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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
404
Companies
980
Updated
11.12.2026
404 Questions 980 Companies11.12.2026
PLTCHK testimonial
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_ testimonial
_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"

Chris testimonial
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 testimonial
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."

Jake testimonial
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 testimonial
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."

Carlos testimonial
CarlosFull Stack, Shopify

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

boba.tea.vibes testimonial
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."

Andy testimonial
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 testimonial
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."

Shruti testimonial
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 testimonial
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."

Bianca testimonial
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 testimonial
tambrahm007

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

toa testimonial
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 testimonial
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_ testimonial
_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"

Chris testimonial
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 testimonial
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."

Jake testimonial
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 testimonial
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."

Carlos testimonial
CarlosFull Stack, Shopify

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

boba.tea.vibes testimonial
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."

Andy testimonial
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 testimonial
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."

Shruti testimonial
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 testimonial
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."

Bianca testimonial
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 testimonial
tambrahm007

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

toa testimonial
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
Snowflake logo
Snowflake
Easy
Software Engineer Locked

Schedule prerequisite classes with retakes

This question evaluates competency in graph algorithms, dependency resolution, stateful scheduling, and robust error handling within the Coding & Algo...

Coding & AlgorithmsGraphs
19
0
157 people solved
Mar 1, 2026
Tesla logo
Tesla
Medium
Software Engineer

Solve classic array, graph, and parsing problems

Implement and analyze solutions to the following independent tasks: 1) Expression evaluator: Given a string s of digits, '+', '-', '*', '/', and space...

Coding & AlgorithmsArrays & StringsParsing & Interpreters
19
0
150 people solved
Aug 14, 2025
Google logo
Google
Medium
Software Engineer

Design log management with auto-deletion

Design log management with auto-deletion Design a Bounded Log Management System with O(1) Victim Selection Context You are designing an in-memory log ...

System DesignData Structure DesignHeaps & Priority Queues
10
0
132 people solved
Aug 4, 2025
Two Sigma logo
Two Sigma
Medium
Machine Learning Engineer

Solve tree partition and IPO allocation

1) Tree partitioning for minimum difference: Given a rooted tree as an array parent of length n (parent[i] gives the parent of node i, and parent[root...

Coding & AlgorithmsTreesTrading Systems
11
0
155 people solved
Sep 6, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Solve build ordering and expression evaluation

Part A — Dependency ordering: You are given an integer n (0 ≤ n ≤ 200000) representing tasks labeled 0..n-1 and a list of prerequisite pairs [a, b] me...

Coding & AlgorithmsGraphsParsing & Interpreters
12
0
128 people solved
Sep 6, 2025
Meta logo
Meta
Medium
Software EngineerSenior+

Evaluate an Integer Arithmetic Expression With Precedence and Parentheses

Given a string s that holds an arithmetic expression, evaluate it and return its integer value. The expression is built from non-negative integer lite...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
18 people solved
Dec 31, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Find shortest path in a maze grid

This question evaluates proficiency in graph traversal and shortest-path reasoning on grid-based data structures, testing skills in pathfinding, state...

Coding & AlgorithmsGrids & Matrices
11
0
154 people solved
Jan 21, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Answer multi-round grid and data-structure questions

You are given several independent interview-style coding questions. 1) Find first/last occurrence in sorted array (+ dynamic updates follow-ups) Given...

Coding & AlgorithmsBinary SearchData Structure Design
26
0
195 people solved
Oct 30, 2025
Apple logo
Apple
Hard
Software Engineer Locked

Implement a lazy inorder traversal iterator

This question evaluates understanding of binary tree traversal and iterator design, specifically the implementation of a lazy inorder iterator under t...

Coding & AlgorithmsTreesStacks & Queues
10
0
105 people solved
Feb 11, 2026
Google logo
Google
Easy
Software Engineer Locked

Design a waitlist manager

This question evaluates object-oriented design and data-structure competency—modeling a FIFO waitlist API, managing unique party identifiers and edge ...

Software Engineering FundamentalsData Structure DesignStacks & Queues
14
0
121 people solved
Mar 1, 2026
Apple logo
Apple
Medium
Software Engineer

Design a rolling five-minute hit counter

Design an in-memory hit counter that supports: ( 1) recordHit(timestamp) to log an event, and ( 2) getCountLast5Minutes(now) to return the number of e...

Coding & AlgorithmsData Structure DesignTwo Pointers & Sliding Window
11
0
146 people solved
Sep 6, 2025
Grammarly logo
Grammarly
Easy
Software Engineer

Implement string reduction and time map

In a coding interview, you are asked to solve two algorithm problems. 1. String reduction with adjacent duplicates - Basic version: Given a string ...

Coding & AlgorithmsStacks & QueuesData Structure Design
22
1
182 people solved
Nov 29, 2025
Uber logo
Uber
Medium
Software EngineerSenior+ Locked

Implement stream queries and bounded-difference subarrays

This question evaluates proficiency in data structures and algorithmic problem-solving, covering streaming uniqueness tracking (first-non-repeated ele...

Coding & AlgorithmsStacks & QueuesTwo Pointers & Sliding Window
13
0
87 people solved
May 8, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Implement transactional key–value store

Design and implement an in-memory key–value store that supports transactions and nested transactional blocks. Your system must process a stream of com...

Coding & AlgorithmsData Structure DesignTransactions & Isolation
12
1
178 people solved
Sep 6, 2025
Uber logo
Uber
Medium
Software Engineer

Compute exclusive execution time from logs

Problem You are given execution logs from a single-threaded CPU that runs n functions labeled 0..n-1. The CPU can run only one function at a time. A f...

Coding & AlgorithmsStacks & Queues
11
0
113 people solved
Nov 27, 2025
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Implement exponentiation and fill grid distances

This question evaluates algorithmic problem-solving skills in the Coding & Algorithms domain, specifically numeric algorithms for fast exponentiation ...

Coding & AlgorithmsMath & Number TheoryGrids & Matrices
5
0
108 people solved
Jan 8, 2026
Google logo
Google
Medium
Software Engineer Locked

Decompress encoded string with nested repeats

This question evaluates string parsing and manipulation skills, particularly handling nested repetition encodings and reasoning about output growth, a...

Coding & AlgorithmsStacks & Queues
33
0
240 people solved
Feb 11, 2026
DoorDash logo
DoorDash
Medium
Software EngineerSenior+

Solve BFS grid delivery routing

You are given an m×n grid representing a city: 'S' are DashMart stores, 'H' are homes, '.' are roads, and '#' are obstacles. Movement is allowed in fo...

Coding & AlgorithmsGrids & MatricesStacks & Queues
15
0
131 people solved
Jul 31, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Evaluate arithmetic expression with variables

Implement an expression evaluator for a string expr containing non-negative integers, variables (alphabetic names), operators +, -, , /, parentheses '...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
8
0
140 people solved
Aug 14, 2025
Optiver logo
Optiver
Medium
Software Engineer

Design an object-oriented queue and compare implementations

Design an object-oriented queue and compare implementations You are asked to design an object-oriented Queue abstraction and discuss how it can be imp...

Software Engineering FundamentalsData Structure Design
51
0
430 people solved
Jul 19, 2025
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