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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
509
Companies
980
Updated
11.08.2026
509 Questions 980 Companies11.08.2026
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
Mastercard logo
MastercardInMobiIntuit

Also asked at Intuit, Amazon, Salesforce, Google, Bloomberg, NetEase

Hard
Software Engineer

Minimize Overwriting Turns of a Single-Character Printer

Problem A printer turn chooses one contiguous interval and writes the same chosen character throughout it, overwriting any existing characters. Return...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
13 people solved
ByteDance logo
ByteDance
Medium
Software Engineer

Maximum score from removing every token in a row, scored by neighbor products

You are given a row of n tokens, where token i carries the integer value nums[i]. You must remove every token, one at a time, in any order you choose....

Coding & AlgorithmsDynamic Programming
1
0
15 people solved
Sep 11, 2026
Apple logo
AppleInfosysGoogle

Also asked at Google, Amazon, Meta

Medium
Software Engineer

Smallest Residue From Freely Chosen Stone Smashes

Problem You may choose any two remaining stones to smash. Equal weights disappear; weights x<y become a single stone of weight y-x. Continue until at ...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
12 people solved
Amazon logo
AmazonGoogleOracle

Also asked at Oracle, TikTok, Bloomberg, Meta, Microsoft, Flipkart, HTC, Apple, Stripe, Uber, Snowflake, Intuit, Snapchat, Expedia

Medium
Software Engineer

Find the Cheapest Flight Route with a Stop Limit

Problem Each flights row [from,to,price] is a directed flight. Return the cheapest total fare from src to dst using at most k intermediate stops, or -...

Coding & AlgorithmsGraphsDynamic Programming
1
0
14 people solved
Google logo
GoogleBloombergMicrosoft

Also asked at Microsoft, Amazon, Meta, NVIDIA, Apple, Qualcomm

Easy
Software Engineer

Count the Set Bits for Every Value up to a Limit

Count the Set Bits for Every Value up to a Limit Given a nonnegative integer n, return an array ans of length n+1. For every integer i from 0 through ...

Coding & AlgorithmsBit ManipulationDynamic Programming
1
0
9 people solved
Accenture logo
Accenture
Medium
Software Engineer

Find minimum racks for 2D bin packing

You are given N machines. Machine i requires two types of resources: (x_i, y_i). Each rack has capacity (A, B) for the two resources, and a machine mu...

Coding & AlgorithmsDynamic Programming
122
0
989 people solved
Oct 7, 2025
Robinhood logo
Robinhood
Medium
Software EngineerSenior+ Locked

Define and Calculate Employee Referral Counts

Compute a referral count for every employee from a list of referrer and referred pairs. The question tests defining direct versus downstream counts, h...

Software Engineering FundamentalsGraphs
9
1
130 people solved
Sep 4, 2026
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Maximize Points by Deleting Values and Their Neighbors

Maximize the score from removing integer occurrences when each choice also removes neighboring values, with duplicates and a sparse value range.

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
12
1
87 people solved
Aug 25, 2026
ByteDance logo
ByteDance
Medium
Software Engineer

Maximum total weight of graph nodes with no two adjacent

You are given an undirected graph whose nodes carry positive weights. Choose a set of nodes such that no two chosen nodes are joined by an edge, and r...

Coding & AlgorithmsGraphsBacktracking & Recursion
1
0
15 people solved
Sep 11, 2026
Meta logo
MetaTCSMicrosoft

Also asked at Microsoft, Bloomberg, Amazon, Google, HTC, Infosys, Apple, Cognizant, Accenture, Spotify, Zoho, Wix, NVIDIA

Easy
Software Engineer

Compute the Fibonacci Value at an Index

Problem The sequence starts with F(0)=0 and F(1)=1. For n greater than one, F(n)=F(n-1)+F(n-2). Return F(n). `cpp class Solution { public: int fib...

Coding & AlgorithmsDynamic Programming
1
0
17 people solved
Grammarly logo
GrammarlyGoogleAmazon

Also asked at Amazon, Microsoft, JPMorgan Chase, Meta

Medium
Software Engineer

Best Value from Up to Two Separate Events

Problem Each event has a start time, an end time and a value. Choose at most two events to attend, with no overlap between their inclusive time interv...

Coding & AlgorithmsIntervals & SchedulingSorting
1
0
17 people solved
Infosys logo
InfosysMicrosoft
Hard
Software Engineer

Compute the Optimal Prefix-Merging Game Difference

Problem Alice and Bob alternate with Alice first. With more than one stone remaining, choose at least two leftmost stones, add their sum to the curren...

Coding & AlgorithmsDynamic Programming
1
0
14 people solved
Optiver logo
Optiver
Hard
Software EngineerIntern

Optimize flight and cargo bookings for profit

OptiCargo: make the booking algorithm profitable You are given two streams/lists: - Flights you may attempt to book. Each flight has: - flight_id ...

Coding & AlgorithmsDynamic ProgrammingData Structure Design
277
1
2221 people solved
Dec 5, 2025
Reddit logo
Reddit
Medium
Software Engineer

Filter Comment Subtrees and Analyze Score-Based Retention

Comments form a parent-child forest and each comment is categorized as dog or cat. Given a viewer preference, exclude every opposite-category comment ...

Coding & AlgorithmsTreesDynamic Programming
2
0
22 people solved
Jul 13, 2026
Infosys logo
InfosysGoogleAmazon

Also asked at Amazon, Bloomberg, TikTok

Medium
Software Engineer

Best Total After Bounded Block Replacement

Problem Split arr into nonempty contiguous blocks, each containing at most k elements. Replace every element in a block by that block's largest origin...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
11 people solved
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Deshaw, MathWorks, Meta, Goldman Sachs, Bloomberg, eBay, Zeta Global, Uber, DP world, Nutanix, 6Sense

Hard
Software Engineer

Minimize Cameras That Cover a Tree Node and Its Neighbors

Problem A camera installed on a tree node monitors that node, its parent if present, and its immediate children. Return the fewest cameras needed to c...

Coding & AlgorithmsTreesDynamic Programming
1
0
14 people solved
Uber logo
UberEthosLinkedInGameskraft

Also asked at LinkedIn, Gameskraft

Hard
Software Engineer

Maximize Retained Tree Edge Weight with a Degree Limit

Problem You are given an undirected tree with n nodes labeled 0 through n - 1. Each row of edges is [u, v, w], describing an edge of weight w between ...

Coding & AlgorithmsTreesDynamic Programming
0
0
18 people solved
Google logo
GoogleAmazonMeta

Also asked at Meta, Citadel, CoinDCX

Medium
Software Engineer

Count Ordered Dice Outcomes With a Given Total

Problem Roll n dice, each with faces 1 through k. Count ordered outcomes whose sum equals target, and return the count modulo 1000000007. Different ch...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
13 people solved
Infosys logo
InfosysBloombergSquarepoint

Also asked at Squarepoint, Microsoft, Publicis Sapient, Oracle

Medium
Software Engineer

Cross a Three-Lane Road with Few Side Jumps

Problem At point zero on a three-lane road, a frog starts in lane 2. obstacles[i] is zero for no obstacle or names the one blocked lane at point i. Mo...

Coding & AlgorithmsDynamic Programming
1
0
16 people solved
InMobi logo
InMobiBNY MellonGoogle

Also asked at Google, Harness, Amazon, Uber, Microsoft, PhonePe, Meta, Flipkart, Goldman Sachs

Hard
Software Engineer

Collect Cherries on an Outward and Return Trip

Problem On the square grid, -1 blocks movement, 0 is empty and 1 holds one cherry. Travel from the upper-left corner to the lower-right using right/do...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
13 people solved
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