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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
Google
Hard
Software Engineer

Weighted Tree: Total Distance from Each Node to All Other Nodes

An undirected tree has n nodes labeled 0 to n - 1, and every edge has a positive integer weight. The distance between two nodes is the sum of the edge...

Coding & AlgorithmsTreesDynamic Programming
72
1
1003 people solved
Oct 29, 2026
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Meta, TCS, Bloomberg, IBM, Adobe, Goldman Sachs, Yandex, Cognizant, Infosys, Tinkoff, Visa, Cisco, Oracle, TikTok, Deloitte, Apple, Salesforce, Walmart Labs, EPAM Systems, Zoho, Uber

Medium
Software Engineer

Return a Longest Palindromic Slice

Problem Given the string text, return a contiguous substring of maximum length whose characters read identically from left to right and from right to ...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
27
3
300 people solved
Databricks logo
Databricks
Hard
Software Engineer

Path Between Two Nodes in a Preorder-Numbered Fibonacci Tree

A Fibonacci tree is a binary tree defined by its order: - The trees of order 0 and order 1 are each a single node. - For n >= 2, the tree of order n i...

Coding & AlgorithmsTrees
14
0
162 people solved
Oct 19, 2026
Rippling logo
Rippling
Medium
Software Engineer

Expense Policy Rules Engine: Scale, Violation Storage and Shared Compound Rules

Build an expense rules engine. Employees submit expenses, and the engine checks every expense against a company's expense policy rules and reports the...

Software Engineering FundamentalsLow-Level Design (OOP)Graphs
17
0
111 people solved
Oct 23, 2026
Google logo
Google
Medium
Software EngineerIntern

Maximum Value from Unit-Weight Items with Limited Copies Under a Capacity

You are packing items into a bag that can hold a total weight of at most capacity. There are n item types. Every copy of item type i weighs exactly 1 ...

Coding & AlgorithmsGreedySorting
68
1
550 people solved
Oct 9, 2026
Google logo
Google
Easy
Software EngineerIntern

Count Tree Nodes Greater Than Every Cross-Subtree Pair Sum and Product

Given a binary tree of integers, count the nodes whose value is larger than every sum and every product that can be formed by taking one value from th...

Coding & AlgorithmsTrees
4
0
37 people solved
Nov 8, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Fewest Node Additions and Removals to Make a Binary Tree Perfect

A binary tree is perfect when every node has either zero or two children and every leaf is at the same depth. The interview first asked whether a give...

Coding & AlgorithmsTrees
26
0
198 people solved
Oct 17, 2026
Amazon logo
Amazon
Hard
Software Engineer

Look Up a Book Title Typed with Missing or Extra Spaces

A library holds a list of book titles. Given a title typed by a user, decide whether that title is in the library. The typed title may have extra spac...

Software Engineering FundamentalsString AlgorithmsDynamic Programming
7
0
69 people solved
Oct 21, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, Zoho, TikTok, Apple, Rokt, Infosys, TCS, ByteDance, Snowflake, Oracle, Accenture

Hard
Software Engineer

Match an Entire String with Dot and Star

Problem Determine whether the pattern pattern matches all of the string text. Return a boolean result. A pattern element is either a lowercase English...

Coding & AlgorithmsString AlgorithmsDynamic Programming
13
1
100 people solved
OpenAI logo
OpenAI
Hard
Software EngineerNew Grad

Cheapest Daily Shirt Colors With No Color Repeated on Consecutive Days

A store has a sale on blue, green and red shirts for the next n days. On day i, a blue shirt costs blue_costs[i] dollars, a green shirt costs green_co...

Coding & AlgorithmsDynamic Programming
28
0
328 people solved
Oct 6, 2026
Snowflake logo
Snowflake
Hard
Software Engineer

N-ary Tree Deletion with Children Moving Up: Height After Deletes and Fewest Deletions

You are given a rooted N-ary tree: every node can have any number of children. Deleting a node does not delete its subtree. The node is removed, and e...

Software Engineering FundamentalsTreesGreedy
5
2
66 people solved
Oct 21, 2026
Elevenlabs logo
Elevenlabs
Medium
Software Engineer

Longest Spoken Prefix with Repeated Words: Review an LCS Version, Then Rewrite It

A voice agent receives a script from a language model, want_to_speak, and produces a transcript of what it has actually said, spoken_text. The script ...

Software Engineering FundamentalsTwo Pointers & Sliding WindowCode Quality & Maintainability
0
0
16 people solved
Nov 8, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

Fewest Node Deletions to Cap an N-ary Tree's Height at k

A rooted tree has n nodes numbered 0 to n - 1, and each node can have any number of children. Node 0 is the root. Deleting a node attaches its childre...

Coding & AlgorithmsTrees
17
0
153 people solved
Oct 12, 2026
Google logo
GoogleBloombergMeta

Also asked at Meta, Amazon, Microsoft, TikTok, Airbnb, Walmart Labs, Confluent, LinkedIn, Apple, ByteDance, Pinterest, Yahoo, Zoho, Infosys, Mastercard, Deshaw, Salesforce, Pornhub

Medium
Software Engineer

Enumerate Reusable-Value Target Combinations

Problem Given the array choices of distinct integers and the integer goal, return every unique combination of values from choices whose sum is goal. Y...

Coding & AlgorithmsBacktracking & RecursionDynamic Programming
10
0
67 people solved
Infosys logo
InfosysGoogleMicrosoft

Also asked at Microsoft, Amazon, Meta, Apple, Bloomberg, LinkedIn, TikTok, Cisco, Zoho, Swiggy, Flipkart, Axon, JPMorgan Chase, IBM

Medium
Software Engineer

Count the Fewest Character Edits

Problem Return the fewest single-character edits needed to change the string before into the string after. One edit may insert a character, delete a c...

Coding & AlgorithmsDynamic Programming
10
0
84 people solved
OpenAI logo
OpenAI
Hard
Software EngineerNew Grad

Count Ordered Four-Shop Road Paths That Visit One Shop of Each Type

You need to buy school supplies at four different kinds of shop: a bookshop for a workbook, a school-supply shop for glue, a sports store for a pair o...

Coding & AlgorithmsGraphs
11
0
161 people solved
Oct 3, 2026
Amazon logo
Amazon
Hard
Software Engineer

Minimum Priority Conflicts When Interleaving Two Lowercase Strings

You are given two strings, primary (length m) and secondary (length n), made of lowercase English letters. Merge them into one string of length m + n ...

Coding & AlgorithmsDynamic Programming
27
0
448 people solved
Sep 30, 2026
Meta logo
Meta
Medium
Software EngineerSenior+

Maximum Character Coverage From Words With No Shared Letters

You are given a list of words and an alphabet. Choose a subset of the words such that no two chosen words share even one character. The coverage of a ...

Coding & AlgorithmsBacktracking & RecursionBit Manipulation
2
0
28 people solved
Nov 1, 2026
Visa logo
Visa
Medium
Software EngineerSenior+

Maximize Index-Weighted Array Sum When Each Element Swaps at Most Once

You are given an integer array nums. You may swap elements, choosing any two positions for each swap, but every element may take part in at most one s...

Coding & AlgorithmsDynamic ProgrammingBit Manipulation
16
0
151 people solved
Oct 2, 2026
Snowflake logo
Snowflake
Medium
Software Engineer

N-ary Tree Height After Deleting Nodes and Reattaching Their Children

A rooted tree has n nodes numbered 0 to n - 1, and each node can have any number of children. Node 0 is the root. You are given the tree as a parent a...

Coding & AlgorithmsTrees
14
0
113 people solved
Oct 12, 2026
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