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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
1.5k
Companies
980
Updated
11.12.2026
1.5k 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
Google logo
GoogleMetaAmazon

Also asked at Amazon, TCS, Microsoft, Bloomberg, Infosys, Apple, Altimetrik, Yandex, BCG, CleverTap, Oracle, Axon, HCL, Comcast, Walmart Labs, TikTok, Zoho

Easy
Software Engineer

Compare Normalized ASCII Phrase Symmetry

Problem Check whether a string reads the same backward after removing every non-alphanumeric character and treating uppercase letters as lowercase. Al...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
3
0
23 people solved
Amazon logo
Amazon
Medium
Software EngineerSenior+

Reverse the Characters of an ASCII String

Write a function that returns a string with its characters in reverse order. The report names this warm-up only as reversing a string. This version fi...

Coding & AlgorithmsArrays & Strings
1
0
9 people solved
Oct 31, 2026
Capital One logo
Capital One
Hard
Software Engineer

Sum of Distinct Values on the Borders of All Maximum-Sum Square Frames

You are given a rectangular matrix of integers and an integer frame_size. A frame is any square submatrix made of frame_size consecutive rows and fram...

Coding & AlgorithmsGrids & Matrices
5
0
100 people solved
Sep 10, 2026
Vanta logo
Vanta
Medium
Software Engineer Locked

Keep the First Occurrence of Every Globally Unique Line

Remove repeated lines globally while preserving first-occurrence order, exact case, spaces, and empty lines.

Coding & AlgorithmsArrays & Strings
14
0
219 people solved
Sep 12, 2026
JPMorgan Chase logo
JPMorgan ChaseBloombergDoorDash

Also asked at DoorDash, SoFi, Microsoft, Google, Oracle, Yandex, IXL Learning

Medium
Software Engineer

Fewest Replacements Making One String an Anagram

Problem The lowercase strings s and t have equal length. One operation replaces any character of t with another character. Return the minimum operatio...

Coding & AlgorithmsArrays & Strings
4
0
43 people solved
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, TCS, Microsoft, Oracle, Infosys, TikTok, Yandex, LinkedIn, Goldman Sachs, Grammarly, Walmart Labs, NVIDIA, Zoho, PayPal, NewsBreak, Apple, Autodesk

Medium
Software Engineer

Search a Rotated Increasing Array

Problem You receive an integer array values and an integer key. The array was originally in strictly increasing order. It may have been left unchanged...

Coding & AlgorithmsBinary Search
1
0
28 people solved
Glean logo
Glean
Medium
Software Engineer

Make k Cuts in a Row of Positive Values to Maximize the Smallest Piece Sum

You are given an array sweetness of positive integers describing consecutive chunks of a bar, and an integer k. Make exactly k cuts to split the bar i...

Coding & AlgorithmsBinary SearchGreedy
5
0
53 people solved
Sep 30, 2026
Anthropic logo
Anthropic
Hard
Software Engineer Locked

Convert Streaming Call-Stack Samples into Function Events

Convert timestamped call-stack samples into ordered function start and end events, preserving frame depth and recursive occurrences. Handle stack chan...

Coding & AlgorithmsArrays & StringsStacks & Queues
155
2
1121 people solved
Aug 5, 2026
Indeed logo
Indeed
Medium
Software Engineer Locked

Implement Get and Insert in an Unrolled Linked List

Implement indexed get and insert in an unrolled linked list, preserving block capacity, occupancy, sequence order, and split behavior.

Coding & AlgorithmsLinked ListsData Structure Design
6
0
109 people solved
Sep 16, 2026
Visa logo
Visa
Hard
Software EngineerSenior+

Minimize Completion Time with Specialized Workers

There are n workers and m tasks. Each task has one designated proficient worker. That worker takes one hour to perform it; any other worker takes two ...

Coding & AlgorithmsBinary SearchIntervals & Scheduling
1
0
16 people solved
Oct 17, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, TCS

Easy
Software Engineer

Measure the Final Word Before Trailing Spaces

Problem Given the string s, return the length of its final word. A word is a maximal contiguous sequence of characters other than the ordinary space c...

Coding & AlgorithmsArrays & Strings
3
0
26 people solved
Retell AI logo
Retell AI
Medium
Software EngineerNew Grad Locked

Two-Level Flight Search System with Weekly Schedules and Arrival Times

Implement an in-memory flight search system in two levels: add, delete, count and search flights by route, then add weekly schedules with per-day canc...

Software Engineering FundamentalsData Structure DesignLow-Level Design (OOP)
8
0
58 people solved
Sep 19, 2026
Plaid logo
Plaid
Medium
Software Engineer Locked

Validate and Resolve Chained Decision Rules

Validate a table of named rules whose results may reference other rules, then determine whether every rule resolves without missing references or cycl...

Coding & AlgorithmsGraphsArrays & Strings
72
0
634 people solved
Aug 4, 2026
Amazon logo
Amazon
Medium
Software EngineerIntern

Longest Run of Healthy Log Entries After One Exactly-k Maintenance Window

A service records its health in a log string, one character per time step: 1 means the service was running normally at that step and 0 means it had fa...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
11 people solved
Oct 24, 2026
LinkedIn logo
LinkedIn
Medium
Software EngineerSenior+

Largest Sum of a Non-Empty Contiguous Subarray

Given an integer array nums, return the largest sum of any non-empty contiguous subarray. Function Signature `python def max_subarray_sum(nums: list[i...

Coding & AlgorithmsDynamic Programming
7
0
50 people solved
Sep 29, 2026
Airwallex logo
Airwallex
Medium
Software Engineer

Find All Index Quadruples Summing to a Target Without Losing Positions

Given an integer array nums and an integer target, return every quadruple of indices (i, j, k, l) with i < j < k < l such that nums[i] + nums[j] + num...

Coding & AlgorithmsArrays & Strings
8
0
67 people solved
Sep 22, 2026
DRW logo
DRW
Easy
Software EngineerIntern

Longest Substring in Which Every Present Letter Occurs Equally Often

A string is balanced if every letter that occurs in it occurs the same number of times. For example, "aabb", "abc" and "zzz" are balanced, while "aab"...

Coding & AlgorithmsArrays & Strings
4
0
45 people solved
Oct 1, 2026
J.P. Morgan logo
J.P. Morgan
Easy
Software Engineer

Minimize String Length by Deleting AB and BB Pairs

Given a string seq containing only A and B, you may repeatedly delete either adjacent substring AB or adjacent substring BB. After each deletion, conc...

Coding & AlgorithmsStacks & QueuesArrays & Strings
7
0
91 people solved
Sep 8, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer

Shortest Substring Containing Every Character of a Pattern

Given two strings s and t, return the shortest contiguous substring of s that contains every character of t, counting repeats: if a character appears ...

Coding & AlgorithmsTwo Pointers & Sliding Window
3
0
45 people solved
Oct 4, 2026
Roblox logo
Roblox
Medium
Software Engineer

Match-3 Grid: Find Horizontal and Vertical Runs, Then Clear and Drop Cells

You are given an m × n grid of positive integers representing a Match-3 game board. A match is a run of 3 or more equal values side by side in one row...

Coding & AlgorithmsGrids & MatricesSimulation & State Machines
12
1
86 people solved
Aug 5, 2026
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