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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
BlackRock logo
BlackRock
Medium
Software Engineer

Reach Binary Patterns by Sorting Subsequences

Reach Binary Patterns by Sorting Subsequences You are given a binary string s and an array of strings strs, each of the same length as s. Every target...

Coding & AlgorithmsGreedyArrays & Strings
1
0
10 people solved
Squarepoint logo
Squarepoint
Easy
Software EngineerIntern Locked

Apply Insert, Update, and Remove Operations to a Keyed Store

Apply insert, update, and remove commands to a keyed store with explicit duplicate and missing-key policies and deterministic final records.

Coding & AlgorithmsData Structure Design
8
1
93 people solved
Jun 20, 2026
Amazon logo
AmazonBloombergGoogle

Also asked at Google, Meta, Microsoft

Medium
Software Engineer

Stable Alternation of Positive and Negative Entries

Problem The array nums has even length, equal numbers of positive and negative entries, and no zeros. Rearrange its entries so signs alternate and the...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
9 people solved
OpenAI logo
OpenAI
Medium
Software Engineer

Rectangle Store With Constant-Time Point Coverage Counts and Removal by ID

Implement a data structure that stores axis-aligned rectangles, each identified by an id, and answers point queries. It supports three operations: - a...

Software Engineering FundamentalsData Structure Design
1
0
8 people solved
Jul 13, 2026
Amazon logo
AmazonIBM
Medium
Software Engineer

Partition a String into the Fewest Duplicate-Free Pieces

Problem Cut lowercase s into nonempty contiguous substrings so each character belongs to exactly one piece and no letter repeats within any piece. Ret...

Coding & AlgorithmsGreedyArrays & Strings
0
0
10 people solved
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Bloomberg, Meta, Accenture

Easy
Software Engineer

Identify the Added Letter

Identify the Added Letter String t was made by shuffling the letters of string s and adding one additional lowercase letter at some position. Return t...

Coding & AlgorithmsArrays & Strings
0
0
4 people solved
Bloomberg logo
BloombergGoogleSumologic
Medium
Software Engineer

Minimize Position Mismatches Using Allowed Swaps

Problem source and target have equal length. An entry [a,b] in allowedSwaps permits exchanging source positions a and b any number of times, in any or...

Coding & AlgorithmsGraphsArrays & Strings
1
0
8 people solved
Bloomberg logo
Bloomberg
Medium
Software Engineer

Manage Pending Tasks with Global IDs and Due-Date Ordering

Problem Implement TodoList, initially with no tasks. - addTask(userId, taskDescription, dueDate, tags) adds a pending task and returns a global task I...

Coding & AlgorithmsData Structure DesignSorting
1
0
9 people solved
Uber logo
Uber
Medium
Software Engineer

Implement binary search from scratch

Question Implement binary search on a sorted integer array without using any library helpers (no bisect, Arrays.binarySearch, etc.). Provide both iter...

Coding & AlgorithmsBinary Search
22
0
167 people solved
Aug 1, 2025
Moveworks logo
Moveworks
Medium
Software Engineer

Select next Hangman letter

Given the current state of a Hangman game, implement a function that selects the next letter with the highest likelihood of appearing in the secret wo...

Coding & AlgorithmsString AlgorithmsArrays & Strings
35
1
337 people solved
Sep 6, 2025
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Meta, Bloomberg, eBay, Intuit

Hard
Software Engineer

Count Earlier Values Greater Than Twice a Later Value

Count Earlier Values Greater Than Twice a Later Value Given nums, count the index pairs (i, j) satisfying both i < j and nums[i] > 2 * nums[j]. The co...

Coding & AlgorithmsSortingTwo Pointers & Sliding Window
0
0
5 people solved
Salesforce logo
Salesforce
Medium
Software Engineer

Sum a Matrix After Row and Column Assignments

Sum a Matrix After Row and Column Assignments An n x n matrix starts with every entry equal to zero. You are given a 0-indexed array queries, where ea...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
0
0
6 people solved
Visa logo
VisaMicrosoftAmazonOracle

Also asked at Amazon, Oracle

Medium
Software Engineer

Move Units Left to Minimize the Largest Array Value

Problem One operation chooses i>0 with nums[i]>0, decreases nums[i] by 1, and increases nums[i-1] by 1. Starting from nonnegative nums, return the sma...

Coding & AlgorithmsGreedyArrays & Strings
0
0
11 people solved
Meta logo
Meta
Medium
Data Engineer

Solve SQL and Python coding tasks

You are given a small library system with the following relational schema and several Python data-processing tasks. Answer the SQL questions and imple...

Coding & AlgorithmsSQLDynamic Programming
82
6
553 people solved
Nov 20, 2025
Visa logo
VisaInfosysMicrosoftPoint72

Also asked at Microsoft, Point72

Medium
Software Engineer

Maximize the Bitwise OR Within a Doubling Budget

Maximize the Bitwise OR Within a Doubling Budget You are given a zero-indexed array nums of positive integers and an integer k. One operation chooses ...

Coding & AlgorithmsBit ManipulationGreedy
1
0
13 people solved
Microsoft logo
Microsoft
Medium
Software Engineer

Thread Safety, Deadlock Prevention, and Arrays vs Linked Lists

In a rapid-fire concepts segment of a software engineering interview, the interviewer asked four short questions in a row about concurrency and basic ...

Software Engineering FundamentalsConcurrencyLinked Lists
1
0
14 people solved
Aug 4, 2026
Voleon logo
Voleon
Medium
Software Engineer

Design circular sliding-window ratio tracker

You are given a circular binary array A of length n (A[i] ∈ {0,1}) and a fixed window size w (1 ≤ w ≤ n). Define r (i) as the fraction of 1s within th...

Coding & AlgorithmsData Structure DesignTwo Pointers & Sliding Window
32
0
450 people solved
Sep 6, 2025
Amazon logo
AmazonGoogleBloomberg
Hard
Software Engineer

Count Arithmetic Subsequences

Count Arithmetic Subsequences Given an integer array nums, return the number of subsequences of length at least three whose consecutive values have th...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
0
0
7 people solved
Google logo
GoogleAmazonMeta

Also asked at Meta, Bloomberg, Microsoft, Squarepoint

Easy
Software Engineer

Reach the Staircase Top at Minimum Cost

Problem cost[i] is paid when leaving step i, after which you may climb one or two steps. You may begin at step 0 or step 1. Return the least total cos...

Coding & AlgorithmsDynamic Programming
1
0
9 people solved
Amazon logo
AmazonUberTomTomMicrosoft

Also asked at TomTom, Microsoft

Medium
Software Engineer

First Value Appearing Exactly Once in an Append-Only Queue

Problem Implement the native FirstUnique class. The constructor initializes the queue with nums. add appends one value. showFirstUnique returns the ea...

Coding & AlgorithmsData Structure DesignStacks & Queues
0
0
8 people solved
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