Interview Questions

Practice the exact questions companies are asking right now.

Questions

10.0k

Companies

520

Updated

08.21.2026

10.0k Questions 520 Companies08.21.2026

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_

"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"

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

"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."

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

"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."

CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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."

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

"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."

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

"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."

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

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

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

_The_TaNk_

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

"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."

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

CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

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."

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

"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."

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

"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."

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

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

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

Role

Compute High-Call Usage Rates

You are given two tables for a voice-calling product: users - user_id BIGINT - country_code STRING calls - call_id BIGINT - caller_id BIGINT - recipie...

Data Manipulation (SQL/Python)

Evaluate an arithmetic expression

Write a function that evaluates a mathematical expression given as a string. Requirements: - Supports non-negative integers and whitespace. - Supports...

Return all file paths via DFS

You are given an in-memory representation of a file system as a tree. Each node has: - name (string) - isFile (boolean) - children (list of nodes, emp...

Demonstrate task switching and memory strategies

Task-Switching and Working-Memory Exercise Context You will simulate a classic cognitive control task that requires rapid switching between two simple...

Compute expectations, conditionals, odds, and distributions

Fast Probability and Statistics (No Calculator) Context: Answer quickly with mental math and concise reasoning. Show set-up and any helpful shortcuts....

Machine Learning Engineer

Describe a challenging project you led

Behavioral Prompt: A Challenging Project You Led or Contributed To Context: Technical screen for a Machine Learning Engineer role. The interviewer ask...

Behavioral & Leadership

Machine Learning Engineer

Compute currency conversion via graph search

Given a list of currency pairs, e.g., [('USD','CAD'), ('CAD','EUR'), ...], and a parallel list of conversion ratios [1.1, 1.2, ...] where ratio r mean...

Implement price-based order matcher

Design and implement a price-based order matcher for unit-sized orders. You are given an array orders where each element is [type, price]: type = 1 de...

Compute permutations with repeated letters

Counting Strings with Repeated Characters Problem Given two nonnegative integers m and n, how many distinct strings can be formed that contain exactly...

Statistics & Math

108 people solved

Aug 13, 2025

Implement tree column grouping and minimal parentheses fixes

Part A — Binary tree column grouping: Given the root of a binary tree, group node values by their vertical columns from leftmost to rightmost using x-...

Machine Learning Engineer

Describe pair programming communication approach

Pair Programming in a Timed Interview (ML Engineer) Context: You are in a timed, onsite pair-programming interview for a Machine Learning Engineer rol...

Behavioral & Leadership

Review a JavaScript flatten PR

Live PR Review: JavaScript flatten using recursion You are reviewing a pull request that introduces a flatten utility. Intended behavior Implement fla...

Software Engineering Fundamentals

Enable secure offline reservation caching

System Design: Offline Caching for Reservations (PWA) Design a web application that supports offline access to reservation information. The app is a p...

Reduce frontend network requests efficiently

Reduce Redundant Frontend Requests for Availability and Pricing Context You are designing the web client and APIs for a bookings marketplace that disp...

Design a subscription email scheduler with changes and renewals

Implement an email notification scheduler for subscription accounts. Inputs: - send_schedule: a mapping whose keys include: • "start": label to send...

Implement React check-in/out month dropdowns

React UI Enhancement: Check-in/Check-out Month Dropdowns Context You are working on a hotel reservation form in a React codebase. The form needs two n...

Software Engineering Fundamentals

Count sports by calendar quarter in SQL

You are given a table games(date DATE, team_name TEXT, sport_name TEXT). Write a SQL query that returns, for each year and calendar quarter (Q1–Q 4), ...

Data Manipulation (SQL/Python)

Solve sliding window, graph top-k, and greedy tasks

You have three coding tasks. Task 1 — Sliding window on strings: Given a string s and an integer k, find one longest substring of s that contains at m...

Implement text formatter and sum subarray products

1) Text formatter (LC-inspired variant): Given an array of words and an integer maxWidth W >= 1, break the words into lines so that the total length o...

Describe Product and Team Collaboration

Behavioral interviews focused on: - how you collaborate with product managers, - how you communicate and align across teams, - how you handle disagree...

Behavioral & Leadership

29 people solved

Mar 3, 2026

Interview Questions

Compute High-Call Usage Rates

Evaluate an arithmetic expression

Return all file paths via DFS

Demonstrate task switching and memory strategies

Compute expectations, conditionals, odds, and distributions

Describe a challenging project you led

Compute currency conversion via graph search

Implement price-based order matcher

Compute permutations with repeated letters

Implement tree column grouping and minimal parentheses fixes

Describe pair programming communication approach

Review a JavaScript flatten PR

Enable secure offline reservation caching

Reduce frontend network requests efficiently

Design a subscription email scheduler with changes and renewals

Implement React check-in/out month dropdowns

Count sports by calendar quarter in SQL

Solve sliding window, graph top-k, and greedy tasks

Implement text formatter and sum subarray products

Describe Product and Team Collaboration

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