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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
1.5k
Companies
980
Updated
11.12.2026
1.5k Questions 980 Companies11.12.2026
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
Amazon logo
Amazon
Easy
Software Engineer

Shorter Distance Around a Ring of Bus Stops

Problem Stops 0 through n-1 form a circle. distance[i] is the nonnegative distance from stop i to (i+1)%n, traversable in either direction. Return the...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
1
0
9 people solved
Google logo
GoogleMicrosoftAmazonMeta

Also asked at Amazon, Meta

Hard
Software Engineer

Longest Proper Prefix That Is Also a Suffix

Problem Return the longest nonempty prefix of s that is also a suffix, excluding s itself. The prefix and suffix occurrences may overlap. Return the e...

Coding & AlgorithmsString Algorithms
0
0
9 people solved
Microsoft logo
MicrosoftGoogleAmazonIntuit

Also asked at Amazon, Intuit

Easy
Software Engineer

Count Delivery Addresses after Local-Name Dot and Plus Rules

Problem For this task's email-address rules, split each string at its single @. In the local part only, discard every dot and ignore the first plus si...

Coding & AlgorithmsArrays & Strings
1
0
11 people solved
Google logo
Google
Hard
Software Engineer AI Locked

Solve checksum and dependency debugging tasks

This question evaluates skills in string processing, modular arithmetic-based checksum computation and mapping, plus debugging of feature enablement l...

Coding & AlgorithmsGraphsArrays & Strings
32
0
283 people solved
Apr 4, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer

Implement Wordle-style word guessing solver

Implement Wordle-style word guessing solver Implement a program to solve a Wordle-style word guessing game. The game has a hidden target word of fixed...

Coding & AlgorithmsArrays & Strings
45
0
625 people solved
Jul 17, 2025
Robinhood logo
Robinhood
Medium
Software Engineer

Design a referral leaderboard with chain-based counts

Design and implement a function that generates a referral leaderboard for a platform, given two equal-length arrays rh_users and new_users representin...

Coding & AlgorithmsTrees
51
0
584 people solved
Aug 12, 2025
Harvey logo
Harvey
Hard
Software Engineer Locked

Highlight Overlapping Phrases in a Sentence

Given a sentence such as The quick brown fox jumps over the lazy dog. and phrases such as quick brown and brown fox jumps, design a function that retu...

Software Engineering FundamentalsIntervals & SchedulingArrays & Strings
24
1
199 people solved
Jul 26, 2026
NVIDIA logo
NVIDIA
Medium
Software Engineer

Count Distinct Strings With a Hand-Built Hash Table, Then Parallelize It for GPUs

This question comes from an interview for a team that is porting an open-source search engine to run on GPUs, but the problem itself is general. Given...

Software Engineering FundamentalsData Structure DesignConcurrency
4
0
34 people solved
Jul 25, 2026
Booking.com logo
Booking.com
Medium
Software Engineer

Match Bookings to Payments

You are given two unsorted lists: - bookings: each record contains at least a unique booking_id - payments: each record contains at least a booking_id...

Coding & AlgorithmsArrays & Strings
15
0
158 people solved
Mar 15, 2026
Bloomberg logo
BloombergGoogleDoorDash

Also asked at DoorDash, Meta, Amazon, Microsoft, Walmart Labs, Adobe, Oracle, Morgan Stanley

Medium
Software Engineer

Find the Next Larger Integer with the Same Digits

Problem Rearrange the decimal digits of positive n to obtain the smallest integer strictly larger than n. Return -1 if none exists or if the smallest ...

Coding & AlgorithmsGreedyArrays & Strings
1
0
16 people solved
Optiver logo
Optiver
Medium
Software Engineer

Days Between Two Calendar Dates

Days Between Two Calendar Dates You are given two dates as strings, each in the format YYYY-MM-DD. Write a function that returns the number of days be...

Coding & AlgorithmsMath & Number Theory
20
0
154 people solved
Apr 21, 2026
Voleon logo
Voleon
Medium
Software Engineer

Count queen attacks on points with blockers

You are given positions on an (unbounded) 2D integer grid. - queens: coordinates of queens - points: query coordinates A queen attacks along 8 directi...

Coding & AlgorithmsBinary Search
82
0
607 people solved
Dec 9, 2025
Amazon logo
AmazonBloombergGoogleMeta

Also asked at Google, Meta

Medium
Software Engineer

Longest Uniform Answer Block After Limited Changes

Problem The string answerKey contains only T and F. You may change at most k positions to either symbol. Return the largest length of a contiguous blo...

Coding & AlgorithmsTwo Pointers & Sliding Window
0
0
10 people solved
Anthropic logo
Anthropic
Medium
Software Engineer

Find Duplicate Files

Implement a file deduplication tool. You are given a root directory containing many files. Return groups of duplicate files. Two files are duplicates ...

Coding & AlgorithmsFile & Media StorageConcurrency
45
0
309 people solved
Mar 2, 2026
Palantir logo
PalantirAmplitudeAtlassian

Also asked at Atlassian, Amazon, Google, Microsoft, Uber, Salesforce, IXL Learning, WeRide

Medium
Software EngineerSenior+

Simulate a Growing Snake on a Grid and Report the Score After Every Move

A snake moves on a rectangular board with height rows and width columns. Cells are written (row, col), with (0, 0) in the top-left corner. The snake s...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
2
0
41 people solved
Flipkart logo
FlipkartAmazonGoogle

Also asked at Google, Bloomberg, Meta, Microsoft, PhonePe, Adobe, Barclays

Medium
Software Engineer

Earliest Day for m Disjoint Adjacent-Flower Bouquets

Problem Flower i becomes available on bloomDay[i]. Each bouquet requires k adjacent garden positions,all bloomed by the chosen day,and each flower may...

Coding & AlgorithmsBinary SearchArrays & Strings
0
0
8 people solved
Google logo
Google
Easy
Software Engineer Locked

Count Rectangle Coverage on a Grid

Apply many inclusive rectangular increments to a square grid and return the final coverage count for every cell. The exercise emphasizes upper-bound e...

Coding & AlgorithmsGrids & Matrices
73
3
595 people solved
Jul 21, 2026
Google logo
GoogleIntuitTikTok

Also asked at TikTok, Amazon, Microsoft, Snapchat, Meta, Oracle, DoorDash, Verkada, Motive

Hard
Software Engineer

Evaluate Parenthesized Integer Arithmetic

Problem Evaluate the valid arithmetic string s containing nonnegative integer tokens, +, -, *, / and parentheses. Apply ordinary precedence, grouping ...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
17 people solved
Visa logo
Visa
Medium
Software Engineer

Minimum Travel Cost Between Array Indices

Minimum Travel Cost Between Array Indices You are given a strictly increasing integer array nums and a list of independent queries queries. For an ind...

Coding & AlgorithmsArrays & StringsGraphs
0
0
11 people solved
Amazon logo
AmazonTCSGoogle

Also asked at Google, Agoda, Meta, Microsoft, Bloomberg

Easy
Software Engineer

Dense Ranks Preserving Value Order and Equality

Problem Replace each value by its smallest possible positive rank: equal values share a rank, and a larger value must have a larger rank. Return ranks...

Coding & AlgorithmsSortingArrays & Strings
0
0
9 people solved
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