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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
Amazon logo
Amazon
Hard
Software Engineer

Finish the Orange Supply in the Fewest Days

Problem Start with n oranges. Each day choose one available action: eat one orange; when the current count is divisible by two, eat half; or when it i...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
9 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Minimum Node Deletions to Bring an N-ary Tree's Height Within k

You are given a rooted N-ary tree and a limit k. Deleting a node removes it from the tree, and its children are attached to its parent instead of bein...

Coding & AlgorithmsTreesGreedy
3
0
27 people solved
Apr 28, 2026
Google logo
GoogleBloomberg
Hard
Software Engineer

Best Upward Board Score and Number of Optimal Routes

Problem Start at S in the bottom-right corner of the square board and reach E in the top-left. Each move goes up,left or diagonally up-left to a non-X...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
0
0
9 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Minimum Months to Finish All Courses with Durations and Unlimited Parallelism

Courses are numbered 0 to n - 1. Course i takes time[i] months to complete, some courses can start only after others are complete, and any number of c...

Coding & AlgorithmsGraphsDynamic Programming
1
0
25 people solved
Apr 28, 2026
Amazon logo
Amazon
Hard
Software Engineer

Maximum Meeting Earnings Including Idle Gaps

Maximum Meeting Earnings Including Idle Gaps You are given meetings, where each row is [start, end, revenue]. Select a nonempty subset of meetings tha...

Coding & AlgorithmsIntervals & SchedulingDynamic Programming
0
0
5 people solved
Amazon logo
Amazon
Hard
Software Engineer

Maximize the Difference between Two Present Letter Counts

Problem For a nonempty contiguous substring of lowercase string s, choose two letters present in that substring and subtract the smaller occurrence co...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
10 people solved
InMobi logo
InMobiGoogleMeta

Also asked at Meta, Microsoft, Amazon, Bloomberg

Hard
Software Engineer

Maximum Sum of an Increasing-Decreasing-Increasing Subarray

Problem You are given an integer array nums. Consider a contiguous subarray nums[l...r] for which there are indices l < p < q < r such that: - nums[l....

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
6 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Build a Tree Whose Nodes Hold the Original Tree's Subtree Sums

Every node of a rooted tree holds an integer. Build a second tree with the same shape in which each node holds the sum of all the values in the corres...

Coding & AlgorithmsTrees
3
0
28 people solved
Apr 28, 2026
Agoda logo
Agoda
Medium
Software Engineer

Compute triangle min path and dice stopping stats

You are given two independent interview questions. 1) Triangle minimum path sum (DP) Given a triangular array triangle with n rows, find the minimum p...

Coding & AlgorithmsDynamic ProgrammingProbability
15
0
141 people solved
Nov 14, 2025
Amazon logo
AmazonGoogle
Medium
Software Engineer

Maximum Subarray Sum in Repeated Copies

Problem Concatenate k copies of arr and find the largest contiguous-subarray sum. The empty subarray is allowed and has sum 0. Return the maximum sum ...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
9 people solved
Snowflake logo
Snowflake
Medium
Software Engineer

Decide Whether an Undirected Graph Can Be Colored with Three Colors

Given an undirected graph, decide whether every node can be given one of three colors so that no edge connects two nodes of the same color. Function S...

Coding & AlgorithmsGraphsBacktracking & Recursion
1
0
30 people solved
Apr 28, 2026
Two Sigma logo
Two Sigma
Hard
Software Engineer

Compute maximum currency exchange rate

Compute maximum currency exchange rate You are given a set of currencies and the direct exchange rates between some pairs of them. Each direct exchang...

Coding & AlgorithmsGraphsMath & Number Theory
36
0
303 people solved
Jul 20, 2025
Meta logo
MetaInfosysBloomberg

Also asked at Bloomberg, Google, Microsoft, Amazon

Hard
Software Engineer

Count Disjoint Subsequence Pairs with Equal GCD

Count Disjoint Subsequence Pairs with Equal GCD Problem Given a positive integer array nums, count ordered pairs of nonempty subsequences (seq1, seq2)...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
1
0
12 people solved
Google logo
GoogleMetaAmazon
Medium
Software Engineer

Choose Exam Questions with Forced Skips

Problem An exam contains questions in a fixed order. questions[i] = [points, brainpower] describes question i. Solving it earns points but prevents so...

Coding & AlgorithmsDynamic Programming
0
0
11 people solved
Databricks logo
Databricks
Medium
Software Engineer

Solve graph path, interval deletion, and robbery

Solve graph path, interval deletion, and robbery Part A — Optimal path with transport modes: You are given a directed weighted graph of a city. Each e...

Coding & AlgorithmsGraphsDynamic Programming
29
0
440 people solved
Aug 9, 2025
DRW logo
DRW
Medium
Software EngineerIntern

Solve three algorithmic OA problems

This is an online assessment (Codility-style, 150 minutes) consisting of three independent coding problems. Solve each one separately; they do not sha...

Coding & AlgorithmsBacktracking & RecursionBit Manipulation
56
0
469 people solved
Oct 8, 2025
Microsoft logo
MicrosoftGoogleAmazon

Also asked at Amazon, Meta, Bloomberg

Medium
Software Engineer

Compute the Chance of Finishing below a Score Limit

Problem Start at 0 points. While the score is below k, independently draw a uniformly random integer from 1 through maxPts and add it. Stop as soon as...

Coding & AlgorithmsDynamic ProgrammingProbability
1
0
9 people solved
Google logo
GoogleASUSAmazonMeta

Also asked at Amazon, Meta

Hard
Software Engineer

Winner of the Optimal One-to-Three Stone Game

Problem Alice and Bob alternate taking the first 1,2,or 3 remaining stones, with Alice first. Each player adds the values taken to a score initially 0...

Coding & AlgorithmsDynamic Programming
0
0
6 people solved
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Meta, Bloomberg

Hard
Software Engineer

Build a Shortest String Containing Two Subsequences

Problem Return a shortest string containing both str1 and str2 as subsequences. A subsequence keeps character order while allowing deletions. If sever...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
8 people solved
Amazon logo
AmazonSnowflakeGoogleMeta

Also asked at Google, Meta

Hard
Software Engineer

Paint Every Wall at Minimum Cost with Two Painters

Paint Every Wall at Minimum Cost with Two Painters You are given 0-indexed integer arrays cost and time, each containing one entry for each of n diffe...

Coding & AlgorithmsDynamic Programming
1
0
13 people solved
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