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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

Compute courier pay and implement load balancing

Problem 1: Compute courier (delivery driver) pay You are given a sequence of delivery-related events for a courier during a day. Your task is to compu...

Coding & AlgorithmsPartitioning & Consistent HashingData Structure Design
140
2
1089 people solved
Dec 16, 2025
Microsoft logo
Microsoft
Easy
Software Engineer

Solve four classic algorithm problems

You are given four independent coding tasks. For each task, implement the required function. --- Problem 1: Zigzag level-order traversal of a binary t...

Coding & AlgorithmsDynamic ProgrammingTrees
33
0
268 people solved
Nov 30, 2025
Uber logo
Uber
Medium
Software Engineer

Solve minimum rate and subset sum

1) Minimum rate to finish vaults within a deadline: You are given an array vaults of positive integers representing the amount in each vault along a r...

Coding & AlgorithmsBinary SearchDynamic Programming
18
0
130 people solved
Sep 6, 2025
Datadog logo
Datadog
Medium
Software Engineer

Design log queries and a buffered writer

Part A — Log store with time-range queries: Implement a data structure that ingests log entries with ISO-8601 timestamps (e.g., YYYY-MM-DD HH:MM:SS) a...

Coding & AlgorithmsData Structure Design
74
0
503 people solved
Sep 6, 2025
Salesforce logo
Salesforce
Medium
Software Engineer Locked

Maximal Square and Longest Increasing Subsequence

Implement two independent analyses: the largest all-ones square in a binary matrix and the length of a strictly increasing subsequence. Account for em...

Coding & AlgorithmsDynamic ProgrammingBinary Search
8
0
162 people solved
Jul 9, 2026
Google logo
Google
Hard
Software Engineer Locked

Compute minimax grid path and network delay

This question evaluates algorithmic problem-solving in shortest-path and path-optimization contexts, specifically minimax pathfinding on a grid and si...

Coding & AlgorithmsGraphsBinary Search
25
0
303 people solved
Jan 22, 2026
Goldman Sachs logo
Goldman Sachs
Easy
Software Engineer Locked

Search for a Target in a Matrix Sorted by Rows and Columns

Decide whether a target value appears in an integer matrix whose rows and columns are each sorted in non-decreasing order. It tests how well a candida...

Coding & AlgorithmsGrids & Matrices
9
0
71 people solved
Sep 13, 2026
DoorDash logo
DoorDash
Easy
Software Engineer

Implement a consistent hashing ring

Implement a class ConsistentHashRing that distributes keys across servers using a hash ring with virtual nodes. Required API: - ConsistentHashRing(rep...

Coding & AlgorithmsPartitioning & Consistent HashingBinary Search
23
0
241 people solved
Jan 28, 2026
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Implement a Consistent Hash Ring

Design a consistent hash ring with virtual nodes for stable key-to-backend routing and limited remapping after membership changes. Specify sorted toke...

Software Engineering FundamentalsPartitioning & Consistent HashingBinary Search
19
0
141 people solved
Jul 10, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Time-Versioned Key-Value Store and Time-Window Event Counter

Build two small time-aware data structures. The first is a key-value store that keeps every value a key has had, each tagged with the timestamp at whi...

Software Engineering FundamentalsData Structure DesignBinary Search
1
0
16 people solved
Apr 28, 2026
Meta logo
Meta
Medium
Machine Learning Engineer

Solve shipping capacity and expression insertion

Problem A: Minimum shipping capacity You are given an array weights where weights[i] is the weight of the i-th package. Packages must be shipped in or...

Coding & AlgorithmsBinary SearchBacktracking & Recursion
16
0
148 people solved
Dec 15, 2025
Oracle logo
Oracle
Medium
Software Engineer

Timestamped key-value store: return each key's value as of a query time

Build a key-value store that keeps every version of each key. Each write records a value for a key at a timestamp. Each read asks what the value of a ...

Coding & AlgorithmsData Structure DesignBinary Search
1
0
21 people solved
Aug 1, 2026
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Solve three coding rounds

This multi-part question evaluates algorithmic problem-solving and practical implementation skills, covering grid geometry and distance metrics for ne...

Coding & AlgorithmsData Structure DesignParsing & Interpreters
27
0
233 people solved
Mar 1, 2026
Cockroach Labs logo
Cockroach Labs
Medium
Software Engineer

Point-in-Time Reads from a Timestamped Key-Value Store

Implement a key-value store that keeps every version of each key. A write records a value for a key at a timestamp without discarding earlier versions...

Coding & AlgorithmsData Structure DesignBinary Search
1
0
14 people solved
Jul 7, 2026
Confluent logo
Confluent
Medium
Software Engineer Locked

Implement File Tail and Sensor Health

This question evaluates skills in large-file streaming and buffer/pointer manipulation for tailing files, along with data-structure and time-window re...

Coding & AlgorithmsOperating SystemsData Structure Design
19
0
173 people solved
Jan 28, 2026
Uber logo
Uber
Medium
Software Engineer

Solve vault rate and subset-sum

1) Robber vaults rate: You are given an array vaults of positive integers where vaults[i] is the amount in the i-th vault, and an integer h (hours). I...

Coding & AlgorithmsDynamic ProgrammingBinary Search
11
0
99 people solved
Sep 6, 2025
Google logo
Google
Hard
Software Engineer Locked

Minimize maximum height along a grid path

This question evaluates algorithmic pathfinding and graph-modeling skills, specifically reasoning about grid-based route selection where the objective...

Coding & AlgorithmsGrids & MatricesGraphs
19
1
131 people solved
Jan 4, 2026
LinkedIn logo
LinkedIn
Medium
Machine Learning Engineer

Sample index from weighted probability distribution

Given an array weights[0..M-1] representing a discrete distribution over M outcomes, implement a function sampleIndex(weights) that returns an index i...

Coding & AlgorithmsProbability
11
2
210 people solved
Feb 18, 2026
TikTok logo
TikTok
Medium
Software Engineer

Compute length of longest increasing subsequence

You are given an integer array nums of length n. A subsequence of nums is a sequence that can be derived from nums by deleting zero or more elements w...

Coding & AlgorithmsDynamic ProgrammingBinary Search
14
0
137 people solved
Dec 10, 2025
Google logo
Google
Hard
Software Engineer

Largest Subarray Sum with a Limited Number of Swaps

Largest Subarray Sum with a Limited Number of Swaps You are given an integer array nums and an integer k. You may perform at most k swaps. Each swap e...

Coding & AlgorithmsGreedyArrays & Strings
0
0
8 people solved
Previous1...121314...17Next
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