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

Uber

Hard

Software Engineer Locked

Find robots matching obstacle-distance signature

This question evaluates spatial reasoning on 2D grids, the ability to compute distance signatures to nearest obstacles, and careful handling of bounda...

Software Engineer Locked

Implement an IPv4 Iterator

This question evaluates proficiency in IPv4 address representation and arithmetic, CIDR parsing, iterator API design for forward and backward traversa...

Compute maze score using shortest path

You are given a grid-based maze game. - The maze is an R x C grid of characters: - '#' = wall (cannot pass) - '.' = empty cell - 'S' = current p...

Software Engineer Locked

Validate a 9×9 grid under constraints

This question evaluates the ability to perform constraint validation on a fixed-size 9×9 grid, testing skills in matrix/array handling, duplicate dete...

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...

Data Scientist Locked

Evaluate business value of lower ETA

This question evaluates experimental design, causal inference, metric definition, statistical interpretation, and marketplace analytics in the context...

Analytics & Experimentation

Software Engineer Locked

Implement wildcard querySelector to extract URL

This question evaluates implementation skills for a simplified selector engine, DOM traversal and manipulation, wildcard attribute pattern matching, a...

Coding & Algorithms

341 people solved

Jan 18, 2026

Compute dot product of sparse vectors

This question evaluates proficiency with sparse data representations and algorithmic efficiency by requiring the dot product to be computed from lists...

Software Engineer Locked

Clean up all Docker resources

This question evaluates proficiency in Docker resource management, covering containers, images, and volumes and the ability to perform a complete envi...

Software Engineering Fundamentals

Implement two string utility functions

Implement the following Python functions: 1. number_of_character(string, char) - Return the number of times character char appears in string. - ...

Estimate free-trial conversion probability

Context A product offers a free trial. You are asked: “What is the probability of conversion for a group of people who started a free trial?” Data (as...

Analytics & Experimentation

Compute shipping cost with tiered pricing

This question evaluates the ability to implement tiered billing and aggregate shipping costs across order line items, testing competencies in algorith...

Coding & Algorithms

71 people solved

Jan 17, 2026

Compute ads revenue by geography in SQL

You have ad delivery logs for a shop-ads system. Tables ad_impressions - impression_id STRING (PK) - ts TIMESTAMP (UTC) - user_id STRING - shop_id STR...

Data Manipulation (SQL/Python)

Data Scientist Locked

Implement nested template string substitution

This question evaluates understanding of string processing, dependency resolution, recursive expansion, cycle detection, and efficiency techniques suc...

Answer ancestor-walk queries on a rooted tree

Problem (Tree / Parent Array Queries) You are given a rooted tree with n nodes labeled 1..n, represented by a parent array par[1..n]: - par[i] is the ...

Data Scientist Locked

Merge overlapping intervals per group in pandas

This question evaluates proficiency in time-series data manipulation and interval reasoning using pandas, including grouping, datetime handling, and i...

Data Manipulation (SQL/Python)

Present pirated-usage findings to a PM

You computed (1) monthly % of shops using pirated themes and (2) monthly and cumulative estimated revenue loss from pirated themes. Explain how you wo...

Behavioral & Leadership

Software EngineerSenior+ Locked

Generate all permutations of an array

This question evaluates understanding of permutation generation, recursion and backtracking techniques, along with skills in state-space exploration a...

Coding & Algorithms

105 people solved

Jan 16, 2026

Implement cd and merge intervals

This question evaluates proficiency in filesystem path normalization (string parsing, tokenization, and edge-case handling) and interval-merging algor...

Implement a Maximum-Tracking Stack

Design a stack-like data structure that supports the following operations efficiently: - push(x): Push integer x onto the stack. - pop(): Remove and r...

Coding & Algorithms

19 people solved

Jan 15, 2026

Interview Questions

Find robots matching obstacle-distance signature

Implement an IPv4 Iterator

Compute maze score using shortest path

Validate a 9×9 grid under constraints

Design a 25,000-CSV ETL pipeline

Evaluate business value of lower ETA

Implement wildcard querySelector to extract URL

Compute dot product of sparse vectors

Clean up all Docker resources

Implement two string utility functions

Estimate free-trial conversion probability

Compute shipping cost with tiered pricing

Compute ads revenue by geography in SQL

Implement nested template string substitution

Answer ancestor-walk queries on a rooted tree

Merge overlapping intervals per group in pandas

Present pirated-usage findings to a PM

Generate all permutations of an array

Implement cd and merge intervals

Implement a Maximum-Tracking Stack

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