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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
639
Companies
980
Updated
11.10.2026
639 Questions 980 Companies11.10.2026
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
AmazonGoogleMicrosoft

Also asked at Microsoft, WeRide, Meta

Medium
Software Engineer

Find a Same-Letter Loop in a Grid

Problem Given a rectangular lowercase-character grid, decide whether four-directional moves can form a cycle of at least four cells, all carrying the ...

Coding & AlgorithmsGrids & MatricesGraphs
1
0
11 people solved
Chalk logo
Chalk
Hard
Software Engineer

Implement Python feature and resolver metaprogramming

You are given a skeleton for a small Python "feature" framework. The goal is to use metaprogramming to: 1. Parse type-annotated classes into Feature o...

Coding & AlgorithmsProgramming Languages
117
0
853 people solved
Sep 27, 2025
Palantir logo
Palantir
Medium
Software Engineer

Solve two algorithm problems from a menu

Choose two problems from an algorithms menu (arrays, strings, hash maps, graphs). For each: 1) state clarifying assumptions, 2) implement a correct so...

Coding & AlgorithmsArrays & StringsGraphs
31
0
302 people solved
Jul 26, 2025
Furtherai logo
Furtherai
Medium
Machine Learning EngineerSenior+

Build a Create/Execute Workflow Service With an AI Assistant: Plan, Implement, Verify

In a 45-minute coding session you are expected to use an AI coding assistant. With it, build a small service that creates and executes workflows. The ...

Software Engineering FundamentalsJob Scheduling & WorkflowsAI-Assisted Development
1
0
17 people solved
Aug 30, 2026
Meta logo
Meta
Medium
Software Engineer Locked

Answer Exact Island-Size Existence Queries

Preprocess a binary grid so exact island-size queries can be answered in average O(1) time. Traverse each four-connected island once, store its comple...

Coding & AlgorithmsGrids & MatricesGraphs
13
0
174 people solved
Aug 8, 2026
Apple logo
Apple
Hard
Software Engineer

Find the Extra Edge

You are given an undirected graph that started as a tree with n nodes labeled from 1 to n. One additional edge was then added between two different ex...

Coding & AlgorithmsGraphs
27
1
191 people solved
Apr 14, 2026
Google logo
Google
Hard
Machine Learning Engineer Locked

Solve several streaming, DAG, and DP tasks

This multi-part question evaluates proficiency in streaming and online algorithms, DAG-based scheduling and parallelism reasoning, and constrained dyn...

Coding & AlgorithmsGraphsDynamic Programming
24
2
274 people solved
Jan 6, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Decide Whether an Undirected Graph Can Be Colored with Three Colors

Given an undirected graph, decide whether every node can be given one of three colors so that no edge connects two nodes of the same color. Function S...

Coding & AlgorithmsGraphsBacktracking & Recursion
1
0
30 people solved
Apr 28, 2026
Two Sigma logo
Two Sigma
Hard
Software Engineer

Compute maximum currency exchange rate

Compute maximum currency exchange rate You are given a set of currencies and the direct exchange rates between some pairs of them. Each direct exchang...

Coding & AlgorithmsGraphsMath & Number Theory
36
0
303 people solved
Jul 20, 2025
Google logo
Google
Hard
Software Engineer

Apply Range Overwrite Queries

You are given an integer array nums of length n and a list of range-assignment queries. Each query is a tuple (left, right, value), where left and rig...

Coding & AlgorithmsTrees
37
2
393 people solved
Feb 25, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Find Shortest Grid Path

You are given an m x n grid where 0 represents an open cell and 1 represents a blocked cell. You are also given a start cell (sr, sc) and a target cel...

Coding & AlgorithmsGrids & MatricesGraphs
29
0
226 people solved
Feb 11, 2026
Two Sigma logo
Two Sigma
Medium
Software Engineer

Solve capital selection and grid escape

Solve capital selection and grid escape Implement two functions for algorithmic practice: 1) MaximizeCapitalAfterProjects(k, initialCapital, requiredC...

Coding & AlgorithmsHeaps & Priority QueuesGreedy
21
0
281 people solved
Aug 9, 2025
Amazon logo
AmazonGoogleGoldman SachsBloomberg

Also asked at Goldman Sachs, Bloomberg

Medium
Software Engineer

Find a Same-Direction Cycle in a Circular Array

Find a Same-Direction Cycle in a Circular Array You are given a circular array nums of nonzero integers. From index i, move forward by nums[i] positio...

Coding & AlgorithmsGraphsTwo Pointers & Sliding Window
0
0
4 people solved
Databricks logo
Databricks
Medium
Software Engineer

Solve graph path, interval deletion, and robbery

Solve graph path, interval deletion, and robbery Part A — Optimal path with transport modes: You are given a directed weighted graph of a city. Each e...

Coding & AlgorithmsGraphsDynamic Programming
29
0
440 people solved
Aug 9, 2025
Snowflake logo
Snowflake
Medium
Software Engineer

Implement topological sort and tree boundary traversal

You are given two separate coding tasks. Problem A — Order courses with prerequisites You have n courses labeled 0..n-1 and a list of prerequisite pai...

Coding & AlgorithmsGraphsTrees
36
0
634 people solved
Feb 12, 2026
Salesforce logo
SalesforceAgoda
Medium
Software Engineer

Maximum Team Size from Overlapping Availability

Maximum Team Size from Overlapping Availability You are given two arrays, startTime and endTime, each of length n. Employee i is available throughout ...

Coding & AlgorithmsIntervals & SchedulingBinary Search
1
0
15 people solved
Fuse Energy logo
Fuse Energy
Medium
Software Engineer

Implement simplified Excel with SET/GET/SUM

Implement a simplified in-memory spreadsheet that supports three operations: SET, GET, and SUM, similar to basic Excel functionality. Assumptions and ...

Coding & AlgorithmsData Structure DesignGraphs
76
0
515 people solved
Dec 8, 2025
OpenAI logo
OpenAI
Medium
Software Engineer Locked

Implement Social Graph Snapshot Queries

This question evaluates understanding of graph data structures, query-efficient indexing, and algorithmic trade-offs for static directed graphs, inclu...

Coding & AlgorithmsGraphsData Structure Design
12
0
153 people solved
Apr 13, 2026
Amazon logo
AmazonJuspayGoogleBloomberg

Also asked at Google, Bloomberg

Medium
Software Engineer

Choose a Shared Reachable Node Minimizing the Worse Distance

Problem A directed graph has nodes 0 through n - 1, each with at most one outgoing edge. edges[i] is its destination, or -1 if there is none. Find a n...

Coding & AlgorithmsGraphs
1
0
8 people solved
Rippling logo
Rippling
Medium
Software Engineer

Convert amounts between multiple currencies

You are given a set of direct currency exchange rates and a list of queries. Each exchange rate gives you how to convert from one currency to another....

Coding & AlgorithmsGraphs
63
0
530 people solved
Dec 8, 2025
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