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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
154
Companies
980
Updated
11.05.2026
154 Questions 980 Companies11.05.2026
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
AmazonSnowflakeGoogle
Hard
Software Engineer

Minimum Semesters with Prerequisites and a Course Limit

Problem Courses are labeled 1..n. Each relation[prev,next] requires prev to be completed in an earlier semester than next. Take at most k courses per ...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
1
0
10 people solved
Google logo
Google
Hard
Software EngineerSenior+ Locked

Solve order-statistics and XOR-triplet problems

This multi-part question evaluates skills in order-statistics and efficient counting for array inversion-like problems, alongside bitwise manipulation...

Coding & AlgorithmsBit Manipulation
32
0
302 people solved
Jan 22, 2026
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
Google logo
GoogleMicrosoftAmazon
Easy
Software Engineer

Order Integers by Set-Bit Count Then Value

Problem Sort arr by increasing number of 1 bits in each value's binary representation. If bit counts tie, order by increasing numeric value. Return th...

Coding & AlgorithmsSortingBit Manipulation
1
0
11 people solved
Expedia logo
Expedia
Hard
Software Engineer

Solve three interview coding problems

This interview report described three coding tasks: 1. Generate a run-length spoken sequence Start with s1 = "1". To build the next term, read the ...

Coding & AlgorithmsArrays & StringsBacktracking & Recursion
12
0
167 people solved
Jan 6, 2026
Meta logo
Meta
Medium
Software Engineer AI Locked

Solve a Key-Door Corridor Maze

This question evaluates graph search and state-space reasoning by requiring shortest-path computation in a constrained one-dimensional maze with colle...

Coding & AlgorithmsGraphs
4
0
77 people solved
May 14, 2026
Robinhood logo
Robinhood
Hard
Software Engineer

Count Unique Dependents in a Referral DAG

Given named nodes and a dependency DAG, compute how many unique nodes directly or indirectly depend on each node. An edge [a,b] means a depends on b, ...

Coding & AlgorithmsGraphsDynamic Programming
20
0
139 people solved
Apr 14, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Fewest Semesters to Finish All Courses Taking At Most k per Semester

Courses are numbered 0 to n - 1, and some courses must be completed before others. You take courses in semesters: in each semester you may take at mos...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
2
0
25 people solved
Apr 28, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Microsoft, Oracle, Siemens, Zomato

Medium
Software Engineer

Recover Two Singly Occurring Signed Values

Problem Exactly two values in nums occur once; every other value occurs twice. Return the two single-occurrence values in either order, using linear t...

Coding & AlgorithmsBit Manipulation
1
0
10 people solved
Google logo
Google
Easy
Software Engineer

Solve three coding problems

The interview note described the following coding questions: 1. Find the N-th license plate in lexicographic order - A license plate has exactly 6 ...

Coding & AlgorithmsBacktracking & RecursionIntervals & Scheduling
28
0
261 people solved
Jun 15, 2025
Google logo
GoogleYandexAmazon

Also asked at Amazon, Meta, Microsoft, Bloomberg

Medium
Software Engineer

Count Values Shared by Both Prefixes at Each Position

Problem A and B are permutations of the integers 1 through n. Return an array C where C[i] counts values appearing somewhere in both prefixes A[0..i] ...

Coding & AlgorithmsArrays & StringsBit Manipulation
0
0
9 people solved
Airbnb logo
AirbnbTCS
Hard
Software Engineer

Fewest People Covering Every Required Skill

Problem Choose a smallest-size set of people whose combined skills cover every string in req_skills. Return their original zero-based indices in any o...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
0
0
12 people solved
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Bloomberg, Meta, Accenture

Easy
Software Engineer

Identify the Added Letter

Identify the Added Letter String t was made by shuffling the letters of string s and adding one additional lowercase letter at some position. Return t...

Coding & AlgorithmsArrays & Strings
0
0
4 people solved
Google logo
GoogleBloombergAmazon
Easy
Software Engineer

Count Differing Positions in Two Binary Integers

Count Differing Positions in Two Binary Integers Given nonnegative integers x and y, return the number of binary bit positions where their bits differ...

Coding & AlgorithmsBit Manipulation
1
0
8 people solved
Visa logo
VisaInfosysMicrosoftPoint72

Also asked at Microsoft, Point72

Medium
Software Engineer

Maximize the Bitwise OR Within a Doubling Budget

Maximize the Bitwise OR Within a Doubling Budget You are given a zero-indexed array nums of positive integers and an integer k. One operation chooses ...

Coding & AlgorithmsBit ManipulationGreedy
1
0
13 people solved
Databricks logo
Databricks
Medium
Software Engineer

Find first CIDR block covering IP

You are given: - A single IPv4 address as a string, e.g. "192.168.1.5". - A list of CIDR blocks (IPv4), each as a string in the form "a.b.c.d/x", wher...

Coding & AlgorithmsNetworkingBit Manipulation
23
0
180 people solved
Dec 8, 2025
Netflix logo
Netflix
Medium
Software Engineer Locked

Solve sliding-window and disjoint-string-pairs tasks

This question evaluates proficiency in string-processing algorithms, sliding-window techniques, efficient set or bitmask representations, and combinat...

Coding & AlgorithmsTwo Pointers & Sliding WindowBit Manipulation
34
0
324 people solved
Mar 1, 2026
Goldman Sachs logo
Goldman SachsUberThoughtSpot

Also asked at ThoughtSpot, WeRide, Google

Hard
Software Engineer

Count Tree Paths Whose Edge Letters Can Form a Palindrome

Count Tree Paths Whose Edge Letters Can Form a Palindrome You are given a connected, undirected tree with no cycles, rooted at node 0. Its n nodes are...

Coding & AlgorithmsTreesBit Manipulation
0
0
7 people solved
Amazon logo
AmazonMicrosoftGoogle

Also asked at Google, Nutanix, Oracle, Meta, Bloomberg

Easy
Software Engineer

Read a Binary Integer From Native List Nodes

Problem The nonempty singly linked list begins with its most significant binary digit. Every node value is 0 or 1. Return the represented integer in d...

Coding & AlgorithmsLinked ListsBit Manipulation
0
0
4 people solved
Google logo
Google
Hard
Software Engineer

Maximize the Sum of Squares After Bitwise Pair Operations

Maximize the Sum of Squares After Bitwise Pair Operations You are given a 0-indexed integer array nums and a positive integer k. You may perform the f...

Coding & AlgorithmsBit ManipulationGreedy
0
0
6 people solved
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