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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
Google logo
GoogleBloombergMicrosoft

Also asked at Microsoft, Meta, Amazon, TikTok, BCG, DoorDash, Infosys, Oracle, TCS, Apple, Goldman Sachs, Yandex, HCL, Citi

Medium
Software Engineer

Minimize a Positive-Array Target Window Length

Problem Return the smallest length of a nonempty contiguous subarray whose sum is at least target. If no such subarray exists, return 0. All input val...

Coding & AlgorithmsTwo Pointers & Sliding WindowBinary Search
2
1
24 people solved
LinkedIn logo
LinkedIn
Medium
Software Engineer

Return the K Smallest Pairwise Products of Two Sorted Arrays

You are given two integer arrays nums1 and nums2, each sorted in non-decreasing order, and an integer k. Every pair of indices (a, b) with 0 <= a < le...

Coding & AlgorithmsHeaps & Priority Queues
11
1
161 people solved
Sep 24, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Implement an ObjectTracker That Merges Observations From Two Perception Systems

Two perception systems track the same objects under different IDs. Implement an ObjectTracker with addLink, addObservation and getHistory that returns...

Software Engineering FundamentalsData Structure DesignGraphs
4
0
66 people solved
Sep 10, 2026
Google logo
Google
Medium
Software Engineer

Earliest Time a Friendship Log Connects Everyone, With Hop Limit and Unfriends

You are given a list of friendship log entries and the total number of users n. Each entry has the form `text timestamp, userA connects to userB ` mea...

Software Engineering FundamentalsGraphs
8
0
99 people solved
Sep 16, 2026
Waymo logo
Waymo
Medium
Machine Learning EngineerNew Grad Locked

Return All Words Matching Each Prefix From a Word List

Build a structure over a word list that answers prefix queries, returning every distinct word that starts with each prefix in lexicographic order. Tes...

Coding & AlgorithmsTreesData Structure Design
5
0
110 people solved
Sep 10, 2026
OpenAI logo
OpenAI
Hard
Software Engineer Locked

Consistent Hashing Ring with Virtual Nodes for Shard Rebalancing

This question evaluates a candidate's ability to design and implement a consistent hashing ring with virtual nodes for distributing keys across shards...

Coding & AlgorithmsPartitioning & Consistent HashingData Structure Design
44
0
496 people solved
Jun 26, 2026
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Expiring GPU Credit Ledger with Out-of-Order Events and Point-in-Time Balance

A two-part coding exercise to build a GPU credit ledger with expiring grants, usage deducted earliest-expiration-first, out-of-order events and balanc...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
9
0
107 people solved
Sep 12, 2026
Google logo
GoogleMicrosoftAmazonMeta

Also asked at Amazon, Meta

Hard
Software Engineer

Locate a Rotated Minimum despite Duplicate Ambiguity

Problem Return the minimum value in an array obtained by rotating a sorted nondecreasing array right between one and its length times. Values may repe...

Coding & AlgorithmsBinary Search
3
0
21 people solved
AMD logo
AMD
Medium
Software Engineer

DevOps Experience, Jenkins Pipelines and Plugins, and Reading Very Large Log Files

This part of the round mixed an experience question with practical DevOps questions: your experience related to DevOps work, how Jenkins and its plugi...

Software Engineering FundamentalsCI/CD & Deployment
2
0
25 people solved
Oct 9, 2026
Stripe logo
Stripe
Medium
Software Engineer

Implement a scheduler that fits deployments into allowed deployment windows

In an online assessment you implement a deployment window scheduler. Deployments may run only inside allowed deployment windows, and the scheduler dec...

Software Engineering FundamentalsIntervals & Scheduling
1
0
9 people solved
Oct 21, 2026
Virtu Financial logo
Virtu Financial
Hard
Quantitative Researcher

Heaviest Plate Subset Within a Barbell Capacity, Up to 42 Plates

You have n barbell plates with weights weights[0], ..., weights[n - 1], and a barbell that can hold a total weight of at most max_capacity. Choose a s...

Coding & AlgorithmsBacktracking & Recursion
8
0
61 people solved
Sep 16, 2026
Waymo logo
Waymo
Medium
Software Engineer Locked

Count Squares Formed by Intersections of Vertical and Horizontal Segments

Given vertical and horizontal line segments defined by start and end points, count the axis-aligned squares whose four corners are all segment interse...

Coding & AlgorithmsMath & Number Theory
16
0
116 people solved
Sep 10, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Find a Target's Index in a Rotated Sorted Array of Distinct Integers

An array of distinct integers was sorted in strictly increasing order and then rotated at an unknown pivot: for some k with 0 <= k < n, the array [a0,...

Coding & AlgorithmsBinary Search
4
1
34 people solved
Oct 4, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Select the K-th Largest Value from an Unsorted Array Without a Heap

Given an unsorted array of integers and an integer k, return the k-th largest value in the array. Duplicates count separately: the answer is the value...

Coding & AlgorithmsSorting
5
0
77 people solved
Oct 10, 2026
Glean logo
Glean
Medium
Software Engineer

Serve Top-k Prefix Suggestions Filtered by Department Within a Tight Memory Budget

A service keeps a static list of suggestions. Each suggestion is a tuple (ngram: str, department: int, score: int). Implement `python getTopSuggestion...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
3
0
46 people solved
Sep 30, 2026
Spotify logo
Spotify
Hard
Software Engineer

Precompute Nearest Target Positions and Define Streaming Answers

An array contains characters such as x, y, and z. Design a representation that can answer nearest-z queries for relevant positions, then explain how y...

Software Engineering FundamentalsArrays & Strings
0
0
6 people solved
Oct 18, 2026
Glean logo
Glean
Medium
Software Engineer

Simulate Modulo-Assigned Document Indexers with Wrap-Around and Rank the Busiest

Documents are indexed through a processing queue served by m indexers, numbered 0 to m - 1. Document i (0-based) arrives at time queue_time[i] and nee...

Coding & AlgorithmsSimulation & State MachinesHeaps & Priority Queues
4
0
55 people solved
Sep 30, 2026
Apple logo
AppleMongoDBGoogle

Also asked at Google, Microsoft, TikTok, Amazon, Databricks, DeepMind, Snowflake, Rubrik, Verkada, Coupang, SpaceXAI, Meta

Medium
Software Engineer

Array Values at Saved Snapshot Versions

Problem Implement the native SnapshotArray class. Construction creates length zeros. set(index,val) changes the current value. snap() saves the curren...

Coding & AlgorithmsData Structure DesignBinary Search
3
0
31 people solved
Lyft logo
Lyft
Medium
Software EngineerSenior+

Design a Globally Versioned Key-Value Store

Design a versioned key-value store with a version number shared globally across keys. A historical read uses get(key, version) to retrieve the value a...

Software Engineering FundamentalsData Structure DesignBinary Search
17
1
132 people solved
Sep 8, 2026
Citadel logo
CitadelGoogleAmazon

Also asked at Amazon, Apple, Microsoft, Lyft, Compass, Cockroach Labs, Bloomberg, Netflix, Axon, Coinbase, Gusto, Uber, Confluent, Databricks, Oracle, OpenAI, Meta, Snowflake

Medium
Software Engineer

Store Timestamped Values and Retrieve the Latest Eligible Version

Problem Implement TimeMap(), set(key,value,timestamp), and get(key,timestamp). A set stores a value for that key at that timestamp. A get returns the ...

Coding & AlgorithmsData Structure DesignBinary Search
1
0
24 people solved
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