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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
509
Companies
980
Updated
11.08.2026
509 Questions 980 Companies11.08.2026
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
Citadel logo
Citadel
Medium
Software Engineer

Solve four algorithmic problems

Answer the following independent algorithmic questions: 1) Count extendable prefixes for '10' subsequences: Given a binary string s and an integer k, ...

Coding & AlgorithmsDynamic Programming
35
1
349 people solved
Sep 6, 2025
Microsoft logo
Microsoft
Medium
Software Engineer

Most Copies from a Sale with Divisibility Gifts

Most Copies from a Sale with Divisibility Gifts You are given item types items, where items[i] = [factor, price], and an integer budget. Unlimited cop...

Coding & AlgorithmsDynamic Programming
0
0
8 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Highest Total Profit from Non-Overlapping Jobs When Endpoints May Touch

Each job has a start time, an end time and a profit. Choose jobs that do not overlap in time so that the total profit is as large as possible. Functio...

Coding & AlgorithmsDynamic ProgrammingIntervals & Scheduling
3
0
23 people solved
Apr 28, 2026
Amazon logo
Amazon
Medium
Software EngineerNew Grad

Solve tree and DP problems

This coding round contained two algorithm questions: 1. Deepest shared ancestor in a binary tree You are given the root of a binary tree and two di...

Coding & AlgorithmsTreesDynamic Programming
50
0
349 people solved
Oct 24, 2025
Amazon logo
Amazon
Hard
Software Engineer

Minimum Cost of Nonoverlapping String Replacements

Minimum Cost of Nonoverlapping String Replacements You are given equal-length lowercase strings source and target, an array rules, and an equally size...

Coding & AlgorithmsDynamic ProgrammingString Algorithms
0
0
5 people solved
Google logo
Google
Easy
Software Engineer

Compute max coins with 3-step token moves

You are given a one-dimensional board with n positions represented by a string s of length n: - . = empty cell - T = token - C = coin You may move tok...

Coding & AlgorithmsGreedy
36
0
247 people solved
Oct 16, 2025
Oracle logo
Oracle
Medium
Software EngineerSenior+

Maximum stock trading profit with at most k buy-and-sell transactions

You are given an integer k and a list prices, where prices[i] is the price of one share of a stock on day i. You may complete at most k transactions, ...

Coding & AlgorithmsDynamic Programming
1
0
13 people solved
Apr 3, 2026
Bloomberg logo
Bloomberg
Medium
Software EngineerSenior+ Locked

Solve Grid Path and Unique Substring

This question evaluates algorithmic problem solving skills in grid traversal and stateful string processing, specifically testing understanding of pat...

Coding & AlgorithmsBacktracking & RecursionTwo Pointers & Sliding Window
30
0
223 people solved
Jan 29, 2026
Google logo
Google
Hard
Software Engineer Locked

Find best-matching binary pattern with wildcards

This question evaluates pattern-matching and string-algorithm skills, including handling wildcards and variable-length matches, priority-based rule se...

Coding & AlgorithmsString AlgorithmsDynamic Programming
15
1
186 people solved
Jan 15, 2026
WeRide logo
WeRide
Medium
Software Engineer

Implement matrix multiplication and fast exponentiation

1) - A n × m - B m × p C = A × Bn × p - - - MOD MOD 2) Exponentiation by Squaring x k MOD - x^k - x^k mod MOD - O(log k) - k = 0x = 0 3) n (n ≥...

Coding & AlgorithmsMath & Number Theory
15
0
115 people solved
Oct 2, 2025
Amazon logo
Amazon
Hard
Software EngineerIntern

Return all valid word-break sentences

Given a string s and a dictionary of strings wordDict, insert spaces into s to form a sentence such that every token is in wordDict. Return all possib...

Coding & AlgorithmsBacktracking & Recursion
15
0
257 people solved
Jan 15, 2026
Citadel logo
Citadel
Medium
Software Engineer

Solve two DS&A optimization problems

Problem 1 — Maximize alternating-sum over four array partitions: Given an integer array arr[1..n] (1-based). Choose indices a, b, c with 1 ≤ a ≤ b ≤ c...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
15
0
230 people solved
Jul 16, 2025
Uber logo
Uber
Medium
Machine Learning Engineer

Choose K pickup locations minimizing L1 distance

Coding: K Shuttle Pickup Locations (L1) You are given the coordinates of N people on a 2D grid. You want to open K shuttle pickup locations (pickup po...

Coding & AlgorithmsUnsupervised Learning
37
0
379 people solved
Dec 15, 2025
DoorDash logo
DoorDash
Hard
Software Engineer

Find longest common ordered restaurant list

You have two delivery drivers who each have a pickup plan represented as a list of restaurant IDs (strings). Because there is only one car, the combin...

Coding & AlgorithmsDynamic Programming
31
0
236 people solved
Nov 7, 2025
Snowflake logo
Snowflake
Medium
Software Engineer Locked

Compute effective permissions on DAG and prune tree

This set of problems evaluates proficiency in graph and tree algorithms, specifically transitive state propagation and conflict resolution on a DAG (e...

Coding & AlgorithmsGraphsTrees
31
0
303 people solved
Feb 12, 2026
Google logo
Google
Medium
Software Engineer

Optimize 0/1 to bounded knapsack DP

Solve the 0/1 knapsack problem: given arrays weight[i], value[i] for i=0..n-1 and capacity W, return the maximum value and reconstruct one optimal set...

Coding & AlgorithmsDynamic Programming
12
0
182 people solved
Sep 6, 2025
Citadel logo
Citadel
Hard
Data Scientist Locked

Solve Classic Probability Questions

This set evaluates probabilistic reasoning and expectation computation across topics such as sequential conditional survival, convolution of continuou...

Statistics & MathProbabilityPuzzles & Brainteasers
30
0
228 people solved
Feb 21, 2026
Tesla logo
Tesla
Medium
Software Engineer

Optimize Trapping Rain Water

Question LeetCode 42. Trapping Rain Water – implement a brute-force solution, analyze its complexity, then optimize to an O(n) solution with O(n) spac...

Coding & AlgorithmsTwo Pointers & Sliding WindowDynamic Programming
17
0
158 people solved
Aug 4, 2025
Pika logo
Pika
Medium
Software Engineer

Implement text formatter and sum subarray products

1) Text formatter (LC-inspired variant): Given an array of words and an integer maxWidth W >= 1, break the words into lines so that the total length o...

Coding & AlgorithmsArrays & StringsDynamic Programming
7
0
111 people solved
Aug 12, 2025
Visa logo
Visa
Medium
Software Engineer

Compute distinct sums from limited coins

You are given two integer arrays, denom[0..n-1] and count[0..n-1], where denom[i] > 0 is a coin denomination and count[i] >= 0 is the number of availa...

Coding & AlgorithmsDynamic Programming
9
0
139 people solved
Aug 11, 2025
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