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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
ThoughtSpot logo
ThoughtSpot
Hard
Software Engineer

Maximize Revenue from Rectangular Wood Cuts

Problem A board has height m and width n. Each entry in prices gives an exact height, width and sale value. You may repeatedly cut a current rectangle...

Coding & AlgorithmsDynamic Programming
0
0
6 people solved
Stripe logo
Stripe
Medium
Software Engineer Locked

Validate KYC CSV Records

This question evaluates skills in CSV parsing, string normalization, field-level validation, and rule-based text matching, emphasizing attention to ed...

Coding & Algorithms
12
0
226 people solved
Jan 31, 2026
Capital One logo
Capital One
Medium
Product Manager

Evaluate a Credit Card Partnership

You are a Product Manager evaluating a Capital One credit-card partnership with a merchant such as Uber. The business goal is to increase engagement a...

Product / Decision MakingBusiness Case AnalysisGrowth & Monetization
34
0
263 people solved
Jun 12, 2025
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Meta, Bloomberg

Hard
Software Engineer

Count Strictly Smaller Later Occurrences for Every Position

Problem Return counts where counts[i] is the number of indices j>i with nums[j]<nums[i]. Equal later values do not count. `cpp vector<int> countSmalle...

Coding & AlgorithmsSortingTrees
0
0
11 people solved
DoorDash logo
DoorDash
Medium
Data ScientistSenior+ Locked

Evaluate a Bike-Delivery Pilot with Marketplace Metrics

A marketplace experimentation case about launching a bike-delivery option. Candidates select a city, quantify parking friction, define business and op...

Analytics & Experimentation
9
0
81 people solved
Jul 18, 2026
Palantir logo
Palantir
Medium
Software Engineer

Solve two algorithm problems from a menu

Choose two problems from an algorithms menu (arrays, strings, hash maps, graphs). For each: 1) state clarifying assumptions, 2) implement a correct so...

Coding & AlgorithmsArrays & StringsGraphs
32
0
311 people solved
Jul 26, 2025
Capital One logo
Capital One
Medium
Software Engineer

Describe leadership challenges and managing a difficult report

Answer the following behavioral questions with specific examples: 1. In a project you led, what was the most challenging part and why? 2. Tell me abou...

Behavioral & LeadershipLeadership & InfluenceConflict & Collaboration
22
0
154 people solved
Dec 25, 2025
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Bloomberg, Meta

Easy
Software Engineer

Identify the Hub of a Guaranteed Star

Problem edges describes a valid undirected star on vertices labeled 1..n: one center is connected to every other vertex, with no other edges. Return t...

Coding & AlgorithmsGraphs
1
0
8 people solved
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Design Chatbot Personalization Memory

This question evaluates competency in designing per-user chatbot memory systems, including data modeling for durable memories, retrieval-augmented gen...

ML System DesignRetrieval-Augmented GenerationEmbeddings & Vector Search
18
0
168 people solved
May 7, 2026
Google logo
GoogleMetaAmazon
Medium
Software Engineer

Choose Exam Questions with Forced Skips

Problem An exam contains questions in a fixed order. questions[i] = [points, brainpower] describes question i. Solving it earns points but prevents so...

Coding & AlgorithmsDynamic Programming
0
0
11 people solved
Google logo
Google
Medium
Data Scientist

Deduplicate events and rank products with SQL

You are given two tables. Schema: - events(event_id INT PRIMARY KEY, user_id INT, product_id INT, event_time TIMESTAMP, idempotency_key TEXT, amount_c...

Data Manipulation (SQL/Python)
16
1
115 people solved
Oct 13, 2025
Datadog logo
Datadog
Hard
Software Engineer

Implement Prefix Match Filter

Design a data structure that stores a collection of prefix strings. Then, given a list of input strings, return every string that begins with at least...

Coding & AlgorithmsData Structure DesignString Algorithms
32
0
251 people solved
Feb 25, 2026
Amazon logo
AmazonGoogle
Hard
Software Engineer

Add Distinct-Letter Counts across Every Substring

Problem The appeal of a string is the number of distinct letters it contains. Given a lowercase string s, return the total appeal of all its nonempty ...

Coding & AlgorithmsArrays & StringsDynamic Programming
0
0
10 people solved
Twitch logo
Twitch
Medium
Software Engineer

Solve four design-leaning coding problems

You are given four independent interview-style coding tasks. For each task, implement the requested function/class with clear inputs/outputs and reaso...

Coding & AlgorithmsData Structure DesignSimulation & State Machines
33
0
244 people solved
Oct 26, 2025
Ramp logo
Ramp
Medium
Software Engineer

Multi-Level Warehouse Storage with Weighted Retrieval

Multi-Level Warehouse Storage with Weighted Retrieval You are building the in-memory engine for an automated warehouse. The warehouse is a stack of ho...

Coding & Algorithms
14
0
124 people solved
Feb 11, 2026
Intuit logo
Intuit
Easy
Software Engineer Locked

Add One to Digit Array

This question evaluates proficiency in array manipulation and elementary arithmetic on digit sequences, specifically carrying operations and edge-case...

Coding & Algorithms
5
2
66 people solved
Jun 5, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Microsoft, Accenture

Medium
Software Engineer

Maximize the Weighted Sum Over Clockwise Rotations

Maximize the Weighted Sum Over Clockwise Rotations Given an integer array nums of length n, let arr_k be the array obtained by rotating it clockwise b...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
8 people solved
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Prevent Private Code Leakage in Coding Agents

This question evaluates competency in ML system design, data privacy and security, model training and inference safeguards, and mechanisms for detecti...

ML System DesignAI Safety & AlignmentLLM Applications
10
0
142 people solved
Apr 9, 2026
Goldman Sachs logo
Goldman Sachs
Easy
Data ScientistIntern Locked

Integrate a Two-Sided Exponential Density

For a random variable with density 0.5 times exp(-abs(x)), compute the probability that it lies between 1 and 3.

Statistics & Math
5
0
42 people solved
Sep 2, 2026
Tradedesk logo
Tradedesk
Medium
Frontend Engineer Locked

Implement a Publish-Subscribe Event Bus in JavaScript or TypeScript

A front-end coding question asking the candidate to implement an in-process publish-subscribe utility in JavaScript or TypeScript with subscribe, publ...

Software Engineering FundamentalsJavaScript & TypeScriptData Structure Design
3
0
42 people solved
Sep 15, 2026
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