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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
Microsoft logo
Microsoft
Medium
Software EngineerIntern

Minutes Until Rot Spreads to Every Fresh Cell in a Grid

A rectangular grid shows the cells of a crate of fruit. Each cell is empty, holds a fresh piece of fruit, or holds a rotten piece. Rot spreads once pe...

Coding & AlgorithmsGrids & Matrices
1
0
9 people solved
Aug 11, 2026
Apple logo
Apple
Medium
Software Engineer

Solve 15 common interview problems

Below are fifteen independent coding problems commonly discussed in software engineering interviews. For each one, write an efficient algorithm and be...

Coding & AlgorithmsArrays & StringsGraphs
22
1
218 people solved
Jan 27, 2026
Google logo
Google
Easy
Software Engineer AI Locked

Find Feature Activation Order

This question evaluates graph-algorithms and dependency-resolution skills, including reasoning about prerequisite relationships, ordering constraints,...

Coding & AlgorithmsGraphs
27
0
209 people solved
Jan 26, 2026
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Traverse All Reachable Pages With Parallel BFS

Return every web page reachable from a starting page in stable breadth-first discovery order, including the start exactly once. Handle cycles, duplica...

Coding & AlgorithmsGraphsStacks & Queues
19
0
178 people solved
Jul 11, 2026
Google logo
Google
Medium
Software EngineerNew Grad Locked

Match Tagged Problems to Skilled Programmers at Scale

Model tagged problems and skilled programmers as a bipartite matching problem, then extend the design to distributed and streaming workloads. The exer...

System DesignGraphsDistributed Coordination
18
0
187 people solved
Jun 17, 2026
Google logo
Google
Easy
Software Engineer

Find largest group of two-digit numbers sharing digits

You are given an integer array A of length n (1 <= n <= 100). Each element is a two-digit number (e.g., from 10 to 99). Two numbers are considered con...

Coding & AlgorithmsGraphs
33
0
281 people solved
Dec 5, 2025
Amazon logo
AmazonGoogleMetaMicrosoft

Also asked at Meta, Microsoft

Hard
Software Engineer

Find the Shortest Walk Visiting Every Vertex

Problem Given a connected undirected adjacency-list graph, return the minimum number of edges in a walk visiting every vertex. You may start and end a...

Coding & AlgorithmsGraphsBit Manipulation
0
0
7 people solved
Nooks logo
Nooks
Medium
Software Engineer

Implement a BFS web crawler

A web crawler starts from a URL and explores reachable pages level by level. You are given: - start_url: string - An interface fetch_links(url: string...

Coding & AlgorithmsGraphs
22
0
216 people solved
Feb 28, 2026
Google logo
GoogleDeshawCisco

Also asked at Cisco, Amazon, TikTok, Databricks, Meta, Pinterest, Adobe, Bloomberg, Uber, Snapchat, AppFolio

Hard
Software Engineer

Shortest Four-Direction Route With an Obstacle Budget

Problem In the binary grid, 0 is empty and 1 is an obstacle. Starting at the empty top-left cell, move up,down,left or right one cell per step. You ma...

Coding & AlgorithmsGrids & MatricesGraphs
0
0
8 people solved
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
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
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
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
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
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
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
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