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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
Microsoft logo
Microsoft
Medium
Software Engineer

Minimum Ship Capacity to Deliver Ordered Packages Within a Day Limit

A line of packages waits at a dock, and a ship must carry all of them to their destination. The ship makes one trip per day and has a fixed weight cap...

Coding & AlgorithmsBinary Search
1
0
25 people solved
Aug 4, 2026
Google logo
GoogleAmazonMicrosoft
Medium
Software Engineer

Best Nonempty Subarray After At Most One Erasure

Problem Choose a contiguous subarray of arr and optionally erase one of its elements. At least one chosen element must remain. Return the greatest sum...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
11 people solved
Google logo
Google
Easy
Software Engineer

Shortest Distance Between Two Words, Then a Word-List Class With an Anagram Check

You are given a list of words, which may contain repeats, and two words word1 and word2. Return the smallest distance between an occurrence of word1 a...

Software Engineering FundamentalsArrays & Strings
2
0
26 people solved
Jun 28, 2026
Google logo
GoogleBloombergAmazonOracle

Also asked at Amazon, Oracle

Medium
Software Engineer

Reverse Every Parenthesized Segment From Inside Out

Problem The balanced string s contains lowercase letters and parentheses. Reverse the text inside each matching pair, beginning with inner pairs. Remo...

Coding & AlgorithmsStacks & QueuesArrays & Strings
0
0
9 people solved
IBM logo
IBMGoogle
Medium
Software Engineer

Insert the Fewest Letters to Form Repeated abc Blocks

Problem Insert any number of letters a, b, or c anywhere in word without deleting or reordering its existing characters. Return the minimum insertions...

Coding & AlgorithmsGreedyArrays & Strings
1
0
14 people solved
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Microsoft, Meta, Walmart Labs, NVIDIA, American Express, Loda, TCS, Apple, Snowflake, Oracle, TikTok, Uber, Goldman Sachs, Snapchat, Infosys, Adobe, SoFi, eBay, Salesforce

Medium
Software EngineerNew Grad

Find the K Most Frequent Values

Given a nonempty integer array and an integer k, return any valid collection of the k distinct values with the highest occurrence frequencies. A selec...

Coding & AlgorithmsHeaps & Priority QueuesArrays & Strings
5
0
76 people solved
Oracle logo
Oracle
Medium
Software Engineer

Check That a String of Three Bracket Types Is Properly Nested

Given a string made only of the six bracket characters (, ), [, ], { and }, decide whether its brackets are properly nested. Function Signature `pytho...

Coding & AlgorithmsStacks & Queues
4
0
35 people solved
Sep 9, 2026
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Check Whether a String Is a Signed Decimal Number Without Exponent Notation

Write a function that decides whether a string is a valid plain decimal number with an optional sign and fractional part, rejecting exponents, stray s...

Coding & AlgorithmsParsing & Interpreters
7
0
84 people solved
Sep 6, 2026
Natwest logo
NatwestGoogle
Medium
Software Engineer

Count Top-Left-Anchored Submatrices Within a Sum Limit

Count Top-Left-Anchored Submatrices Within a Sum Limit You are given an m by n integer matrix grid and an integer k. Return the number of nonempty con...

Coding & AlgorithmsGrids & MatricesArrays & Strings
1
0
12 people solved
Jane Street logo
Jane Street
Medium
Software EngineerIntern

Bottom-Insertion Connect Game: Detect the First k-in-a-Row Winner

Two players, B and R, take turns dropping pieces onto a board that covers the upper half-plane of an integer grid. Columns are indexed by arbitrary in...

Coding & AlgorithmsSimulation & State Machines
43
0
626 people solved
Nov 6, 2025
Arista Networks logo
Arista Networks
Medium
Software Engineer

Fewest Adjacent-Sum Merges to Turn an Array Into a Palindrome

You are given an array of positive integers. In one operation, you choose two adjacent elements and replace them with a single element equal to their ...

Coding & AlgorithmsTwo Pointers & Sliding WindowGreedy
0
0
17 people solved
Jul 11, 2026
Shopify logo
ShopifyAmazonGoogle

Also asked at Google, Microsoft, Apple

Medium
Software Engineer

Simulate Obstacle-Aware Robot Moves and Track the Farthest Point

Problem A robot starts at (0,0) facing north on an unbounded integer grid. Commands -2 and -1 turn90 degrees left and right. A command1 through9 advan...

Coding & AlgorithmsSimulation & State Machines
2
0
19 people solved
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, TCS, Visa

Easy
Software Engineer

Recognize a Rotation of Nondecreasing Values

Problem Return whether nums can be obtained by rotating a nondecreasing array by some number of positions, including zero. Duplicate values are allowe...

Coding & AlgorithmsArrays & Strings
0
0
10 people solved
Amazon logo
AmazonGoogleMicrosoftCouchbase

Also asked at Microsoft, Couchbase

Easy
Software Engineer

Place Even Values at Even Indices and Odd Values at Odd Indices

Problem Exactly half the values in nums are even and half are odd. Rearrange the array so every index has a value of matching parity: even indices con...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
13 people solved
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Pinterest, Microsoft, Snapchat, Alphonso, UKG, Uber, Meta, Infosys, Zeta Global, Tekion, Deloitte, Deshaw, Samsung, PhonePe, Nutanix, Yugabyte

Hard
Software Engineer

Minimize the Largest Sum of Exactly k Contiguous Parts

Minimize the Largest Sum of Exactly k Contiguous Parts Split an array nums into exactly k nonempty contiguous subarrays. Every element must belong to ...

Coding & AlgorithmsBinary SearchGreedy
0
0
8 people solved
Uber logo
Uber
Medium
Software Engineer

Count Substrings with Almost-Even Letter Counts

Problem Count the nonempty contiguous substrings of word in which no more than one letter occurs an odd number of times. The input uses only lowercase...

Coding & AlgorithmsBit ManipulationArrays & Strings
2
1
22 people solved
Microsoft logo
MicrosoftAmazonGoogle

Also asked at Google, IBM, Qualcomm

Hard
Software Engineer

Lexicographically Greatest Contiguous Substring

Problem Return the lexicographically greatest nonempty contiguous substring of s. Standard lexicographic order treats a proper prefix as smaller than ...

Coding & AlgorithmsTwo Pointers & Sliding WindowString Algorithms
0
0
10 people solved
Applied Intuition logo
Applied Intuition
Medium
Machine Learning Engineer

Design Ordered CUDA Reduction

In CUDA, a parallel reduction can produce different results if the combination order is not fixed, especially for floating-point arithmetic where addi...

Software Engineering FundamentalsGPU Programming
12
0
107 people solved
Apr 14, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Count Pairs of Cyclically Equivalent Integers

Count unordered index pairs whose non-negative integers have decimal strings equivalent under cyclic rotation. The algorithm challenge emphasizes a pr...

Coding & AlgorithmsArrays & Strings
14
0
194 people solved
Jul 21, 2026
Google logo
GoogleAmazonMetaZoho

Also asked at Meta, Zoho

Easy
Software Engineer

Replace Each Value by Its Original Suffix Maximum

Problem Replace arr[i] by the largest original value strictly to its right. The final element becomes -1 because it has no right neighbor. Modify the ...

Coding & AlgorithmsArrays & Strings
0
0
8 people solved
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