit Manipulation
1
0
10 people solved
Wayfair logo
Wayfair
Easy
Data Scientist Locked

Derive insights and improve complaint resolutions

This question evaluates a data scientist's competency in customer experience analytics, causal inference, experimentation design, and multi-table data...

Analytics & Experimentation
7
0
68 people solved
Feb 18, 2026
Databricks logo
Databricks
Hard
Software Engineer Locked

Find Path Between Fibonacci Tree Nodes

This question evaluates a candidate's ability to reason about recursive tree structures, map preorder indices to positions in a recursively defined Fi...

Coding & AlgorithmsTreesDynamic Programming
21
0
159 people solved
Feb 13, 2026
Amazon logo
Amazon
Medium
Software EngineerSenior+

Search for a Value in a Matrix Sorted as One Continuous Sequence

You are given an m x n integer matrix with two ordering properties: every row is sorted in non-decreasing order, and the first value of each row is st...

Coding & AlgorithmsBinary Search
2
2
17 people solved
Jun 19, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Effective Permissions in an Inheritance DAG with Allow and Deny Lists

Permissions are inherited along the edges of a directed acyclic graph. Each node, such as a group, a folder or a resource, has its own allow list and ...

Software Engineering FundamentalsGraphsAuthentication & Authorization
2
0
19 people solved
Apr 28, 2026
Paytm logo
Paytm
Medium
Product Manager

Swiggy Product Strategy: Getting Customers to Spend More per Order

Swiggy wants customers to spend more each time they order. How would you raise its average order value (AOV)? `hint Start from per-order economics Ask...

Product Design & StrategyGrowth & Monetization
1
0
11 people solved
Mar 28, 2026
Anthropic logo
Anthropic
Medium
Software Engineer

Implement a Least-Recently-Used Cache

Design and implement an in-memory least-recently-used cache. Requirements: - The cache is initialized with a positive integer capacity. - Implement ge...

Coding & Algorithms
5
0
78 people solved
Apr 19, 2026
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