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

Snapchat

Hard

Software Engineer

Design product co-occurrence analytics API

Design RESTful APIs for Co‑Purchase Analytics Context You are designing backend APIs to power a "related products" module based on co‑purchase behavio...

System Design

68 people solved

Sep 6, 2025

Count subarrays summing to target

Given an integer array nums and an integer target T, return the number of contiguous subarrays whose sum equals T. Provide an algorithm that runs in l...

Design a minimal ChatGPT with presets

System Design: Minimal ChatGPT-like Service With Reusable Presets Context Design a multi-tenant conversational AI service that supports reusable prese...

Implement rotation, LRU cache, streaming median, cycle detection

Complete the following coding tasks. For each, provide code, justify time/space complexity, and describe edge cases: 1) Image rotation: Given an n×n i...

Implement prioritized refund allocation engine

Implement a refund allocation function that takes: (a) a list of payments, each with a unique paymentId, method ∈ {CREDIT, CREDIT_CARD, PAYPAL}, ISO-8...

Design a satellite propagation simulator

Question Implement a SatelliteNetwork class that simulates message propagation over an undirected satellite graph. The class consumes a stream of inst...

Describe a failure and learning

Behavioral Question: Learning from Failure (Software Engineering) Describe a project where you failed or missed key objectives: 1. What happened? Prov...

Behavioral & Leadership

Implement multi-part cost calculator

You are given a price catalog and a list of orders. Implement the following in any language (Python examples acceptable): Inputs - price_catalog: mapp...

Decide target via subsequence plus/multiply expression

Question Given a sequence of positive 32-bit integers A and an integer target, determine whether there exists a subsequence of A (preserving order, us...

Implement Luhn-based card validation and inference

Question Implement a set of utilities for credit-card validation and inference using the Luhn checksum algorithm and standard brand patterns. Brand pa...

Calculate trapped water between elevation bars

Given an array of non-negative integers representing the heights of unit-width vertical bars, compute the total water retained after rainfall. Start b...

Generate split-stay pairs efficiently

Given N Airbnb listings, each with available days as integers, and an inclusive requested date range [L, R], return all ordered pairs (X, Y) of distin...

Generate user notifications from schedules

Given a schedule template format and user profile data (timezone, locale, delivery preferences), implement a program that generates a user notificatio...

Data Manipulation (SQL/Python)

9 people solved

Sep 6, 2025

Hard

Data Scientist Locked

Measure Relevant Feed Success

This question evaluates a data scientist's competency in product analytics and experimentation, specifically metric definition, A/B test design, inter...

Analytics & Experimentation

Train with imbalanced sampled data

You are training a binary classifier on a very large dataset where the positive class is rare. Because the full dataset is too large to train on direc...

Find largest subset sharing a common digit

You are given a list of two-digit integers (each from 10 to 99, inclusive). You want to select as many numbers as possible in one selection such that:...

Fill Missing Time-Series Values with Linear Interpolation (Duplicate Timestamps Allowed)

Fill Missing Time-Series Values with Linear Interpolation (Duplicate Timestamps Allowed) You are given readings from a single sensor as a list of reco...

Why this role and team scope?

In a recruiter or early-screen conversation for a Product Manager role on Robinhood's crypto team, including wallet and B2B2C on-ramp work, answer: 1....

Behavioral & Leadership

52 people solved

May 13, 2025

Design a newsfeed dislike model

This question evaluates a candidate's ability to design and operationalize a machine learning model that predicts the probability of a user disliking ...

Design a 25,000-CSV ETL pipeline

This question evaluates data engineering and ETL pipeline design skills, specifically competencies in automation, schema validation, type standardizat...

Coding & Algorithms

60 people solved

Jan 18, 2026

Interview Questions

Design product co-occurrence analytics API

Count subarrays summing to target

Design a minimal ChatGPT with presets

Implement rotation, LRU cache, streaming median, cycle detection

Implement prioritized refund allocation engine

Design a satellite propagation simulator

Describe a failure and learning

Implement multi-part cost calculator

Decide target via subsequence plus/multiply expression

Implement Luhn-based card validation and inference

Calculate trapped water between elevation bars

Generate split-stay pairs efficiently

Generate user notifications from schedules

Measure Relevant Feed Success

Train with imbalanced sampled data

Find largest subset sharing a common digit

Fill Missing Time-Series Values with Linear Interpolation (Duplicate Timestamps Allowed)

Why this role and team scope?

Design a newsfeed dislike model

Design a 25,000-CSV ETL pipeline

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