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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
1.5k
Companies
980
Updated
11.12.2026
1.5k Questions 980 Companies11.12.2026
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
MicrosoftGoogleAmazon

Also asked at Amazon, Bloomberg, Swiggy, Meta

Easy
Software Engineer

Exchange One Box Each to Equalize Two Candy Totals

Problem Each value in aliceSizes or bobSizes is the candy count in one box owned by that person. Exchange exactly one box from each person so their ne...

Coding & AlgorithmsArrays & StringsMath & Number Theory
0
0
7 people solved
Google logo
GoogleInfosysMongoDB

Also asked at MongoDB, Uber, Amazon, PhonePe, Capital One, Microsoft, Meta, Visa, Salesforce, Yandex

Medium
Software Engineer

Longest Window Whose Largest Pair Difference Meets a Limit

Problem Return the length of the longest nonempty contiguous subarray of nums in which every pair of values differs in absolute value by at most limit...

Coding & AlgorithmsTwo Pointers & Sliding WindowStacks & Queues
0
0
7 people solved
Google logo
GoogleDoorDashAmazon

Also asked at Amazon, Meta, Uber, Capital One, Microsoft, Snowflake, Coinbase

Medium
Software Engineer

Create and Query Hierarchical Path Values

Problem Implement FileSystem. A valid path is one or more segments, each a slash followed by one or more lowercase letters; empty strings and / alone ...

Coding & AlgorithmsData Structure DesignArrays & Strings
0
0
9 people solved
Infosys logo
Infosys
Hard
Software Engineer

Count Updates That Admit a Proper Subsequence with a Target GCD

Count Updates That Admit a Proper Subsequence with a Target GCD You are given an integer array nums of length n, a positive integer p, and an ordered ...

Coding & AlgorithmsMath & Number TheoryTrees
0
0
10 people solved
Waymo logo
Waymo
Hard
Software Engineer

Find Dictionary Words Represented by Repeated Letters

Find all dictionary words that could produce a supplied string by repeating characters in place. For example, help can produce heellp by repeating e a...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
3
0
47 people solved
Jun 27, 2026
CloudKitchens logo
CloudKitchens
Medium
Software Engineer

Implement menu parser and serializer

Menu parser and serializer You are given a restaurant menu stored as plain text, where indentation represents a hierarchy of categories and items. Imp...

Coding & AlgorithmsParsing & InterpretersTrees
22
0
302 people solved
Nov 7, 2025
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
AmazonMicrosoftOracle

Also asked at Oracle, Google, HashedIn

Hard
Software Engineer

Choose a Shared Array Value with Minimum Weighted Unit Cost

Problem Changing nums[i] by one in either direction costs cost[i]. You may make any number of such changes. Return the minimum total cost needed to ma...

Coding & AlgorithmsMath & Number TheorySorting
0
0
8 people solved
Google logo
GoogleAmazon
Easy
Software Engineer

Sum Squared Distinct Counts Across All Subarrays

Sum Squared Distinct Counts Across All Subarrays You are given a 0-indexed integer array nums. For a nonempty contiguous subarray nums[i..j], where 0 ...

Coding & AlgorithmsArrays & Strings
0
0
8 people solved
Snowflake logo
Snowflake
Hard
Software Engineer

Find Every Three-Card Set Among Cards With Four Attributes

A card game uses cards that each have four attributes: color, shape, number and shading. As in the standard version of the game, each attribute takes ...

Coding & AlgorithmsArrays & StringsMath & Number Theory
3
0
26 people solved
Jul 4, 2026
Datadog logo
Datadog
Hard
Software Engineer

Implement Prefix Match Filter

Design a data structure that stores a collection of prefix strings. Then, given a list of input strings, return every string that begins with at least...

Coding & AlgorithmsData Structure DesignString Algorithms
32
0
251 people solved
Feb 25, 2026
Amazon logo
AmazonGoogleDoorDash

Also asked at DoorDash, Meta, Bloomberg, Goldman Sachs, Sprinklr

Medium
Software Engineer

Detect a Strict 132 Pattern

Detect a Strict 132 Pattern Given an integer array nums, determine whether it contains three indices i < j < k such that: `text nums[i] < nums[k] < nu...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
6 people solved
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
Stripe logo
Stripe
Medium
Software Engineer

Design a subscription email scheduler with changes and renewals

Implement an email notification scheduler for subscription accounts. Inputs: - send_schedule: a mapping whose keys include: • "start": label to send...

Coding & AlgorithmsSimulation & State MachinesSorting
36
0
346 people solved
Aug 12, 2025
Google logo
GoogleRubrik
Hard
Software Engineer

Product Remainder Counts After Array Updates

Product Remainder Counts After Array Updates You are given a positive integer array nums, an integer k, and queries of the form [index, value, start, ...

Coding & AlgorithmsTreesArrays & Strings
1
0
14 people solved
Google logo
GoogleAmazonAT&T

Also asked at AT&T, Microsoft, Meta, Bloomberg

Medium
Software Engineer

Choose a Highest-Sum Distinct Subarray

Problem Erase exactly one nonempty contiguous subarray of the positive array nums. Its values must all be distinct, and its score is their sum. Return...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
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
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
Coinbase logo
Coinbase
Medium
Software Engineer

Implement a versioned recipe management system

You are asked to implement an in-memory Recipe Management System (similar in difficulty to a simple banking/in-memory DB exercise). The system support...

Coding & AlgorithmsLow-Level Design (OOP)
29
0
343 people solved
Nov 23, 2025
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft

Easy
Software Engineer

Are All Value Frequencies Different?

Problem Count how often each distinct integer appears in arr. Return true exactly when no two different values have the same occurrence count. `cpp cl...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
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