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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
18.6k
Companies
980
Updated
11.12.2026
18.6k 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
Aiprise logo
Aiprise
Easy
Software Engineer

Evaluate an Integer Expression String with +, -, * and Nested Parentheses

Write a function that evaluates an arithmetic expression given as a string and returns its integer value. The expression contains non-negative integer...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
19 people solved
Oct 25, 2026
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Infosys, Meta, TCS, Apple, TikTok, Oracle, Walmart Labs, Goldman Sachs, IBM, Paytm, Uber, Okta, NVIDIA, PayPal

Medium
Software Engineer

Measure the Longest Consecutive Value Run in Linear Time

Problem Return the length of the longest run of consecutive integer values present in an unsorted array. The values need not be adjacent in the input....

Coding & AlgorithmsArrays & Strings
6
1
38 people solved
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, TCS, Microsoft, Meta, EPAM Systems, Yandex, Squarespace, Apple, HubSpot, Zoho, Goldman Sachs, NVIDIA, HCL, Infosys, Cisco, Cognizant

Easy
Software Engineer

Merge Sorted Values into an Existing Array Buffer

Problem Merge two sorted integer sequences into nums1. Its first m positions contain its actual sequence, followed by n zero-filled spare positions. T...

Coding & AlgorithmsTwo Pointers & Sliding Window
4
0
32 people solved
Google logo
Google
Medium
Software Engineer

Find the nearest common manager of K employees in a reporting tree

A company's reporting structure forms a tree. Employees are numbered 0 to n - 1. Every employee except one has exactly one direct manager; the remaini...

Coding & AlgorithmsTrees
13
0
228 people solved
Sep 21, 2026
Airwallex logo
Airwallex
Medium
Backend Engineer

AI-Assisted Build: Tic-Tac-Toe Logic Grown Into a Frontend and Backend App

In this round you may use AI coding tools throughout: a chat assistant, in-editor completion or a coding agent. Your task is to build a working two-pl...

Software Engineering FundamentalsAI-Assisted DevelopmentSimulation & State Machines
3
0
56 people solved
Sep 16, 2026
DoorDash logo
DoorDash
Medium
Software Engineer

Resolve a Technical Disagreement

Describe a technical disagreement you had and how you resolved it. Explain both positions, the evidence or constraints that mattered, and how the team...

Behavioral & LeadershipConflict & CollaborationAmbiguity & Decision Making
0
0
16 people solved
Oct 24, 2026
Amazon logo
AmazonGoogleMeesho

Also asked at Meesho, Microsoft, Bloomberg, Infosys, Flipkart, Salesforce, Meta, Zulily, Zoho, TikTok, Atlassian, eBay, ServiceNow, PhonePe, HashedIn, TomTom

Medium
Software Engineer

Reach the Last Index in the Fewest Jumps

Problem You start at index 0 of the integer array jumps. From index i, choose an integer distance d and move to index i + d, provided that: - 0 <= d <...

Coding & AlgorithmsGreedyDynamic Programming
3
0
29 people solved
Figma logo
Figma
Hard
Software EngineerSenior+

Node Reachability: Directed Paths, Undirected Connectivity, and a Removed Direct Edge

A graph has n nodes numbered 0 to n - 1 and a list of edges. The interview built the problem up in three steps: 1. With the edges read as directed, ca...

Coding & AlgorithmsGraphs
1
0
11 people solved
Nov 6, 2026
Citadel Securities logo
Citadel Securities
Medium
Software Engineer

In-Memory Order Book with Price-Time Order, Level Aggregation and Order Cancel

Implement an in-memory order book for a single instrument. Orders arrive one at a time, each with a unique order id, a side (bid or ask), a price and ...

Software Engineering FundamentalsData Structure DesignTrading Systems
17
0
152 people solved
Sep 11, 2026
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Answer Policy Violation Log Queries

Answer five deterministic query types over a timestamp-sorted policy violation log, including distinct-post and raw-record counts. The prompt fixes in...

Coding & Algorithms
50
0
370 people solved
Sep 4, 2026
Mercor logo
Mercor
Medium
Machine Learning Engineer

Decide whether every car can park given preferred spots and forward-only overflow

A one-way street has n parking spots in a row, numbered 0 to n - 1 in the direction of travel. Cars arrive one at a time, in the order given by prefer...

Coding & AlgorithmsSimulation & State Machines
36
0
243 people solved
Sep 25, 2026
J.P. Morgan logo
J.P. Morgan
Medium
Software Engineer

Split Modules Across Three Servers to Maximize the Minimum Deployment Difficulty

You are given an integer array difficulty of length n, where difficulty[i] is the difficulty of the i-th software module. Assign the modules to three ...

Coding & AlgorithmsGreedySorting
9
0
126 people solved
Aug 31, 2026
Palantir logo
Palantir
Medium
Software EngineerIntern Locked

Optimize Coupon Selection Under a Twenty-Point Budget

Optimize item and category coupon activation under a twenty-point budget while accounting for stacking, capped savings, rounding, and multiple optima.

Software Engineering FundamentalsDynamic ProgrammingBacktracking & Recursion
24
1
385 people solved
Aug 27, 2026
Roblox logo
Roblox
Medium
Software Engineer

Most frequent call stack per thread from enter/exit logs, deeper stacks win ties

A program writes a log of function calls. Each log line records that a thread entered or exited a function. At any moment, each thread has its own cal...

Coding & AlgorithmsStacks & Queues
12
1
118 people solved
Aug 29, 2026
Apple logo
Apple
Medium
Software EngineerSenior+

Highest-rated food per cuisine under rating updates with a lexicographic tie-break

A rating tracker is created from a list of foods. Each food belongs to one cuisine and has an integer rating. The tracker then processes a sequence of...

Coding & AlgorithmsData Structure DesignHeaps & Priority Queues
1
0
13 people solved
Oct 25, 2026
Capital One logo
Capital One
Medium
Software EngineerNew Grad

Count Subarrays Whose Step-by-Step Changes Match an Up, Flat, Down Pattern

You are given an integer array nums of length n and an array pattern of length m whose values are each -1, 0 or 1. Each pattern value describes the re...

Coding & AlgorithmsArrays & Strings
14
0
176 people solved
Sep 27, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Max Consecutive Uptime After Repairing One Window of Exactly k Log Entries

A server's health log is a string of 0s and 1s, one character per time step: 1 means the server was up and running normally, and 0 means it had failed...

Coding & AlgorithmsTwo Pointers & Sliding Window
2
0
14 people solved
Oct 29, 2026
Stripe logo
Stripe
Hard
Software EngineerNew Grad

Fix Three Mako Template Bugs: AST Arg Visitor, Directory Lookup, Comment-Only Blocks

You are given a copy of Mako, the open-source Python template library, into which three defects have been introduced, together with the library's test...

Software Engineering FundamentalsDebuggingParsing & Interpreters
18
0
152 people solved
Aug 14, 2026
Databricks logo
Databricks
Medium
Software EngineerNew Grad

Implement Column Pruning and Filter Pushdown on a Query Plan Tree

A query engine represents a SQL query as a tree of plan nodes. You are handed such a tree and asked to "optimize" it. The interviewer does not say whi...

Software Engineering FundamentalsDatabase InternalsTrees
22
1
160 people solved
Sep 11, 2026
Atlassian logo
Atlassian
Medium
Frontend EngineerSenior+

Build a Social Feed List in HTML/CSS, Then Render It from a Mock API

A front-end screen asks you to build, in two short timed stages, a feed that looks like a typical Twitter-style timeline: a vertical list of posts, ea...

Software Engineering FundamentalsCSS & LayoutJavaScript & TypeScript
8
0
106 people solved
Sep 12, 2026
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