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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
TikTok logo
TikTok
Medium
Software Engineer Locked

Solve common interview coding problems

This set evaluates algorithmic problem-solving, data structure selection, and time/space complexity analysis across common patterns such as maximum su...

Coding & AlgorithmsDynamic ProgrammingParsing & Interpreters
17
0
137 people solved
Feb 11, 2026
Netflix logo
Netflix
Medium
Software Engineer

Find longest unique show window

Given an array of show names (strings) representing a user's viewing history, return the start and end indices of a longest contiguous subarray that c...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
13
0
205 people solved
Aug 1, 2025
TikTok logo
TikTok
Medium
Software Engineer Locked

Solve common string/DP/stack problems

This set of four coding tasks evaluates proficiency in string algorithms, dynamic programming, sliding-window techniques, monotonic stack usage, and t...

Coding & AlgorithmsTwo Pointers & Sliding WindowDynamic Programming
13
0
174 people solved
Feb 12, 2026
Netflix logo
Netflix
Medium
Software Engineer

Solve non-repeating show substring

Question LeetCode 3. Longest Substring Without Repeating Characters – variant where the elements are show names instead of numbers. https://leetcode.c...

Coding & AlgorithmsTwo Pointers & Sliding Window
17
0
281 people solved
Aug 4, 2025
Microsoft logo
Microsoft
Medium
Software Engineer Locked

Stream output until stop token appears

This question evaluates streaming string processing and pattern-matching skills, specifically handling token detection across chunk boundaries, bounda...

Coding & AlgorithmsString Algorithms
21
0
223 people solved
Feb 12, 2026
Microsoft logo
Microsoft
Easy
Data Scientist

Reverse a list in-place

Coding Task: Reverse a List In-Place (Python) Context You're implementing a utility function during a technical screen. The function must reverse a Py...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
15
0
127 people solved
Oct 13, 2025
LinkedIn logo
LinkedIn
Medium
Software Engineer

Solve six algorithmic problems

Answer the following independent algorithmic prompts. For each, explain your approach, justify data structures, analyze time/space complexity, and pro...

Coding & AlgorithmsTreesArrays & Strings
12
0
208 people solved
Sep 6, 2025
TikTok logo
TikTok
Hard
Software Engineer Locked

Solve four OA algorithm problems

This multi-part exercise evaluates algorithmic problem-solving across combinatorics and geometry (counting axis-aligned square subgrids), string reord...

Coding & AlgorithmsSimulation & State MachinesMath & Number Theory
12
0
171 people solved
Jan 22, 2026
Meta logo
Meta
Medium
Machine Learning EngineerSenior+ Locked

Find two numbers summing to target without hashmap

This question evaluates array manipulation, index-tracking, and algorithmic problem-solving skills, with emphasis on time and space complexity trade-o...

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
6
0
93 people solved
Jan 22, 2026
Amazon logo
Amazon
Medium
Software Engineer

Maximum Gap Between Consecutive Workers' Stations

Maximum Gap Between Consecutive Workers' Stations You are given strings skill and station. Worker i requires the skill skill[i], and station j support...

Coding & AlgorithmsGreedyTwo Pointers & Sliding Window
0
0
6 people solved
Expedia logo
Expedia
Medium
Software Engineer

Count vowel-only substrings with all vowels

Count vowel-only substrings with all vowels Given a lowercase English string s, return the number of contiguous substrings that ( 1) consist only of v...

Coding & AlgorithmsTwo Pointers & Sliding Window
18
0
149 people solved
Aug 9, 2025
Salesforce logo
Salesforce
Hard
Software Engineer Locked

Solve sliding window, heap, DP, in-place tasks

This set evaluates proficiency with core algorithmic patterns—sliding-window techniques, heap-based top-k selection, dynamic programming for unbounded...

Coding & AlgorithmsTwo Pointers & Sliding WindowDynamic Programming
35
0
257 people solved
Jan 22, 2026
Apple logo
Apple
Easy
Software Engineer

Solve three easy algorithm problems

You are given three independent algorithmic tasks. For each one, explain your approach (no need to run code). 1) Merge two sorted lists (integers inst...

Coding & AlgorithmsStacks & Queues
43
0
367 people solved
Nov 11, 2025
Instacart logo
Instacart
Medium
Software Engineer

Validate password strength and repair

Given a password policy—length between 8 and 20 characters; must include at least one lowercase letter, one uppercase letter, and one digit; and must ...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
17
0
177 people solved
Aug 1, 2025
Google logo
Google
Medium
Software EngineerNew Grad Locked

Can board states be transformed?

This question evaluates reasoning about constrained piece movement, string transformation, and invariant-based correctness in the Coding & Algorithms ...

Coding & AlgorithmsTwo Pointers & Sliding Window
17
1
253 people solved
Apr 1, 2026
SoFi logo
SoFi
Easy
Software Engineer

Solve Time-Window and Binary Swap Problems

This online assessment contained two coding problems: 1. Maximum requests in a time window You are given a non-decreasing integer array requestTimes, ...

Coding & AlgorithmsArrays & StringsSimulation & State Machines
10
0
108 people solved
Jan 20, 2026
Meta logo
Meta
Medium
Software EngineerSenior+

Combine Many Sorted Integer Arrays into One Non-Decreasing Array

You are given a collection of integer arrays, each already sorted in non-decreasing order. Combine them into one array that contains every element of ...

Coding & AlgorithmsHeaps & Priority Queues
0
0
9 people solved
Jan 5, 2026
Amazon logo
Amazon
Medium
Data Scientist

Solve two-sum variants at scale

Base task: Given nums = [3, 1, 2, 2, 4] and target = 4, return the 0-based index pair (i, j) with i < j such that nums[i] + nums[j] = target. If multi...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
16
0
128 people solved
Oct 13, 2025
Optiver logo
Optiver
Medium
Software Engineer

Decide and implement DP/heap and approximation

You have 90 minutes to complete three related coding tasks: a) Dynamic programming: Given an integer array nums (n ≤ 2e 5) and a threshold T, design a...

Coding & AlgorithmsDynamic ProgrammingHeaps & Priority Queues
44
0
328 people solved
Aug 13, 2025
Capital One logo
Capital One
Easy
Machine Learning Engineer Locked

Solve OA tasks on string, grid path, subarrays

This multi-part question evaluates string manipulation, constrained grid-path optimization with sequential expression evaluation, and counting of pari...

Coding & AlgorithmsGrids & MatricesArrays & Strings
18
0
233 people solved
Jan 21, 2026
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