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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
Medium
Software EngineerSenior+

Versioned Integer Array with Snapshots and Point-in-Time Reads

Build a fixed-length array of integers that remembers its history. Every element starts at 0. You can change elements, take numbered snapshots of the ...

Coding & AlgorithmsData Structure DesignBinary Search
3
2
25 people solved
Aug 27, 2026
Deshaw logo
DeshawMicrosoftJPMorgan Chase

Also asked at JPMorgan Chase, IBM, Amazon, Dell, Google, Meta, Bloomberg, Wells Fargo, Oracle, TikTok, Uber, Salesforce

Easy
Software Engineer

Count Equal-Size Adjacent Binary Runs

Problem Return the number of nonempty substrings of s containing the same positive number of zeros and ones, with all zeros consecutive and all ones c...

Coding & AlgorithmsArrays & Strings
1
0
14 people solved
Bloomberg logo
BloombergInfosysGoogle

Also asked at Google, Microsoft, Amazon

Medium
Software Engineer

Minimize Single-Character Deletions to Equalize Two Words

Problem Return the fewest deletions needed to make word1 and word2 equal. One step deletes exactly one character from either word; insertions and repl...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
17 people solved
Optiver logo
Optiver
Medium
Software Engineer Locked

Fastest Rolling One-Kilometer Average Speed from 5-Second Distance Samples

Given the meters a runner covers in each 5-second interval, find the fastest average speed over a rolling one-kilometer stretch, defined as the shorte...

Coding & AlgorithmsTwo Pointers & Sliding Window
8
0
110 people solved
Sep 13, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Reason About and Validate Virtual Card Transactions

Reason through a virtual-card product and validate transactions from encoded card and transaction flags. The exercise combines product trade-offs with...

Software Engineering FundamentalsPayments & Ledgers
32
0
328 people solved
Jul 4, 2026
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Meta, Bloomberg, LinkedIn, Barclays

Medium
Software Engineer

Split a String into the Most Letter-Disjoint Pieces

Problem Cut s into as many consecutive nonempty parts as possible so that no letter occurs in two different parts. Concatenating the parts in order mu...

Coding & AlgorithmsGreedyArrays & Strings
1
0
11 people solved
Plaid logo
Plaid
Easy
Software Engineer

Resolve routing-number to bank mapping

You are given bank-routing data coming from one or more JSON sources. Each source provides a list of records like: `json { "routing": "026009593", "ba...

Coding & AlgorithmsData Cleaning & Wrangling
61
0
674 people solved
Feb 4, 2026
Rippling logo
Rippling
Medium
Software Engineer AI Locked

Compare Complete and Partial Poker Hands

This question evaluates algorithmic problem-solving, combinatorial reasoning about incomplete information, and the ability to encode domain-specific r...

Coding & AlgorithmsBacktracking & RecursionArrays & Strings
55
1
374 people solved
May 21, 2026
ZipHQ logo
ZipHQ
Medium
Backend Engineer Locked

Find Bugs in an LRU Cache

Find the behavioral defects in a Java LRU cache built with LinkedHashMap and provide minimal failing tests. Correct access ordering, update recency, l...

Software Engineering FundamentalsDebuggingData Structure Design
26
1
218 people solved
Jul 4, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Microsoft, Bloomberg, Anduril, Karat, Criteo, Tripadvisor, Spotify, SAP

Easy
Software Engineer

Check Whether Available Letters Can Form a Note

Check Whether Available Letters Can Form a Note Given lowercase strings ransomNote and magazine, return whether the note can be formed using letters f...

Coding & AlgorithmsArrays & Strings
0
0
10 people solved
Instacart logo
Instacart
Medium
Software Engineer Locked

Resolve a Variable Through Literal and Reference Assignments

Resolve a target variable through an acyclic chain of named assignments until reaching an integer literal, independent of definition order.

Coding & AlgorithmsGraphs
9
0
74 people solved
Sep 11, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Convert Stack Samples into Trace Events

Convert sampled root-to-leaf call stacks into a minimal sequence of start and end trace events. Use longest common prefixes between samples, close fra...

Coding & AlgorithmsStacks & QueuesArrays & Strings
15
0
266 people solved
Jul 8, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Return the Top Two Teams by Points, Goal Difference, and Tie Breakers

Rank competition teams by points, goal difference, goals scored, and an explicit index tie rule, then return the first two team indices.

Coding & AlgorithmsSorting
6
0
83 people solved
Aug 27, 2026
Bloomberg logo
Bloomberg
Medium
Software Engineer

Design a Card Deck with Shuffling, Dealing, and Five-Card Poker Comparison

Design an object-oriented playing-card system that can shuffle a deck, deal cards, and compare the strength of two five-card poker hands. Explain the ...

Software Engineering FundamentalsLow-Level Design (OOP)Math & Number Theory
4
0
57 people solved
Aug 1, 2026
Google logo
Google
Medium
Software Engineer

Count Visible People per Position When Only Someone Taller Than Both Blocks

People stand in a line, and heights[i] is the height of the person at position i. Two people can see each other if no one standing between them is tal...

Coding & AlgorithmsStacks & Queues
10
1
95 people solved
Jul 22, 2026
Disney logo
Disney
Medium
Software Engineer Locked

Implement a Set Data Structure with a Resizable Array, Then Improve It with Hashing

Coding question that asks you to implement a set without built-in set or map types, first on a resizable array and then with hashing into array indice...

Software Engineering FundamentalsData Structure Design
5
0
66 people solved
Aug 30, 2026
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Implement sequential and parallel URL requests

This question evaluates proficiency in HTTP networking, asynchronous and parallel programming (promises/futures), deduplication and order preservation...

Coding & AlgorithmsAPI Integration & HTTP ClientsConcurrency
48
0
421 people solved
Feb 11, 2026
Coupang logo
Coupang
Medium
Software Engineer Locked

Anagram Group Tracker with Add, Remove, and Largest-Group Queries: Read vs Write Trade-offs

Coding and design question: build a structure that supports adding words, removing words, and returning the current largest anagram group using only t...

Software Engineering FundamentalsData Structure DesignHeaps & Priority Queues
4
0
49 people solved
Aug 27, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, TCS, Accenture, LinkedIn, Walmart Labs, Cisco

Medium
Software Engineer

Search a Rotated Array that May Repeat Values

Problem The integer array entries was formed from a non-decreasing array by choosing a split position r and moving the prefix before r after the remai...

Coding & AlgorithmsBinary Search
0
0
11 people solved
Squarepoint logo
Squarepoint
Hard
Software Engineer

Solve two coding assessment tasks

The online assessment contained two coding problems: 1. Maximize store revenue You are given an integer array quantity of length n, where quantity[i] ...

Coding & AlgorithmsGreedyHeaps & Priority Queues
46
0
504 people solved
Feb 23, 2026
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