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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
Airbnb logo
Airbnb
Medium
Software Engineer

Compute split-stay listing pairs

Given a set of Airbnb listings, each with availability represented as a sorted list of day integers, and a requested inclusive date range [S, E], comp...

Coding & AlgorithmsIntervals & SchedulingBinary Search
81
0
790 people solved
Sep 6, 2025
Spotify logo
Spotify
Medium
Backend Engineer

Visit-Pattern Counter: Multi-Input Runtime Analysis and Production Hardening

In a backend coding round, once you have a working function for the problem below, the interviewer spends the remaining time on follow-ups about what ...

Software Engineering FundamentalsCode Quality & MaintainabilityArrays & Strings
1
0
19 people solved
Jul 7, 2026
Google logo
Google
Medium
Software Engineer

Arrange Values to Maximize Range Requests

Problem Rearrange the values of nums before answering all inclusive, zero-based ranges in requests. Each request contributes the sum of the values in ...

Coding & AlgorithmsGreedyArrays & Strings
1
0
14 people solved
Google logo
GoogleAmazonCapital One

Also asked at Capital One, Bloomberg, Visa, Meta, Roblox, Instacart, SIG (Susquehanna), ByteDance, Uber

Medium
Software Engineer

Longest Decimal Prefix Shared Across Two Integer Arrays

Longest Decimal Prefix Shared Across Two Integer Arrays You are given two arrays arr1 and arr2 of positive integers. A prefix of a positive integer co...

Coding & AlgorithmsArrays & StringsString Algorithms
1
0
16 people solved
Anthropic logo
AnthropicOpenAIApplied Intuition

Also asked at Applied Intuition, Meta, Amazon, Google, Microsoft

Hard
Software Engineer

Find Duplicate Files by Content

Problem You are given a list of directory descriptions. Each description contains a directory path followed by one or more file records of the form fi...

Coding & AlgorithmsArrays & StringsParsing & Interpreters
4
0
77 people solved
Google logo
GoogleBloombergMeta

Also asked at Meta, Microsoft, TCS

Easy
Software Engineer

Recognize the Three Valid Capitalization Patterns

Problem Return whether word uses one of three patterns: all uppercase letters, all lowercase letters, or only its first letter uppercase. Input contai...

Coding & AlgorithmsArrays & Strings
1
0
16 people solved
Pinterest logo
Pinterest
Easy
Machine Learning Engineer

Implement string-based rounding without floats

Coding You are not allowed to parse the input into a built-in floating type (to avoid overflow and precision issues). Work directly on strings. 1) Imp...

Coding & AlgorithmsArrays & StringsMath & Number Theory
25
0
241 people solved
Dec 15, 2025
Google logo
GoogleMicrosoftAmazonBloomberg

Also asked at Amazon, Bloomberg

Hard
Software Engineer

Longest Equal-Character Run After Each Update

Problem You are given a lowercase string s and a sequence of updates. Update i replaces the character at zero-based index queryIndices[i] with queryCh...

Coding & AlgorithmsTreesData Structure Design
0
0
9 people solved
NVIDIA logo
NVIDIA
Easy
Software Engineer

Implement encode/decode for list of strings

You are given a list of strings (may include digits and symbols). Implement two methods: - encode(List<String> input) -> String: converts the list int...

Coding & AlgorithmsParsing & InterpretersArrays & Strings
11
0
186 people solved
Feb 11, 2026
Google logo
GoogleMetaAmazon
Easy
Software Engineer

Feasibility of a Uniform-Parity Construction

Problem You are given an array nums1 of distinct positive integers. Determine whether another array nums2 of the same length can be constructed so tha...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
9 people solved
Visa logo
VisaGoogleMicrosoft

Also asked at Microsoft, Citadel, Millennium, Amazon, Uber, Atlassian, PhonePe, Dialpad

Hard
Software Engineer

Count Five-Position Palindromes in a Digit String

Problem Count subsequences of digit string s with exactly five characters that form a palindrome. Different increasing choices of indices count separa...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
12 people solved
Google logo
GoogleMicrosoftAmazonBloomberg

Also asked at Amazon, Bloomberg

Easy
Software Engineer

Smallest Missing Value at or Above a Sequential Prefix Sum

Smallest Missing Value at or Above a Sequential Prefix Sum You are given a 0-indexed integer array nums. A prefix nums[0..i] is sequential if every su...

Coding & AlgorithmsArrays & Strings
1
0
8 people solved
Google logo
GoogleMicrosoftMeta

Also asked at Meta, Amazon, Bloomberg

Easy
Software Engineer

Could Each Child Have the Most Candies?

Problem For each child independently, imagine giving that child all extraCandies while leaving every other count unchanged. Return a boolean array ind...

Coding & AlgorithmsArrays & Strings
0
0
7 people solved
Infosys logo
InfosysMicrosoft
Medium
Software Engineer

Keep the Longest Subsequence with Bounded Alphabet Gaps

Problem Choose a subsequence of lowercase s such that every two neighboring retained letters differ by at most k in ordinary alphabet position. Return...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
9 people solved
Amazon logo
Amazon
Medium
Software EngineerSenior+

Maximum Profit Assigning Tasks to Exact-Skill Workers Plus One Wildcard Worker

A workshop has a pool of regular workers and a list of tasks. Each worker has an integer skill level, and each task has a required skill level and a p...

Coding & AlgorithmsGreedySorting
1
2
17 people solved
Jun 19, 2026
Bloomberg logo
BloombergMicrosoftRippling

Also asked at Rippling, Expedia, Visa, Amazon, Deshaw, Salesforce, Meta, Tower

Medium
Software Engineer

Print the Smallest String through a Last-In-First-Out Robot Buffer

Problem Start with input s, an empty robot buffer t, and empty paper. You may move the first remaining input character to the end of t, or remove the ...

Coding & AlgorithmsStacks & QueuesGreedy
1
0
13 people solved
DoorDash logo
DoorDash
Medium
Software Engineer Locked

Validate a Shopping Cart

This question evaluates the ability to implement robust input and business-rule validation for shopping-cart items, including data integrity checks, i...

Coding & AlgorithmsData Cleaning & WranglingArrays & Strings
25
0
200 people solved
Jun 10, 2026
Google logo
GoogleMetaBloomberg

Also asked at Bloomberg, Amazon, TCS, Microsoft, Zoho

Easy
Software Engineer

Find the Repeated and Missing Values in a Square Grid

Find the Repeated and Missing Values in a Square Grid You are given a 0-indexed n * n integer grid whose values lie in [1,n^2]. Exactly one value a ap...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Affirm logo
Affirm
Medium
Software Engineer Locked

Aggregate loans and match repayments

This question evaluates the ability to aggregate transactional loan records and match repayment transactions to outstanding loans, testing competencie...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
18
1
234 people solved
Mar 7, 2026
Google logo
GoogleMetaMicrosoft

Also asked at Microsoft, Oracle, SoFi

Hard
Software Engineer

Select the Most Disjoint Palindromic Substrings of Sufficient Length

Problem Choose non-overlapping contiguous substrings of lowercase s. Every selected substring must be a palindrome and have length at least k. Return ...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
9 people solved
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