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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
Jane Street logo
Jane Street
Hard
Software Engineer Locked

Optimize a Two-Box Place-or-Take Game

A one-player game has two opaque boxes and lasts exactly 100 turns. Explain the assumptions and derivation clearly, check edge cases, and show how the...

Statistics & MathPuzzles & Brainteasers
77
0
661 people solved
Aug 3, 2026
Spotify logo
Spotify
Hard
Software Engineer

Assign Distinct Chargers to Vehicles with Minimum Total Distance

On a one-dimensional line, vehicles and chargers have integer positions. Assign every vehicle to a distinct charger so that the sum of absolute drivin...

Coding & AlgorithmsDynamic ProgrammingSorting
0
0
10 people solved
Oct 18, 2026
ServiceNow logo
ServiceNowGoogleOracle
Hard
Software Engineer

Count Fixed-Length Playlists That Use Every Song with a Replay Gap

Problem Create an ordered playlist of length goal from n distinct songs. Every song must appear at least once. After a song is played, at least k othe...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
22 people solved
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg, Grab, Pinterest, TikTok, Datadog, Uber, PayPal, Oracle, Goldman Sachs, Walmart Labs, Intuit, Infosys

Medium
Software Engineer

Find the Fewest Coins Needed for an Amount

Find the Fewest Coins Needed for an Amount Given positive coin denominations coins and a nonnegative integer amount, return the fewest coins whose val...

Coding & AlgorithmsDynamic Programming
1
0
14 people solved
Google logo
Google
Medium
Software Engineer

Longest Non-Decreasing Subarray After One Replacement

Given an integer array nums, return the maximum length of a contiguous non-decreasing subarray obtainable after changing at most one array element to ...

Coding & AlgorithmsArrays & StringsDynamic Programming
12
1
78 people solved
Aug 26, 2026
Apple logo
AppleGoogleAmazon

Also asked at Amazon, Meta, Microsoft, Bloomberg, Visa, Salesforce, DoorDash, ByteDance, TikTok, SpaceXAI, Infosys, TCS, Morgan Stanley, Walmart Labs, Cisco

Medium
Software Engineer

Length of a Longest Shared Subsequence

Problem Return the maximum length of a sequence appearing in both text1 and text2 after deleting zero or more characters without reordering those left...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
4
0
28 people solved
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, Goldman Sachs, Infosys, NVIDIA, Media.net, Snowflake, TCS, Rakuten, TikTok, Walmart Labs, Zoho, Zopsmart, Samsung, Visa, Apple, Yandex, Oracle, ServiceNow

Hard
Software Engineer

Measure Rainwater Held Between Bars

Problem The array heights describes a row of adjacent vertical bars on level ground. Bar i has height heights[i], and every bar is one unit wide. Retu...

Coding & AlgorithmsTwo Pointers & Sliding WindowDynamic Programming
0
0
13 people solved
Roblox logo
RobloxDeshaw
Hard
Software Engineer

Count Distinct Preferred-Hat Assignments

Problem There are n people and hat labels 1..40. Person i must receive one label in hats[i], and no label may be assigned to two people. Count the ass...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
1
0
24 people solved
Waymo logo
WaymoGoogleAmazon

Also asked at Amazon, UnifyApps, Meta, Bloomberg, PhonePe, Microsoft, Cisco

Medium
Software Engineer Locked

End-Picking Number Game: Can the First Player Win Under Optimal Play?

Two players alternately take a number from either end of a row and add it to their score; decide whether the first player can finish with at least as ...

Coding & AlgorithmsDynamic Programming
7
0
66 people solved
Amazon logo
AmazonMicrosoftGoogle

Also asked at Google, Bloomberg, Zoho, Meta, Coupang, Infosys, Walmart Labs, Oracle, Deshaw, Atlassian, Instacart

Hard
Software Engineer

Match a Whole String with Wildcards

Problem Return whether the pattern mask matches the whole string text under these wildcard rules: - A lowercase letter in mask matches the same letter...

Coding & AlgorithmsString AlgorithmsDynamic Programming
1
0
13 people solved
Infosys logo
InfosysGoogleApple

Also asked at Apple, Microsoft, Amazon, TikTok, Citadel

Medium
Software Engineer

Trade Repeatedly with a Fee per Completed Transaction

Problem Given daily prices and a fee, maximize total profit from any number of completed buy/sell transactions. Hold at most one share at a time and s...

Coding & AlgorithmsDynamic Programming
1
0
17 people solved
SIG (Susquehanna) logo
SIG (Susquehanna)
Medium
Quantitative Trader

Expected Spins of an Unequal Spinner to Land in K Distinct Regions

A spinner has $N$ regions. Each spin lands in region $i$ with probability $p_i$, independently of all other spins, where $p_1 + p_2 + \dots + p_N = 1$...

Statistics & MathProbabilityDynamic Programming
3
0
36 people solved
Sep 19, 2026
Google logo
GoogleInfosysVisa

Also asked at Visa, Amazon, EPAM Systems, DoorDash, Meta, Microsoft, TikTok, Duolingo, Bloomberg, Adobe, Apple, Salesforce, Nutanix

Hard
Software Engineer

Find the Longest Strictly Increasing Cardinal Matrix Path

Problem Return the greatest number of cells in a strictly increasing matrix path. Moves are only up, down, left and right inside the matrix; no diagon...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
17 people solved
Google logo
GoogleMicrosoftAmazon

Also asked at Amazon, Turing, Bloomberg, Meta, Visa, Paytm

Medium
Software Engineer

Generate the One-Based Sequence of Ugly Numbers

Problem Return the nth positive integer whose prime factors are limited to 2, 3 and 5. The first such integer is 1. Preserve the original int nthUglyN...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
14 people solved
Google logo
Google
Medium
Software Engineer

Shortest Path, Nodes on Any Shortest Path, and Whether Alice Can Evade Bob

You are given an undirected, unweighted graph with n nodes, numbered 0 to n - 1, and a list of edges. Alice stands at node a and needs to reach a targ...

Software Engineering FundamentalsGraphs
9
0
86 people solved
Sep 16, 2026
Akuna Capital logo
Akuna Capital
Medium
Quantitative ResearcherIntern

Compute an Exact Head Count Probability with Dynamic Programming

A biased coin has probability 0.7 of heads and 0.3 of tails on each independent toss. Compute the probability of exactly five heads in ten tosses, the...

Coding & AlgorithmsProbabilityDynamic Programming
1
0
23 people solved
Aug 30, 2026
Imbue logo
Imbue
Hard
Software Engineer

Max Score of an Alternating Left-Right Walk Over a Row of Signed Cells

A row of n cells holds integer values, some of which may be negative. A token starts on the leftmost cell with a score of 0. You make at most k moves....

Coding & AlgorithmsDynamic Programming
3
0
21 people solved
Oct 6, 2026
Visa logo
Visa
Medium
Software Engineer

Longest Strictly Rising Four-Direction Walk in an Integer Grid

Given a grid of non-negative integers with m rows and n columns, return the number of cells on the longest walk whose values strictly increase from ea...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
5
0
64 people solved
Sep 27, 2026
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+

Maximum Product of a Contiguous Subarray With Negatives and Zeros

Given an integer array nums, return the largest product obtained by multiplying the elements of a non-empty contiguous subarray. The array can contain...

Coding & AlgorithmsDynamic Programming
5
0
42 people solved
Sep 29, 2026
Amazon logo
AmazonMicrosoftGoogle

Also asked at Google, Bloomberg, Meta, Goldman Sachs, TCS, Zeta Global, Zoho, Intuit, Visa, Salesforce, Sprinklr

Hard
Software Engineer

Measure the Largest All-One Grid Rectangle

Problem The rectangular grid bits contains the characters 0 and 1. Return the largest area of an axis-aligned rectangle made entirely of 1 cells. Such...

Coding & AlgorithmsGrids & MatricesStacks & Queues
1
0
14 people solved
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