PracHub
QuestionsExperienceLearningGuidesInterview Prep
Visa Tools

Visa Tools

Visa Sponsors

Find employers with sponsorship filings

H-1B Odds Calculator

Explore your lottery selection odds

Visa Bulletin

Monthly green-card priority dates

PracHub

Master your tech interviews with 18,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities
  • Careers

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • Blind 75
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
509
Companies
980
Updated
11.08.2026
509 Questions 980 Companies11.08.2026
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
Pinterest logo
Pinterest
Hard
Software Engineer Locked

Insert Plus or Times Between Ordered Numbers to Reach a Target, Evaluated Left to Right

Decide whether placing a plus or times operator between every pair of adjacent numbers, kept in their original order, can produce a target value when ...

Coding & AlgorithmsBacktracking & Recursion
7
0
106 people solved
Sep 2, 2026
Scale AI logo
Scale AI
Medium
Software EngineerNew Grad

Least-Privileged Key Unlocking Every Requested Device in a Device Tree

Devices are organized in a tree for access control. Every device except the root has exactly one parent, and the key of a device unlocks that device a...

Coding & AlgorithmsTrees
5
0
40 people solved
Aug 18, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Bank of America, Microsoft, Meta, Goldman Sachs, HTC, TCS, Zoho, JPMorgan Chase, Wipro, Accenture, Deutsche Bank

Easy
Software Engineer

Generate the First Rows of Pascal Coefficients

Problem Return the first numRows rows of Pascal's triangle. The first row is [1]. Each later row starts and ends with 1, and every interior entry is t...

Coding & AlgorithmsMath & Number TheoryDynamic Programming
3
0
17 people solved
Google logo
GoogleAmazoneBay

Also asked at eBay, Microsoft, PayPal, Meta, Oracle, ByteDance, NVIDIA, PhonePe, Karat, Wise, Bloomberg

Medium
Software Engineer

Measure the Largest All-One Square Area

Problem Find the largest square whose cells are all character '1' in a rectangular binary matrix, and return its area. Cells containing character '0' ...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
21 people solved
Spotify logo
Spotify
Hard
Software Engineer

Nearest Charger Distances in One-Dimensional Arrays

Solve the following related one-dimensional distance tasks. Indices are zero-based and distance is absolute index difference. The reported variants us...

Coding & AlgorithmsArrays & Strings
1
0
11 people solved
Oct 18, 2026
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Upstart, Meta, Infosys, LinkedIn, Bloomberg, Oracle, TCS, Apple, Goldman Sachs, NVIDIA, Visa, Accenture, TikTok, Cisco, Yandex, Walmart Labs, Squarepoint

Medium
Software Engineer

Find the Greatest Contiguous Segment Sum

Problem Find the greatest possible sum of a nonempty contiguous subarray of the integer array nums. Return that sum, not the subarray or its endpoints...

Coding & AlgorithmsDynamic ProgrammingBacktracking & Recursion
1
0
15 people solved
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Quantitative ResearcherIntern

Find the Probability That Ten Dice Sum to a Multiple of Seven

Ten dice are rolled, and a win occurs when their total is divisible by seven. How would you compute the probability of winning? Constraints and Clarif...

Statistics & MathProbabilityDynamic Programming
2
0
21 people solved
Sep 28, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Data Scientist Locked

Count Smaller Numbers with Only Zero and One in Base Four

Count positive integers below a strict upper bound whose base-4 representation contains only zeros and ones, without scanning every smaller integer.

Coding & AlgorithmsMath & Number TheoryDynamic Programming
7
0
129 people solved
Sep 9, 2026
Salesforce logo
Salesforce
Medium
Software EngineerSenior+ Locked

Fewest Add-or-Subtract Power-of-Two Steps to Reduce n to Zero

An integer problem: reduce a positive n to zero with the fewest operations, where each operation adds or subtracts a power of two. It tests reasoning ...

Coding & AlgorithmsBit ManipulationGreedy
9
0
126 people solved
Sep 22, 2026
Virtu Financial logo
Virtu Financial
Hard
Quantitative Researcher

Heaviest Plate Subset Within a Barbell Capacity, Up to 42 Plates

You have n barbell plates with weights weights[0], ..., weights[n - 1], and a barbell that can hold a total weight of at most max_capacity. Choose a s...

Coding & AlgorithmsBacktracking & Recursion
8
0
61 people solved
Sep 16, 2026
ServiceNow logo
ServiceNowGoogleOracle
Hard
Software Engineer

Count Fixed-Length Playlists That Use Every Song with a Replay Gap

Problem Create an ordered playlist of length goal from n distinct songs. Every song must appear at least once. After a song is played, at least k othe...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
22 people solved
Hudson River Trading logo
Hudson River Trading
Easy
Software EngineerNew Grad

Maximum Sum of a Filled Diamond That Fits Inside an Integer Grid

You are given an m x n grid of integers. A diamond is described by a center cell (r, c) and a radius k >= 0. It contains every cell (i, j) whose Manha...

Coding & AlgorithmsGrids & Matrices
21
0
153 people solved
Jul 30, 2026
Kikoff logo
Kikoff
Medium
Android EngineerSenior+

Expand Nested Substitutions and Detect Reachable Cycles

A template contains references to replacement strings. First explain one-level substitution. Then support replacement strings that themselves contain ...

Coding & AlgorithmsParsing & InterpretersBacktracking & Recursion
0
0
8 people solved
Oct 21, 2026
ZipHQ logo
ZipHQ
Hard
Software Engineer Locked

Find the Guaranteed Capture Time in a Turn-Based Graph Game

Solve guaranteed capture time in a finite turn-based graph pursuit game, including Jerry-first moves, staying, optimal adversarial play, and infinite ...

Coding & AlgorithmsGraphsDynamic Programming
19
0
177 people solved
Sep 17, 2026
Google logo
Google
Medium
Software Engineer

Longest Non-Decreasing Subarray After One Replacement

Given an integer array nums, return the maximum length of a contiguous non-decreasing subarray obtainable after changing at most one array element to ...

Coding & AlgorithmsArrays & StringsDynamic Programming
12
1
78 people solved
Aug 26, 2026
Uber logo
Uber
Hard
Software EngineerSenior+ Locked

Answer Repeated Shortest Increasing-Path Queries

Preprocess shortest strictly increasing grid paths for repeated target queries, with deterministic BFS ties, predecessor reconstruction, and memory tr...

Coding & AlgorithmsGrids & MatricesGraphs
12
0
79 people solved
Sep 9, 2026
Airwallex logo
Airwallex
Medium
Backend Engineer

Maximum Triangle Path Sum, Overall and Through a Required Cell

A number triangle has n rows. Row i (0-indexed) holds i + 1 integers, so triangle[i][j] exists for 0 <= j <= i. A path starts at the single value in r...

Coding & AlgorithmsDynamic Programming
1
1
32 people solved
Sep 16, 2026
Intuit logo
IntuitGoogleAmazon

Also asked at Amazon, Meta, Uber, Darwinbox, Zoho, Microsoft, Bloomberg, Flipkart, UnifyApps

Hard
Software Engineer

Minimize Initial Health along a Right-Down Dungeon Path

Problem A traveler starts in the top-left room of a rectangular dungeon and must reach the bottom-right room, moving only right or down. Entering a ro...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
2
0
28 people solved
Infosys logo
InfosysAmazonGoogle

Also asked at Google, Goldman Sachs, Microsoft, Apple, TikTok, Meta, Citadel, PubMatic, HashedIn

Hard
Software Engineer

Maximize Nonoverlapping Trades under a Transaction Cap

Problem Given chronological prices and an integer k, return the maximum profit from at most k buy/sell transactions. Hold at most one share at a time:...

Coding & AlgorithmsDynamic Programming
1
0
19 people solved
Amazon logo
AmazonMicrosoftGoogle

Also asked at Google, Bloomberg, Zoho, Meta, Coupang, Infosys, Walmart Labs, Oracle, Deshaw, Atlassian, Instacart

Hard
Software Engineer

Match a Whole String with Wildcards

Problem Return whether the pattern mask matches the whole string text under these wildcard rules: - A lowercase letter in mask matches the same letter...

Coding & AlgorithmsString AlgorithmsDynamic Programming
1
0
14 people solved
Previous1...456...26Next
Popular Categories
SQLBlind 75
Daily Quest

Sign in to earn XP for every problem you solve.

Choose your next challenge

All learning

Blind 75

75 free coding problems to build your foundations, with hints, explanations, and a progress checklist.

Arrays · Graphs · Dynamic programming

Explore Blind 75

ML System Design

Work through the decisions behind machine learning systems, from data to serving.

Data · Models · Evaluation

Explore the course

System Design Interview

Practice reasoning about architecture, scale, and the tradeoffs that shape a system.

Architecture · Scale · Tradeoffs

Explore the course

Explore by company

All companies
  • Meta
  • Google
  • Amazon
  • Apple
  • Microsoft
  • Netflix
  • Capital One
  • TikTok
  • DoorDash
  • Uber
  • Coinbase
  • Airbnb
  • LinkedIn
  • Salesforce
  • Snapchat
  • Spotify
  • PayPal
  • Lyft
  • Pinterest
  • Anthropic
  • OpenAI
  • Databricks
  • Rippling
  • Jane Street

Explore by role

  • Data Scientist
  • Software Engineer
  • Machine Learning Engineer
  • Product Manager
  • Data Engineer
  • Data Analyst
  • Frontend Engineer
  • Backend Engineer
  • Site Reliability Engineer
  • Technical Program Manager

Explore by category

  • Blind 75
  • Coding & Algorithms
  • System Design
  • Machine Learning
  • ML System Design
  • SQL & Python
  • Analytics & Experimentation
  • Behavioral & Leadership
  • Statistics & Math
  • Product / Decision Making
  • Product Design & Strategy
  • SWE Fundamentals

Popular interview guides

  • Meta SWE
  • Meta DS
  • Meta PM
  • Google SWE
  • Google DS
  • Google MLE
  • Amazon SWE
  • Amazon DS
  • Amazon DE
  • Apple SWE
  • Apple MLE
  • Microsoft SWE
  • Microsoft DS
  • TikTok SWE
  • TikTok DS
  • Uber SWE
  • Uber DS
  • DoorDash SWE
  • DoorDash DS
  • Airbnb SWE
  • Airbnb DS
  • LinkedIn SWE
  • LinkedIn DS
  • Netflix SWE
  • Coinbase SWE
  • Capital One DS
  • OpenAI SWE
  • Anthropic SWE

Popular question categories

  • Blind 75
  • Meta Coding
  • Google System Design
  • Amazon Coding
  • Meta Analytics
  • Google ML
  • Amazon System Design
  • Capital One SQL
  • TikTok ML
  • Meta SQL
  • Uber Analytics
  • DoorDash Coding
  • Google Coding
  • Netflix System Design
  • Airbnb Analytics
  • LinkedIn SQL