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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
154
Companies
980
Updated
11.05.2026
154 Questions 980 Companies11.05.2026
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 14 results
Box logo
Box
Medium
Software Engineer

Solve classic troubleshooting & algorithm tasks

Solve classic troubleshooting & algorithm tasks System failure troubleshooting: You can only SSH into the machine and the log file is huge. How would ...

Coding & AlgorithmsDebuggingConcurrency
40
0
309 people solved
Aug 4, 2025
Salesforce logo
Salesforce
Medium
Software Engineer

Implement 64-bit modular exponentiation safely

Implement a function to compute (a^b) mod m where 0 ≤ a,b < 2^61−1 and 1 ≤ m < 2^61−1 using only 64-bit operations without overflow. Provide implement...

Coding & AlgorithmsMath & Number TheoryBit Manipulation
16
0
141 people solved
Jul 31, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Compute minimum-cost service cover

You are given: ( 1) a list of rental service packages, where each package contains a set of services (strings) and a non-negative price, e.g., [(["wif...

Coding & AlgorithmsDynamic Programming
31
0
243 people solved
Jul 26, 2025
Salesforce logo
Salesforce
Medium
Software Engineer

Minimize steps to reduce integer

Given a positive integer n (1 <= n <= 2^61 - 1), in one step you may replace n with n/2 if n is even, or with n+1 or n-1 if n is odd. Return the minim...

Coding & AlgorithmsGreedyBit Manipulation
15
0
106 people solved
Sep 6, 2025
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Minimize operations to reduce integer to zero

This question evaluates algorithmic problem-solving and integer-manipulation skills, specifically assessing the ability to reason about operation coun...

Coding & AlgorithmsGreedyBit Manipulation
13
0
141 people solved
Feb 11, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Solve two array and string problems

You will solve two independent coding tasks. Problem 1: Generate All Subsets of a Set You are given an integer array nums containing n distinct elemen...

Coding & AlgorithmsBacktracking & RecursionStacks & Queues
18
0
216 people solved
Oct 16, 2025
Snapchat logo
Snapchat
Hard
Software Engineer Locked

Check whether an integer is a power of two

This question evaluates proficiency in bit-level reasoning and integer arithmetic, specifically understanding binary representations and the propertie...

Coding & AlgorithmsBit Manipulation
8
0
87 people solved
Jan 2, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Implement IPv4 and CIDR iterators

This question evaluates understanding of IPv4 addressing and CIDR notation, along with competency in binary/bitwise arithmetic, iterator construction,...

Coding & AlgorithmsData Structure DesignBit Manipulation
18
0
195 people solved
Jan 10, 2025
Meta logo
Meta
Medium
Software Engineer Locked

Extend BFS maze solver with keys and arrows

This question evaluates mastery of breadth-first search, state-space modeling for grid-based traversal, and handling augmented states like keys and on...

Coding & AlgorithmsGrids & MatricesGraphs
23
0
168 people solved
Feb 12, 2026
Tesla logo
Tesla
Medium
Software Engineer

Verify permutation in-place and implement fast power

1) Given an integer list A of length n, determine whether A is a permutation of [0, 1, ..., n-1]. Do it in-place with O( 1) extra space (no auxiliary ...

Coding & AlgorithmsArrays & StringsMath & Number Theory
8
0
105 people solved
Sep 6, 2025
SoFi logo
SoFi
Easy
Software Engineer Locked

Count numbers with same popcount up to all-ones bound

This question evaluates skill in bit manipulation and combinatorial counting over binary representations in the Coding & Algorithms domain, specifical...

Coding & AlgorithmsBit ManipulationMath & Number Theory
21
0
144 people solved
Jan 7, 2026
Amazon logo
Amazon
Hard
Software Engineer Locked

Maximize protected population and bitwise AND

This paired problem evaluates array manipulation and resource-allocation reasoning for maximizing covered population in a constrained-movement scenari...

Coding & AlgorithmsBit Manipulation
18
0
196 people solved
Feb 12, 2026
Uber logo
Uber
Hard
Software Engineer Locked

Solve jump maximization and palindromic path queries

This pair of problems evaluates algorithmic problem-solving skills: the first assesses array-based path optimization and stateful score maximization u...

Coding & AlgorithmsDynamic ProgrammingTrees
11
0
99 people solved
Jan 8, 2026
Optiver logo
Optiver
Medium
Quantitative Trader

Optimize switching puzzle solution

Consider a switching puzzle on an m×n grid of lights where toggling a cell flips its state and that of its orthogonal neighbors (Lights Out variant). ...

Coding & AlgorithmsMath & Number Theory
11
0
206 people solved
Sep 6, 2025
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