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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
333
Companies
980
Updated
11.06.2026
333 Questions 980 Companies11.06.2026
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
DoorDash logo
DoorDash
Medium
Software Engineer

Fix a Round-Robin Load Balancer, Then Implement Consistent Hashing

In a debugging-format onsite round, you work on the component that decides which backend server handles each incoming request. The round has two piece...

Software Engineering FundamentalsPartitioning & Consistent HashingConcurrency
5
0
42 people solved
Jan 18, 2026
Amazon logo
Amazon
Hard
Software Engineer

Most Fixed Points After Array Deletions

Most Fixed Points After Array Deletions You are given an integer array nums. In an array indexed from 0, an element is a fixed point when its value eq...

Coding & AlgorithmsDynamic ProgrammingBinary Search
0
0
9 people solved
LinkedIn logo
LinkedIn
Medium
Machine Learning Engineer Locked

Sample index from probability distribution

This question evaluates proficiency in randomized algorithms and probability-based sampling, along with algorithmic preprocessing and data-structure d...

Coding & AlgorithmsMath & Number TheoryBinary Search
35
0
250 people solved
Feb 11, 2026
Atlassian logo
Atlassian
Medium
Data Scientist

Minimize max L1 radius with k centers in 1D

You are given an array A of n integers (values may be negative and may repeat) and an integer k (1 ≤ k ≤ n). Place k cluster centers anywhere on the r...

Machine LearningBinary SearchGreedy
12
0
133 people solved
Oct 13, 2025
Uber logo
Uber
Medium
Software Engineer

Sort by squares and find k-th smallest

Given a nondecreasing sorted array of integers nums, do the following: 1) Reorder the original elements by increasing square value (equivalently, by a...

Coding & AlgorithmsTwo Pointers & Sliding WindowBinary Search
13
0
103 people solved
Sep 6, 2025
Google logo
Google
Medium
Software Engineer Locked

Find where to cut cake into equal areas

This question evaluates geometric area computation, handling of piecewise-constant profiles formed by adjacent rectangles, and attention to numerical ...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
16
0
146 people solved
Jan 6, 2026
Uber logo
Uber
Medium
Software Engineer

Solve BFS and grid tasks

The coding rounds included several algorithmic problems: 1. Threshold search with binary search: You are given floors 1..n and an API canOperate(floor...

Coding & AlgorithmsGraphsBinary Search
17
0
132 people solved
Feb 22, 2026
Amazon logo
AmazonBloomberg
Hard
Software Engineer

Best Recovery Score Within a Path Budget

Best Recovery Score Within a Path Budget You are given a directed acyclic graph with nodes 0 through n - 1. Each entry [u, v, cost] in edges is a dire...

Coding & AlgorithmsGraphsBinary Search
0
0
8 people solved
Airbnb logo
Airbnb
Medium
Software Engineer

Find minimal property set in neighborhood

You are given a list of properties, each Property(id: int, neighborhood: string, capacity: int). Given a targetNeighborhood (string) and groupSize (in...

Coding & AlgorithmsGreedy
44
0
394 people solved
Sep 6, 2025
Google logo
Google
Hard
Software Engineer Locked

Find conflicting pair using black-box run()

This question evaluates algorithm design and query-complexity reasoning, focusing on efficient search strategies for identifying an interacting pair v...

Coding & AlgorithmsBinary SearchDebugging
19
1
170 people solved
Jan 15, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Highest Total Profit from Non-Overlapping Jobs When Endpoints May Touch

Each job has a start time, an end time and a profit. Choose jobs that do not overlap in time so that the total profit is as large as possible. Functio...

Coding & AlgorithmsDynamic ProgrammingIntervals & Scheduling
3
0
23 people solved
Apr 28, 2026
Meta logo
Meta
Medium
Machine Learning Engineer Locked

Implement weighted random sampling with preprocessing

This question evaluates algorithm design and probabilistic reasoning for weighted random sampling, including data-structure preprocessing, time-space ...

Coding & AlgorithmsMath & Number TheoryBinary Search
9
0
113 people solved
Feb 12, 2026
Citadel logo
Citadel
Medium
Software Engineer

Solve two DS&A optimization problems

Problem 1 — Maximize alternating-sum over four array partitions: Given an integer array arr[1..n] (1-based). Choose indices a, b, c with 1 ≤ a ≤ b ≤ c...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
15
0
230 people solved
Jul 16, 2025
Microsoft logo
Microsoft
Hard
Software Engineer Locked

Solve Throughput, Rate Limiting, and LFU

This set of tasks evaluates algorithmic problem-solving, data structure design, and systems-oriented reasoning by testing throughput calculation, roll...

Coding & AlgorithmsData Structure DesignRate Limiting
14
0
124 people solved
Mar 20, 2026
DoorDash logo
DoorDash
Medium
Machine Learning Engineer

Find closest value to a target in a BST

Problem Given the root of a binary search tree (BST) and a floating-point number target, return the value in the BST that is closest to target. If the...

Coding & AlgorithmsTrees
11
0
121 people solved
Oct 17, 2025
Airbnb logo
Airbnb
Medium
Software Engineer

Generate split-stay pairs efficiently

Given N Airbnb listings, each with available days as integers, and an inclusive requested date range [L, R], return all ordered pairs (X, Y) of distin...

Coding & AlgorithmsIntervals & Scheduling
31
0
316 people solved
Sep 6, 2025
Pinterest logo
Pinterest
Medium
Data Scientist Locked

Implement weighted random choice

This question evaluates understanding of weighted random sampling, probability distributions, input validation, and algorithmic time and space complex...

Coding & AlgorithmsProbabilityArrays & Strings
21
0
143 people solved
Mar 10, 2026
Snowflake logo
Snowflake
Hard
Software Engineer Locked

Solve scheduling and tree path problems

This set evaluates interval scheduling and constrained optimization for weighted, at-most-K selection, tree structure manipulation and subtree effects...

Coding & AlgorithmsTreesDynamic Programming
29
0
221 people solved
Feb 11, 2026
Uber logo
Uber
Medium
Software EngineerIntern

Minimum Rooms, Merged Busy Blocks and Conflict Handling for Meeting Intervals

You are given a list of meetings, each a pair [start, end] of integer times with start < end. The coding round opened with the classic meeting-room pr...

Software Engineering FundamentalsIntervals & SchedulingSorting
1
0
15 people solved
Dec 6, 2025
Cerebras logo
Cerebras
Medium
Software Engineer

Implement Binary Search in C++

From scratch in C++, implement binary search over a sorted array to locate a target value. Provide a correct iterative implementation, handle not-foun...

Coding & AlgorithmsBinary Search
11
0
115 people solved
Sep 6, 2025
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