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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
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
Google logo
GoogleMicrosoftBloombergZoho

Also asked at Bloomberg, Zoho

Easy
Software Engineer

Check Whether the Maximum Dominates Every Other Value

Problem The array has a unique largest value. Return its index if it is at least twice every other entry; otherwise return -1. `cpp class Solution { p...

Coding & AlgorithmsArrays & Strings
0
0
12 people solved
Microsoft logo
Microsoft
Hard
Software Engineer

Find all balanced k in a permutation

You are given a permutation \(p\) of length \(n\) containing each integer from \(1\) to \(n\) exactly once. For each \(k\) where \(1 \le k \le n\), de...

Coding & AlgorithmsArrays & Strings
44
0
323 people solved
Mar 1, 2026
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
Google logo
GoogleMetaAmazon

Also asked at Amazon, Ozon, Capital One, Bloomberg

Easy
Software Engineer

Recognize Nondecreasing or Nonincreasing Arrays

Problem Return whether nums is monotonic: either every earlier value is no greater than every later value, or every earlier value is no smaller than e...

Coding & AlgorithmsArrays & Strings
1
0
13 people solved
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
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
Harvey logo
Harvey
Medium
Software Engineer

Design an in-memory file system with limits

Design and implement an in-memory hierarchical file system. Requirements: 1) addFile(String path): Given an absolute path like "path/to/somewhere/file...

Coding & AlgorithmsData Structure DesignTrees
79
0
782 people solved
Sep 6, 2025
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
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, TCS, Microsoft, TikTok, IBM, Oracle

Easy
Software Engineer

Kth Positive Integer Missing from an Increasing Array

Problem Given the strictly increasing positive array arr,return the kth positive integer absent from it. Missing values may occur before,between,or af...

Coding & AlgorithmsBinary SearchArrays & Strings
1
0
7 people solved
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
Netapp logo
Netapp
Medium
Software Engineer Locked

Rank Teams from Ballot Preferences

Rank teams from complete preference ballots by comparing vote counts at each position in order, then use alphabetical team ID as the final tie-break.

Coding & AlgorithmsSortingArrays & Strings
5
0
41 people solved
Aug 9, 2026
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
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
Snowflake logo
SnowflakeAmazon
Medium
Software Engineer

Highest ID Frequency After Each Update

Highest ID Frequency After Each Update Start with an empty collection of integer IDs. You are given equally sized arrays nums and freq, describing upd...

Coding & AlgorithmsTreesArrays & Strings
0
0
15 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
Uber logo
UberGoogleSnowflake

Also asked at Snowflake, Meesho, Meta, Amazon, Bloomberg, Snapchat

Hard
Software Engineer

Build a Target from Increasing Dictionary Columns

Problem The strings in words have a common length. Build target from left to right by choosing a matching character from any word at a column strictly...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
12 people solved
Google logo
GoogleAmazon
Easy
Software Engineer

Count Distinct Concatenated Morse Encodings

Problem Encode each lowercase word by concatenating the Morse strings of its letters without separators. Return the number of different encoded string...

Coding & AlgorithmsArrays & Strings
1
0
14 people solved
Ramp logo
Ramp
Hard
Software Engineer

Track Users From Flight History

You are given an unsorted list of flight records. Each record contains departure_airport, departure_time, arrival_airport, arrival_time, and user_id. ...

Coding & AlgorithmsArrays & StringsSorting
18
0
275 people solved
Jan 17, 2026
Salesforce logo
SalesforceIBMAmazon

Also asked at Amazon, Meta, Google, Uber, Microsoft, Bloomberg, TikTok, Deshaw

Hard
Software Engineer

Compare the Highest and Lowest Scores from k Contiguous Bags

Problem Partition all marble weights into exactly k nonempty contiguous groups, preserving their original order. A group from i through j costs weight...

Coding & AlgorithmsGreedySorting
0
0
9 people solved
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