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."
Showing 20 results
Role
Hard
Software Engineer LockedDesign Food Delivery Cart
This question evaluates a candidate's expertise in backend system design for transactional applications, covering competencies such as API design, dat...
System Design
11
0
76 people solved
Jan 26, 2026
Easy
Software Engineer AI LockedFind Feature Activation Order
This question evaluates graph-algorithms and dependency-resolution skills, including reasoning about prerequisite relationships, ordering constraints,...
Coding & Algorithms
9
0
63 people solved
Jan 26, 2026
Easy
Software Engineer LockedSolve four OA coding problems
This set of four problems evaluates core algorithmic competencies including array manipulation and counting in sorted arrays, resource-constrained opt...
Coding & Algorithms
2
0
51 people solved
Jan 26, 2026
Medium
Software EngineerDesign pickup point planning for ride-hailing
Design an algorithm and high-level system for recommending a pickup point in a ride-hailing app. A passenger requests a ride from an approximate city ...
System Design
8
0
69 people solved
May 28, 2025
Medium
Software EngineerDetermine Whether All Courses Can Be Completed
Problem There are numCourses courses numbered 0 through numCourses - 1. Each prerequisite pair [course, prerequisite] means the prerequisite must be c...
Coding & Algorithms
0
0
1 people solved
Jan 25, 2026
Medium
Software EngineerMerge Overlapping Time Windows
Problem Merge a collection of time windows so that the output contains sorted, non-overlapping half-open intervals. A window [start, end) includes sta...
Coding & Algorithms
0
0
1 people solved
Jan 25, 2026
Medium
Software EngineerChoose a Safe Polling Strategy for Delayed Records
Choose a Safe Polling Strategy for Delayed Records Data store A emits one record every 30 seconds. A is a black box. Each record eventually appears in...
Software Engineering Fundamentals
1
0
11 people solved
Jan 25, 2026
Medium
Software EngineerInternFind Top Hashtags
You are given two arrays of length n: - tweets[i]: the content of the i-th tweet as a string - timestamps[i]: the publish time of the i-th tweet as an...
Coding & Algorithms
1
0
19 people solved
Jan 25, 2026
Medium
Software EngineerDescribe surprising project learnings
Discuss a substantial project you worked on in depth. What was the most surprising finding during the project? What outcomes differed from your origin...
Behavioral & Leadership
6
0
58 people solved
Jan 25, 2026
Medium
Backend EngineerSenior+Explain reliability and runtime fundamentals
You may be asked several short technical-fundamentals questions such as: - In a Kafka-based batch consumer, how would you prevent a batch from being p...
Software Engineering Fundamentals
11
0
84 people solved
Jan 25, 2026
Medium
Software EngineerImplement a Timed Task Scheduler
Implement a runnable task scheduler. The scheduler should allow clients to add new tasks at any time. Each task has: - A callback or function to execu...
Coding & Algorithms
0
0
7 people solved
Jan 24, 2026
Medium
Software EngineerBuild a Tic-Tac-Toe App
Implement a simple Tic-Tac-Toe mobile app that can be completed in a 45-minute coding interview. Requirements: - Display a 3x3 board. - Support two lo...
Coding & Algorithms
0
0
11 people solved
Jan 24, 2026
Medium
Backend EngineerCompare Strings With Deletions
You are given two strings s and t. Each string may contain lowercase letters and the special character #. A # deletes the closest non-deleted characte...
Coding & Algorithms
1
0
24 people solved
Jan 23, 2026
Medium
Data ScientistDesign Basketball Shot Outcome Prediction
Design a machine learning system that predicts whether a basketball shot will be made or missed using only information available at the moment the pla...
ML System Design
4
0
41 people solved
Jan 22, 2026
Medium
Data ScientistSenior+ LockedHow would you build UberEats ranking?
This question evaluates machine learning and recommender-systems competencies for ranking in a food delivery marketplace, covering problem formulation...
Machine Learning
8
0
56 people solved
Jan 22, 2026
Medium
Data ScientistSenior+ LockedHow would you evaluate UberEats growth?
This question evaluates product analytics, experimentation design, and causal inference competencies in the context of a food-delivery marketplace, em...
Analytics & Experimentation
6
0
53 people solved
Jan 22, 2026
Medium
Site Reliability Engineer LockedGenerate combinations and permutations
This question evaluates a candidate's ability to implement combinatorial generation of combinations and permutations using distinct elements, testing ...
Coding & Algorithms
2
0
30 people solved
Jan 22, 2026
Hard
Data Scientist LockedHandle repeated churn in SQL
This question evaluates proficiency in time-based data manipulation and analytics, including handling repeated churn and resubscription, interval logi...
Data Manipulation (SQL/Python)
14
0
118 people solved
Jan 22, 2026
Hard
Machine Learning Engineer LockedImplement local maxima, bagging, and k-means
This question evaluates skills in algorithm implementation and machine learning fundamentals—specifically streaming local maxima detection, bootstrap ...
Coding & Algorithms
6
0
82 people solved
Jan 22, 2026
Medium
Software EngineerIntern LockedMaximize minimum value after k decrements
This question evaluates array-based optimization skills, resource-allocation reasoning under a fixed decrement budget, and algorithmic complexity anal...
Coding & Algorithms
2
0
32 people solved
Jan 22, 2026