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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
Google logo
GoogleBloombergAmazon

Also asked at Amazon, Meta, Microsoft, Snowflake, Nutanix, Waymo

Medium
Software Engineer

Minimize the Steepest Step on a Grid Route

Problem Travel from the top-left to the bottom-right cell of heights, moving only between side-adjacent cells. The effort of a route is the largest ab...

Coding & AlgorithmsGraphsGrids & Matrices
1
0
11 people solved
Uber logo
Uber
Medium
Software Engineer

Robot Grid Route with Charging Cells: Fewest Charges, Then Battery, Then Moves

A robot must travel across a 2D grid from a starting cell to a destination cell. Each cell of the grid is one of these characters: - S: the starting c...

Coding & AlgorithmsGraphsGrids & Matrices
3
0
45 people solved
Jun 12, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Count the Separate Land Regions in a Binary Grid Map

You are given a rectangular map as a grid of cells, where 1 marks land and 0 marks water. Two land cells belong to the same region when they share an ...

Coding & AlgorithmsGrids & Matrices
1
2
22 people solved
Aug 23, 2026
Google logo
GoogleAmazonUber

Also asked at Uber, TikTok, Meta, Microsoft, Nutanix, PayPay

Medium
Software Engineer

Connect Planar Points at Minimum Manhattan Cost

Problem Each entry of points is an integer coordinate pair. An edge between two points costs the sum of their horizontal and vertical distances. Selec...

Coding & AlgorithmsGraphsGreedy
1
0
10 people solved
Google logo
Google
Medium
Software Engineer

Recommend top-K movies from similarity graph

Movie Recommendation: Top K You are building a simple movie recommendation feature. Input - A set of movies 0..(M-1). - An undirected similarity graph...

Coding & AlgorithmsGraphs
103
3
820 people solved
Dec 15, 2025
Whatnot logo
WhatnotGoogleBridgewater

Also asked at Bridgewater, Amazon, Meta, Bloomberg

Medium
Software Engineer

Count Digit Strings Produced by Knight Moves on a Phone Pad

Problem The numeric keypad has rows 1 2 3, 4 5 6, 7 8 9, and a final row with0 in its middle column; the other two final-row positions are unusable. P...

Coding & AlgorithmsDynamic ProgrammingGraphs
1
1
23 people solved
Faire logo
Faire
Medium
Software Engineer

Max inherited discount and discount-source audit in a category DAG

An e-commerce platform organizes product categories in a hierarchy that is not a strict tree but a directed acyclic graph (DAG): a category can belong...

Software Engineering FundamentalsGraphs
2
0
19 people solved
Aug 1, 2026
Harvey logo
Harvey
Medium
Software Engineer

Implement a Formula Spreadsheet

Design and implement a small in-memory spreadsheet. The spreadsheet must support cell labels such as A1 and B10, where a label consists of uppercase l...

Coding & AlgorithmsData Structure DesignGraphs
23
1
306 people solved
Apr 11, 2026
Google logo
Google
Medium
Software EngineerSenior+ Locked

Find Paths Across a Weighted Binary Grid

Solve three top-to-bottom path tasks on a blocked grid: reachability, deterministic enumeration of simple paths, and a minimum-cost weighted path. Add...

Coding & AlgorithmsGrids & MatricesGraphs
43
2
639 people solved
Jul 17, 2026
InMobi logo
InMobiAmazonGoogle

Also asked at Google, Microsoft, Bloomberg, Flipkart, Walmart Labs, ServiceNow, Akuna Capital, KLA

Hard
Software Engineer

Edges Whose Removal Disconnects a Network

Problem The connected undirected graph has n labeled servers 0 through n-1, with no self-loops or repeated connections. Return every edge whose remova...

Coding & AlgorithmsGraphs
1
0
9 people solved
Amazon logo
AmazonPinterestGoogle

Also asked at Google, Bloomberg, Uber, Snapchat, TikTok, Microsoft, PhonePe, Info Edge, BitGo, Meta, Oracle, Walmart Labs, Salesforce

Hard
Software Engineer

Minimize Bus Boardings between Two Stops

Problem Each routes[i] lists the stops visited forever in a cycle by bus i. Start at source on no bus and travel only by riding buses, transferring at...

Coding & AlgorithmsGraphs
1
0
11 people solved
Uber logo
Uber
Medium
Software Engineer

Solve these algorithmic problems

You are given the following independent coding tasks. For each task, design an algorithm and implement a function that returns the requested output. -...

Coding & AlgorithmsDynamic ProgrammingBinary Search
77
2
620 people solved
Feb 11, 2026
Digitalocean logo
Digitalocean
Medium
Software Engineer Locked

Specify House-Selection Constraints Before Choosing a Robbery Dynamic Program

Clarify house layout and selection conflicts, derive a conditional linear dynamic program, and explain how circular or graph constraints change it.

Software Engineering FundamentalsDynamic Programming
4
0
34 people solved
Sep 16, 2026
Applied Intuition logo
Applied Intuition
Medium
Software Engineer

Design Parsing Boundaries for Interdependent Message Types

A protocol-buffer-related parsing task includes dependencies on newly defined message types. Explain which input and output details you would clarify,...

Software Engineering FundamentalsParsing & InterpretersProgramming Languages
5
0
68 people solved
Jun 17, 2026
IBM logo
IBMPayPal
Medium
Software Engineer

Count Pythagorean Distance Nodes in a Tree

Problem You are given an undirected tree with n nodes numbered 0..n-1, its n-1 edges, and three pairwise distinct target nodes x, y, and z. Distance i...

Coding & AlgorithmsTreesMath & Number Theory
1
0
11 people solved
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Design Instagram (Feed, Photos, and Friend Recommendations)

This question evaluates a candidate's ability to design a large-scale, read-heavy social media backend, covering data modeling for follow graphs, medi...

System DesignSearch & Feed SystemsCaching
21
0
219 people solved
Jun 23, 2026
Ramp logo
Ramp
Medium
Software Engineer Locked

Implement Spreadsheet Cells with Dependencies

This Ramp software engineering question tests spreadsheet cell dependencies, recalculation order, and cycle handling. It is useful preparation for int...

Software Engineering FundamentalsData Structure DesignGraphs
12
0
240 people solved
Jul 2, 2026
Amazon logo
Amazon
Medium
Software Engineer Locked

Order Dependent Tasks and Identify Work to Rerun

Return any valid dependency order, detect cycles, and identify transitive reruns with a complete topological and reachability solution and order-indep...

Coding & AlgorithmsGraphs
6
1
74 people solved
Sep 14, 2026
Scale AI logo
Scale AI
Hard
Software Engineer Locked

Implement Dependency-Aware Task Scheduler

This question evaluates skills in designing and implementing data structures and algorithms for priority scheduling, dependency resolution, and dynami...

Coding & AlgorithmsGraphsHeaps & Priority Queues
37
0
269 people solved
May 16, 2026
Goldman Sachs logo
Goldman SachsMetaAmazon

Also asked at Amazon, Bloomberg, PhonePe, Uber, Google, IBM

Medium
Software Engineer

Smallest Array Reachable Through Value-Limited Swaps

Smallest Array Reachable Through Value-Limited Swaps You are given a 0-indexed array of positive integers nums and a positive integer limit. In one op...

Coding & AlgorithmsSortingGraphs
0
0
13 people solved
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