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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
Google logo
GoogleAmazonGoldman Sachs
Hard
Software Engineer

Minimum House-to-Mailbox Distance with k Mailboxes

Problem Houses occupy distinct positions along a street. Place k mailboxes to minimize the sum,over all houses,of the distance to that house's nearest...

Coding & AlgorithmsDynamic ProgrammingSorting
1
0
11 people solved
ZipHQ logo
ZipHQ
Medium
Software Engineer

Implement a Vending Machine

Design and implement the core logic for a vending machine using object-oriented principles. The machine stores products, accepts bills, tracks the cur...

Software Engineering FundamentalsLow-Level Design (OOP)Simulation & State Machines
54
0
476 people solved
Jan 28, 2026
Google logo
GoogleAmazonMicrosoft

Also asked at Microsoft, Bloomberg, Netflix

Medium
Software Engineer

Measure a Shared Contiguous Array Block

Problem Return the greatest length of a contiguous block occurring in both nums 1 and nums 2. A subsequence with gaps does not qualify. `cpp class Sol...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
14 people solved
ThoughtSpot logo
ThoughtSpotMicrosoftGoogleMorgan Stanley

Also asked at Google, Morgan Stanley

Medium
Software Engineer

Choose a Maximum-Score Conflict-Free Team

Problem Each player has the corresponding entries in scores and ages. A younger player conflicts with an older player only when the younger player’s s...

Coding & AlgorithmsDynamic ProgrammingSorting
1
0
9 people solved
Google logo
Google
Hard
Software Engineer Locked

Find the Longest Straight Run of One Color

Find the longest straight run of equal-colored cells across horizontal, vertical, and both diagonal directions in a rectangular grid.

Coding & AlgorithmsGrids & MatricesDynamic Programming
35
1
248 people solved
Aug 23, 2026
Digitalocean logo
Digitalocean
Medium
Software Engineer Locked

Specify House-Selection Constraints Before Choosing a Robbery Dynamic Program

Clarify house layout and selection conflicts, derive a conditional linear dynamic program, and explain how circular or graph constraints change it.

Software Engineering FundamentalsDynamic Programming
4
0
34 people solved
Sep 16, 2026
Meta logo
Meta
Hard
Software Engineer Locked

Design and Evaluate a Solver for a 36-Card Sum-Fifteen Game

Clarify a 36-card triple-sum game, compare legal search and heuristic strategies, and evaluate reproducible win rates and runtime across many games.

Software Engineering FundamentalsBacktracking & RecursionSimulation & State Machines
4
0
38 people solved
Sep 4, 2026
Uber logo
Uber
Medium
Software Engineer

Solve 12 coding interview problems

Below are multiple independent coding problems. --- Problem 1: Reduce an integer to 0 with \(\pm 2^i\) You are given a positive integer \(n\). In one ...

Coding & AlgorithmsDynamic ProgrammingBinary Search
372
0
3900 people solved
Feb 12, 2026
Tekion logo
Tekion
Medium
Software EngineerSenior+

Find an Optimal Strategy for an Even-Row Coin Game

A and B play a game with an even number of coins arranged in a row. They alternate turns, with A moving first. On each turn, the player takes one coin...

Statistics & MathDynamic ProgrammingMath & Number Theory
7
0
49 people solved
Sep 10, 2026
Google logo
GoogleAmazonRubrik
Medium
Software Engineer

Count Prefix and Suffix Removals by Product Remainder

Problem You are given a nonempty array of positive integers nums and a positive integer k. Perform one operation by removing a prefix and a suffix, le...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
1
0
11 people solved
Xiaohongshu logo
Xiaohongshu
Medium
Software Engineer Locked

Maximum Profit from One Stock Purchase and a Later Sale

Given one stock's price on each of several consecutive days, compute the maximum profit from buying one share and selling it on a strictly later day, ...

Coding & AlgorithmsArrays & Strings
2
0
32 people solved
Aug 28, 2026
Infosys logo
InfosysGoogle
Hard
Software Engineer

Maximize the Score from Repeated Row Splits

Problem The positive values in stoneValue are arranged in a row. At each step, split the current row into two nonempty contiguous rows. Discard the ro...

Coding & AlgorithmsDynamic Programming
0
0
10 people solved
Google logo
GoogleAmazon
Hard
Software Engineer

Answer Kth-Ancestor Queries with the Native Tree Class

Problem The parent array describes a tree on 0..n-1 rooted at 0. Implement TreeAncestor(n,parent),then getKthAncestor(node,k) to return the ancestor r...

Coding & AlgorithmsTreesData Structure Design
0
0
11 people solved
New Relic logo
New Relic
Medium
Backend Engineer

Longest Strictly Increasing Path in a Grid with Four-Directional Moves

Given an R x C matrix of integers, return the number of cells on the longest path along which the values strictly increase from each cell to the next....

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
2
0
30 people solved
Sep 23, 2026
Microsoft logo
MicrosoftArcesiumExpedia
Medium
Software Engineer

Maximize Total Height in a Mountain of Towers

Maximize Total Height in a Mountain of Towers You are given a 0-indexed array maxHeights of n integers. Choose an integer height heights[i] for the to...

Coding & AlgorithmsStacks & QueuesDynamic Programming
0
0
12 people solved
Amazon logo
AmazonUberMeta

Also asked at Meta, Intuit, Snowflake

Medium
Software Engineer

Choose Alice's Most Profitable Root-to-Leaf Route against Bob

Problem The undirected tree edges is rooted at node 0. Alice starts at 0 and moves one edge per second along a route to a leaf. Bob starts at bob and ...

Coding & AlgorithmsTreesDynamic Programming
1
0
12 people solved
Voleon logo
Voleon
Hard
Software EngineerNew Grad Locked

Solve classic coding interview problems

These problems evaluate algorithmic problem-solving skills including dynamic programming and combinatorics for the egg-dropping scenario, array manipu...

Coding & AlgorithmsDynamic ProgrammingTwo Pointers & Sliding Window
61
0
416 people solved
Feb 15, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, IMC, NVIDIA, Agoda, TikTok, Flipkart

Medium
Software Engineer

Count Grid Routes Around Obstacles

Problem The rectangular integer grid blocked uses 0 for an open cell and 1 for an obstacle. A route begins at the upper-left cell and ends at the lowe...

Coding & AlgorithmsDynamic ProgrammingGrids & Matrices
1
0
14 people solved
Google logo
Google
Medium
Software Engineer Locked

Solve Three Array and Matrix Path Problems

This set of three problems evaluates algorithm design, complexity analysis, and data-structure reasoning across matrix path traversal, interval covera...

Coding & AlgorithmsGrids & MatricesDynamic Programming
23
3
299 people solved
May 30, 2026
Google logo
GoogleMicrosoftMeta

Also asked at Meta, Bloomberg, Amazon

Medium
Software Engineer

Decide the Winner of Optimal End-Pile Stone Selection

Problem Two players alternately take an entire pile from either end of a row, with the first player moving first. Both maximize their final stone tota...

Coding & AlgorithmsMath & Number TheoryDynamic Programming
0
0
10 people solved
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