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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
435
Companies
980
Updated
11.12.2026
435 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
Palantir logo
PalantirGoogleMicrosoftBloomberg

Also asked at Microsoft, Bloomberg

Medium
Software Engineer

Find Pattern Starts with a Nearby Second Pattern

Find Pattern Starts with a Nearby Second Pattern You are given a 0-indexed string s, strings a and b, and an integer k. Return every index i satisfyin...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
2
0
33 people solved
Goldman Sachs logo
Goldman Sachs
Medium
Software Engineer

Count segments and optimize 3-server assignment

There are two independent programming tasks. --- Problem 1: Transaction Segments You are given: - An integer n, the length of an array. - An integer k...

Coding & AlgorithmsTwo Pointers & Sliding Window
59
2
808 people solved
Dec 7, 2025
ByteDance logo
ByteDance
Hard
Machine Learning Engineer

Combined Median of Two Sorted Integer Lists in Logarithmic Time

You are given two integer arrays, nums1 and nums2, each sorted in non-decreasing order. Return the median of all the values of both arrays taken toget...

Coding & AlgorithmsBinary Search
1
0
28 people solved
Sep 20, 2026
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Grammarly, Bloomberg, Microsoft, LinkedIn

Medium
Software Engineer

Find Distinct Repeated Ten-Base DNA Windows

Problem Return every distinct length-10 substring that occurs more than once in the DNA string s. Overlapping occurrences count. Include a repeated se...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
9 people solved
Google logo
GoogleMicrosoftAmazon

Also asked at Amazon, Bloomberg, HashedIn, Roblox, Meta, Salesforce, Infosys, Uber, TikTok, ServiceNow, Capital One

Hard
Software Engineer

Count Contiguous Subarrays with Exactly K Distinct Values

Problem Return the number of nonempty contiguous subarrays of nums containing exactly k different integers. Different index intervals count separately...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
18 people solved
Juspay logo
JuspayAmazonGoogle

Also asked at Google, Microsoft, Bloomberg, TCS

Hard
Software Engineer

Fewest Replacements for a Consecutive Set

Problem One operation replaces any entry of nums with any integer. Return the fewest replacements needed to make all n entries distinct with maximum m...

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
0
0
17 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Assign Each Person the Nearest Cake in a One-Dimensional Row

People and cakes stand in a single row of positions, described by an integer array whose values are 0, 1 or 2. The original question asks for the clos...

Coding & AlgorithmsArrays & Strings
3
0
42 people solved
Apr 28, 2026
A
Addepar
Easy
Software Engineer Locked

Implement a URL-Prefix Sliding-Window Alert Monitor

Design a URL-prefix alert monitor with a 10-minute window, exact error thresholds, trie or dictionary storage, event expiration, and clear alert seman...

Software Engineering FundamentalsData Structure DesignTrees
3
0
44 people solved
Aug 24, 2026
Databricks logo
Databricks
Medium
Software EngineerSenior+ Locked

Add Sliding-Window Get and Put Activity Metrics to a Key-Value Store

Extend an in-memory key-value store with averageGet(window) and averagePut(window) activity metrics for sliding windows of one hour, one day, and one ...

Software Engineering FundamentalsTwo Pointers & Sliding WindowKey-Value Stores
21
0
155 people solved
Jul 30, 2026
Google logo
GoogleAmazonMeta

Also asked at Meta, Microsoft, Bloomberg, IBM, TCS, Apple, Accenture, NVIDIA, AMD

Easy
Software Engineer

Return the Later Middle Node of a Singly Linked List

Problem Return the middle node pointer of the singly linked list beginning at head. If the list has two middle nodes, return the second one. Example o...

Coding & AlgorithmsLinked ListsTwo Pointers & Sliding Window
1
0
11 people solved
Amazon logo
AmazonYandexGoogle

Also asked at Google, Meta, Microsoft, Bloomberg, Whatnot, IBM, TikTok, Uber, Visa, Roku, Attentive, Fortinet

Easy
Software Engineer

Check for a Palindrome after at Most One Deletion

Problem Return whether deleting zero or one character from s can leave a palindrome. The remaining characters keep their original order. `cpp class So...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
9 people solved
Google logo
GoogleAmazonEY

Also asked at EY, Bloomberg, Microsoft, Meta

Medium
Software Engineer

Count Nonempty Binary Segments with an Exact Sum

Problem Given binary array nums and goal, count the nonempty contiguous subarrays whose sum equals goal. Return the number of index intervals, includi...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
12 people solved
Google logo
GoogleDoorDashAmazonMeta

Also asked at Amazon, Meta

Medium
Software Engineer

Assign Each Worker Its Best Feasible Reusable Job

Problem Job i has difficulty[i] and profit[i]. Worker j can do any job whose difficulty is at most worker[j], and can receive at most one assignment. ...

Coding & AlgorithmsGreedySorting
1
0
11 people solved
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, AppLovin, Meta, Bloomberg, Goldman Sachs, Agoda, Microstrategy, Roku, Salesforce, Wells Fargo

Easy
Software Engineer

Compare Two Backspace-Edited Strings

Problem Type each string into a separate empty editor. Lowercase letters append themselves and deletes the latest remaining character, doing nothing w...

Coding & AlgorithmsTwo Pointers & Sliding WindowStacks & Queues
1
0
11 people solved
Google logo
GoogleArcesiumMeta

Also asked at Meta, Amazon, Salesforce, Bloomberg, Microsoft

Hard
Software Engineer

Split into Equal-Sized Groups with Closest Sums

Problem Given an array nums of length 2 * n, divide all its entries into two groups containing exactly n entries each. The groups need not be contiguo...

Coding & AlgorithmsBacktracking & RecursionBinary Search
2
0
16 people solved
PhonePe logo
PhonePeAdobeMicrosoft

Also asked at Microsoft, Uber, Google, Meesho, MathWorks, Amazon, Morgan Stanley, Meta

Hard
Software Engineer

Count Segments Whose Exact Minimum and Maximum Match Two Bounds

Problem Count nonempty contiguous subarrays of nums whose minimum is exactly minK and whose maximum is exactly maxK. Return the number of index interv...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
11 people solved
Microsoft logo
Microsoft
Medium
Software EngineerSenior+ Locked

Find Unique Zero-Sum Triplets

Find unique zero-sum triplets with distinct indices, deterministic ordering, careful duplicate suppression, and explicit time and space analysis.

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
5
0
100 people solved
Sep 10, 2026
Amazon logo
AmazonMetaGoogle

Also asked at Google, Microsoft, Bloomberg, Generalmotors

Hard
Software Engineer

Choose Three Disjoint Equal-Length Windows with Lexicographic Ties

Problem Choose three nonoverlapping length-k contiguous subarrays of nums maximizing their combined sum. Return their starting indices in increasing o...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
18 people solved
Google logo
Google
Easy
Software Engineer

Shortest Distance Between Two Words, Then a Word-List Class With an Anagram Check

You are given a list of words, which may contain repeats, and two words word1 and word2. Return the smallest distance between an occurrence of word1 a...

Software Engineering FundamentalsArrays & Strings
2
0
26 people solved
Jun 28, 2026
Citadel logo
Citadel
Medium
Software Engineer Locked

Minimize Changes to Make Every Password Block Palindromic

Return the minimum character changes needed so every fixed-length block in a lowercase password becomes a palindrome while block boundaries remain unc...

Coding & AlgorithmsTwo Pointers & Sliding Window
15
3
283 people solved
Aug 7, 2026
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