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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
GoogleAccentureMicrosoft

Also asked at Microsoft, Amazon, Bloomberg

Easy
Software Engineer

Count Splits with an Even Sum Difference

Problem Given an integer array nums of length n, choose a split index i with 0 <= i < n - 1. It divides the array into two nonempty contiguous parts: ...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
1
0
11 people solved
Meta logo
Meta
Hard
Software Engineer

Design a bank system with scheduling and rankings

Design a bank system with scheduling and rankings Design an In‑Memory Bank System (Technical Screen) You are designing an in‑memory bank ledger that s...

System DesignData Structure DesignHeaps & Priority Queues
10
0
155 people solved
Jul 27, 2025
Jump Trading logo
Jump Trading
Medium
Machine Learning Engineer

Solve stock trading with pattern rules

Question Given an array of daily stock prices and two pattern arrays: sellPattern and buyPattern, each consisting of 1 (price up) and -1 (price down) ...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
14
0
136 people solved
Aug 4, 2025
Amazon logo
AmazonGoogleBloombergMicrosoft

Also asked at Bloomberg, Microsoft

Easy
Software Engineer

How Many Copies of balloon Can Be Assembled?

Problem Rearrange letters from text to assemble as many separate copies of balloon as possible. Each occurrence in text can be used at most once acros...

Coding & AlgorithmsArrays & Strings
0
0
8 people solved
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Minimum total cost to convert one string into another using weighted character rules

You are given two strings, source and target, of the same length n, both made of lowercase English letters. You are also given a set of character conv...

Coding & AlgorithmsGraphs
1
0
15 people solved
Apr 3, 2026
Affirm logo
Affirm
Medium
Software Engineer Locked

Find shortest unique substring per word

This question evaluates string-processing and algorithmic problem-solving skills, focusing on identifying substrings unique to each word while handlin...

Coding & AlgorithmsString AlgorithmsArrays & Strings
20
0
150 people solved
Oct 27, 2025
Meta logo
Meta
Medium
Machine Learning EngineerSenior+ Locked

Deep copy a linked list with random pointers

This question evaluates understanding of linked-list structures, pointer/reference manipulation, deep versus shallow copying, and the ability to analy...

Coding & AlgorithmsLinked Lists
5
0
89 people solved
Jan 22, 2026
Netflix logo
Netflix
Medium
Software Engineer

Group users by same last K watched movies

You are given a list of users' movie-watching histories. Each user’s history is an ordered list of movie IDs in the order they were watched (earliest ...

Coding & AlgorithmsArrays & Strings
14
0
269 people solved
Dec 8, 2025
Disney logo
Disney
Medium
Software Engineer Locked

Implement an LRU cache

This question evaluates understanding of data structures and algorithmic optimization for constant-time cache operations, with emphasis on cache evict...

Coding & AlgorithmsData Structure DesignLinked Lists
9
0
93 people solved
Jan 22, 2026
Microsoft logo
MicrosoftGoogleAmazonMeta

Also asked at Amazon, Meta

Easy
Software Engineer

Remove Zero Digits and Multiply by Their Sum

Problem Given a nonnegative integer n, form an integer x by removing every zero digit from its ordinary decimal representation, while keeping the othe...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
10 people solved
Uber logo
Uber
Hard
Software Engineer

Smallest Palindromic Number Strictly Greater Than n, Up to 18 Digits

Given a positive integer n written as a decimal string, return the smallest integer that is strictly greater than n and is a palindrome, meaning its d...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
5
0
50 people solved
Jun 29, 2026
Microsoft logo
Microsoft
Medium
Machine Learning EngineerIntern

Return the k most frequent values in an array with a deterministic tie rule

Given an integer array nums and an integer k, return the k values that occur most often in nums. Rank the distinct values of nums by frequency (number...

Coding & AlgorithmsHeaps & Priority QueuesSorting
2
0
23 people solved
Feb 5, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, Microsoft

Medium
Software Engineer

Count Subarrays Whose Values Stay Within Two

Count Subarrays Whose Values Stay Within Two You are given a 0-indexed integer array nums. Call a subarray continuous if every pair of its elements di...

Coding & AlgorithmsTwo Pointers & Sliding WindowStacks & Queues
0
0
9 people solved
Digitalocean logo
Digitalocean
Medium
Software Engineer Locked

Clarify a Longest-Repeating-Character Replacement Problem

Clarify replacement and substring semantics, then analyze the conditional sliding-window criterion based on window size and maximum character frequenc...

Software Engineering FundamentalsTwo Pointers & Sliding Window
2
0
24 people solved
Sep 16, 2026
Meta logo
Meta
Easy
Machine Learning Engineer Locked

Solve four OA string/array/matrix/graph tasks

This multi-part prompt evaluates proficiency in core programming competencies: string parsing and character classification, simulation/greedy processi...

Coding & AlgorithmsArrays & StringsGrids & Matrices
13
0
106 people solved
Feb 12, 2026
Apple logo
Apple
Medium
Accessories Software QA EngineerNew Grad

Design a Score for Imperfect Palindromes

Design a scoring method for how closely a string resembles a palindrome when it is not an exact palindrome. Identify the aspects of resemblance you wo...

System DesignArrays & StringsTesting & Quality
2
0
26 people solved
Mar 16, 2026
TCS logo
TCSGoogleMetaAmazon

Also asked at Meta, Amazon

Medium
Software Engineer

Maximum Total Subarray Range with Repeatable Choices

Problem Given an integer array nums and a positive integer k, select exactly k nonempty contiguous subarrays. Selections may overlap. The same endpoin...

Coding & AlgorithmsArrays & StringsGreedy
0
0
9 people solved
IBM logo
IBM
Medium
Software Engineer

Maximize palindromic strings after character swaps

You are given an integer n and an array of n lowercase strings arr. Operation (can be performed any number of times): choose two different strings arr...

Coding & AlgorithmsArrays & StringsGreedy
13
0
161 people solved
Jan 31, 2026
Teradata logo
TeradataGoogleAmazon

Also asked at Amazon, Uber, Meta

Medium
Software Engineer

Reach the Last Index with Prime Jumps

Reach the Last Index with Prime Jumps You are given an integer array nums of length n. Start at index 0 and reach index n - 1 using as few jumps as po...

Coding & AlgorithmsGraphsMath & Number Theory
0
0
5 people solved
Eightfoldai logo
Eightfoldai
Medium
Software Engineer

Make a Parentheses String Valid

Given a string s containing lowercase English letters and the characters '(' and ')', remove the minimum number of parentheses so that the resulting s...

Coding & AlgorithmsStacks & Queues
11
0
123 people solved
Mar 19, 2026
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