Interview Questions

Practice the exact questions companies are asking right now.

Questions

9.8k

Companies

511

Updated

08.16.2026

9.8k Questions 511 Companies08.16.2026

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

Disney

Medium

Data Engineer

Design a Pipeline to Process a Billion Clickstream Events Per Day

You are designing the data infrastructure for a large consumer web/mobile product. The product emits a clickstream: every page view, tap, scroll, and ...

Find Maximum Rectangle in Bar Chart

Given an array heights of n non-negative integers, where each value represents the height of a vertical bar in a bar chart and every bar has width 1, ...

Count connected islands using Union-Find

You are given an m x n grid of characters where '1' represents land and '0' represents water. An island is a group of horizontally or vertically adjac...

Data Scientist Locked

How would you evaluate pixel-issue notifications?

This question evaluates a data scientist's skills in experimentation design, metric framework development, causal inference, and measurement-aware ana...

Analytics & Experimentation

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

Backend EngineerNew Grad

Implement Notification Rate Limiter

Implement should_send_notifications(user_id, timestamp) -> bool. You are given two mappings: - each user_id belongs to exactly one team_id - each team...

Machine Learning Engineer

Sample index from weighted probability distribution

Given an array weights[0..M-1] representing a discrete distribution over M outcomes, implement a function sampleIndex(weights) that returns an index i...

Data Scientist Locked

How would you measure and experiment on harmful content?

This question evaluates a data scientist's competency in measuring and experimenting on harmful user-generated content, focusing on severity quantific...

Analytics & Experimentation

Explain Pandas and SQL Basics

You are interviewing for a Data Engineer internship. Answer the following short data-manipulation questions: 1. In pandas, what is the difference betw...

Data Manipulation (SQL/Python)

Fetch paginated data from two APIs

Write a function get_enriched_records(api_a_url, api_b_url). api_a_url returns paginated JSON in the form: `json { "data": [ {"id": 1, "ref_id":...

Data Scientist Locked

Convert multi-currency revenue to USD totals

This question evaluates a candidate's competency in converting multi-currency revenue into USD totals by aligning event dates with FX rates, handling ...

Data Manipulation (SQL/Python)

Analytics Engineer Locked

Compute daily active ads

This question evaluates proficiency in data manipulation and analytics engineering, focusing on time-based event aggregation, status-based filtering, ...

Data Manipulation (SQL/Python)

Compute variance of a list in Python

Task Given a Python list of numbers (ints/floats), write code to compute its variance. Requirements - Input: nums: list[float] (length $n\ge 1$) - C...

Find Lowest Prices for Highly Rated Categories

You are given two tables containing product catalog information and purchase records. Tables products | Column | Type | Description | |---|---:|---| |...

Data Manipulation (SQL/Python)

Software EngineerNew Grad Locked

Solve classic coding interview problems

These problems evaluate algorithmic problem-solving skills including dynamic programming and combinatorics for the egg-dropping scenario, array manipu...

Data Scientist Locked

Evaluate a new-listing notification feature

This question evaluates product analytics, causal inference, experimentation design, metric definition, and business-impact estimation competencies fo...

Analytics & Experimentation

Count Similar Photo Groups

You are given n photos labeled 0 to n - 1 and an n x n binary matrix isSimilar. - isSimilar[i][j] = 1 means photo i and photo j are directly similar. ...

Implement an Alert Execution Engine

You are given an alert client API that provides alert configurations, metric query execution, and notification methods. Implement an alert execution e...

Machine Learning Engineer

Implement Kubernetes Service Dependency Queries

You are given an in-memory inventory of Kubernetes-like services. Each service has the following fields: `text Service { id: string // ...

Merge overlapping corrections

Implement correctionMerge(corrections). You are given a list of text-correction spans. Each correction applies to an inclusive interval [start, end] a...

Coding & Algorithms

107 people solved

Feb 13, 2026

Interview Questions

Design a Pipeline to Process a Billion Clickstream Events Per Day

Find Maximum Rectangle in Bar Chart

Count connected islands using Union-Find

How would you evaluate pixel-issue notifications?

Derive insights and improve complaint resolutions

Implement Notification Rate Limiter

Sample index from weighted probability distribution

How would you measure and experiment on harmful content?

Explain Pandas and SQL Basics

Fetch paginated data from two APIs

Convert multi-currency revenue to USD totals

Compute daily active ads

Compute variance of a list in Python

Find Lowest Prices for Highly Rated Categories

Solve classic coding interview problems

Evaluate a new-listing notification feature

Count Similar Photo Groups

Implement an Alert Execution Engine

Implement Kubernetes Service Dependency Queries

Merge overlapping corrections

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