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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
Microsoft logo
MicrosoftGoogleBloomberg

Also asked at Bloomberg, Amazon, Meta, Oracle

Hard
Software Engineer

Find the First Matching Index in a Hidden Mountain Array

Find the First Matching Index in a Hidden Mountain Array A hidden array increases strictly to one interior peak and then decreases strictly. Its lengt...

Coding & AlgorithmsBinary Search
1
0
8 people solved
Two Sigma logo
Two Sigma
Easy
Data Scientist

Match readings with latest same-city humidity

Problem You are given two time-sorted lists of sensor readings: - Temperature records: (time, city, reading) - Humidity records: (time, city, reading)...

Coding & AlgorithmsTwo Pointers & Sliding Window
24
2
270 people solved
Dec 15, 2025
Amazon logo
AmazonMicrosoftGoogleBloomberg

Also asked at Google, Bloomberg

Medium
Software Engineer

Find Each Interval's Nearest Eligible Starting Interval

Find Each Interval's Nearest Eligible Starting Interval You are given intervals [start_i,end_i] with unique starting points. For each interval i, find...

Coding & AlgorithmsBinary SearchIntervals & Scheduling
0
0
7 people solved
J.P. Morgan logo
J.P. Morgan
Medium
Data ScientistSenior+

Implement Integer Square Root

Given a non-negative integer x, implement sqrt(x) and return the integer part of its square root, i.e., floor(sqrt(x)). Requirements: - Do not use a b...

Coding & AlgorithmsBinary Search
19
0
125 people solved
Apr 24, 2026
Microsoft logo
MicrosoftBloomberg
Hard
Software Engineer

Kth Distinct Amount Using One Denomination

Kth Distinct Amount Using One Denomination You are given distinct coin denominations in coins and a positive integer k. An unlimited number of coins o...

Coding & AlgorithmsMath & Number TheoryBinary Search
1
0
9 people solved
Google logo
GoogleMicrosoftAmazon
Medium
Software Engineer

Minimize the Longest Jump on a Round Trip through Ordered Stones

Problem The frog starts at stones[0]=0, must reach the last stone, then return to the first. It may jump to each stone at most once; the initial place...

Coding & AlgorithmsGreedyArrays & Strings
0
0
8 people solved
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
Google logo
Google
Medium
Software Engineer Locked

Find a Horizontal Cut That Bisects Rectangle Area

Solve a computational-geometry problem that asks for the horizontal line dividing the combined area of many disjoint rectangles in half. The exercise ...

Coding & AlgorithmsBinary SearchMath & Number Theory
28
2
220 people solved
Jun 4, 2026
Amazon logo
Amazon
Hard
Software Engineer

Maximum Meeting Earnings Including Idle Gaps

Maximum Meeting Earnings Including Idle Gaps You are given meetings, where each row is [start, end, revenue]. Select a nonempty subset of meetings tha...

Coding & AlgorithmsIntervals & SchedulingDynamic Programming
0
0
5 people solved
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
Microsoft logo
Microsoft
Medium
Software Engineer

Solve load balancing and perfect pairs

1) Contiguous load balancing: You have n identical resources (servers) and m ordered tasks with processing times burstTime[0..m-1]. Each server must b...

Coding & AlgorithmsBinary SearchArrays & Strings
37
0
241 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
Google logo
GoogleAmazon
Hard
Software Engineer

Answer Sorted Pair-GCD Position Queries

Problem Given a positive integer array nums, form one greatest common divisor for every pair of different positions (i, j) with i < j. Sort all those ...

Coding & AlgorithmsMath & Number TheoryBinary Search
0
0
9 people solved
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
Gusto logo
Gusto
Medium
Software EngineerSenior+ Locked

Implement a timestamped map

This question evaluates a candidate's ability to implement time-indexed key-value storage, covering data structure design, versioning semantics, and a...

Coding & AlgorithmsData Structure DesignBinary Search
11
0
131 people solved
Mar 3, 2026
Google logo
Google
Medium
Machine Learning Engineer Locked

Implement substring search and weighted sampling

This question evaluates algorithm design and analysis skills across string processing (efficient substring search) and randomized/data-structure techn...

Coding & AlgorithmsString AlgorithmsMath & Number Theory
22
0
198 people solved
Mar 30, 2026
Google logo
GoogleAmazonMetaBloomberg

Also asked at Meta, Bloomberg

Medium
Software Engineer

Find the First Query Prefix That Can Make an Array Zero

Find the First Query Prefix That Can Make an Array Zero Problem You are given a nonnegative integer array nums and a list of queries. Query [l, r, val...

Coding & AlgorithmsBinary SearchArrays & Strings
1
0
9 people solved
Instacart logo
Instacart
Medium
Software Engineer

Implement timestamped task management system APIs

You are implementing an in-memory Task Management System. All API methods are called with a timestamp representing the logical time when the operation...

Coding & AlgorithmsData Structure Design
33
0
301 people solved
Dec 21, 2025
Google logo
GoogleAmazonMetaMeesho

Also asked at Meta, Meesho

Medium
Software Engineer

Earliest Time to Finish Enough Independent Trips

Problem Bus i takes time[i] units of time to complete one trip. All buses start at time zero, operate independently and immediately begin another trip...

Coding & AlgorithmsBinary Search
0
0
9 people solved
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
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