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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
Oracle logo
Oracle
Medium
Software EngineerSenior+ Locked

Maximum of Fixed-Window Minimums

Find the maximum among all fixed-length sliding-window minima, handling negative values, duplicates, and boundary window sizes with a linear-time appr...

Coding & AlgorithmsTwo Pointers & Sliding WindowStacks & Queues
11
0
103 people solved
Sep 9, 2026
Google logo
GoogleKaratPayPal

Also asked at PayPal, Meta, Microsoft, Bloomberg

Easy
Software Engineer

Total Length of Independently Formable Words

Problem For each word in words, determine whether its letters can be taken from chars, using each occurrence in chars at most once for that word. Rese...

Coding & AlgorithmsArrays & Strings
2
0
17 people solved
Capital One logo
Capital One
Hard
Software Engineer

Solve multiple algorithmic interview questions

Below are several independent coding tasks. For each task, implement a function that returns the required output. Assume: - Arrays/lists are 0-indexed...

Coding & AlgorithmsArrays & Strings
24
0
417 people solved
Feb 12, 2026
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, JPMorgan Chase, Walmart Labs, TCS

Medium
Software Engineer

Maximize a Fixed-Length Window Sum with No Repeated Values

Problem Among contiguous subarrays of nums with length exactly k and no repeated value, return the greatest sum. Return zero if no subarray satisfies ...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
12 people solved
Google logo
GoogleMetaMicrosoftAmazon

Also asked at Microsoft, Amazon

Medium
Software Engineer

Shortest Combined Length of Two Disjoint Target-Sum Windows

Problem Find two nonempty,non-overlapping contiguous subarrays of arr, each summing to target. Return the smallest sum of their lengths,or -1 when no ...

Coding & AlgorithmsDynamic ProgrammingTwo Pointers & Sliding Window
0
0
8 people solved
Google logo
GoogleAmazonMicrosoftBloomberg

Also asked at Microsoft, Bloomberg

Medium
Software Engineer

Count Index Pairs That Disagree with Their Value Difference

Problem A pair of indices (i, j) is bad when i < j and j - i != nums[j] - nums[i]. Return the number of bad pairs in nums as a long long. `cpp class S...

Coding & AlgorithmsArrays & StringsMath & Number Theory
1
0
14 people solved
Sprinklr logo
SprinklrAmazonGoogle
Medium
Software Engineer

Maximize the Total of Two Disjoint Fixed-Length Segments

Problem Choose two non-overlapping contiguous subarrays of nums, one of length firstLen and the other of length secondLen. Either length may occur fir...

Coding & AlgorithmsDynamic ProgrammingTwo Pointers & Sliding Window
0
0
10 people solved
Lyft logo
Lyft
Medium
Software EngineerSenior+ Locked

Minimum Window Substring with Repeated Required Characters

Find the shortest substring covering every required character, including duplicates, with case-sensitive matching and a linear-time minimum-window alg...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
7
0
75 people solved
Sep 8, 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
Capital One logo
Capital OneeBayGoogle

Also asked at Google, Microsoft, Bloomberg

Medium
Software Engineer

Count Alternating Groups around a Circle

Problem The array colors describes tiles arranged in a circle: 0 denotes a red tile and 1 denotes a blue tile. You are also given an integer k. A grou...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
14 people solved
Amazon logo
Amazon
Hard
Software Engineer Locked

Minimize Replacements So Equal Product Values Are Contiguous

Minimize the replacement cost needed so every remaining product value occupies one contiguous block, where one operation changes all occurrences of on...

Coding & AlgorithmsIntervals & Scheduling
18
1
219 people solved
Jul 12, 2026
Amazon logo
AmazonGoogleBloomberg

Also asked at Bloomberg, Meta, Microsoft, Akamai, HP, Ubisoft

Easy
Software Engineer

Find the Longest Palindrome Length From Available Letters

Find the Longest Palindrome Length From Available Letters Given a string s of uppercase and lowercase English letters, return the greatest length of a...

Coding & AlgorithmsArrays & StringsGreedy
0
0
7 people solved
Pinterest logo
Pinterest
Medium
Software Engineer Locked

Maximize Boxes Stored Through One Entrance

This question evaluates array manipulation, constraint reasoning, and optimization skills, touching on greedy and combinatorial allocation concepts un...

Coding & AlgorithmsGreedySorting
13
0
144 people solved
May 19, 2026
Google logo
GoogleMetaAmazon

Also asked at Amazon, Geico, LinkedIn, Bloomberg

Medium
Software Engineer

Maximum Four-Person Families in a Cinema

Problem The cinema has n rows and 10 numbered seats per row. A four-person family may occupy exactly one of these blocks within a row: seats 2..5,4..7...

Coding & AlgorithmsArrays & Strings
1
0
12 people solved
Google logo
GoogleMicrosoftAmazon
Hard
Software Engineer

Most Disjoint Character-Closed Substrings with Minimum Total Length

Problem Choose nonempty,non-overlapping substrings of s. If a chosen substring contains a character,it must contain every occurrence of that character...

Coding & AlgorithmsGreedyIntervals & Scheduling
1
0
13 people solved
Amazon logo
Amazon
Medium
Software Engineer

Discount Only Complete Dollar-Price Words in a Sentence

Problem Words in sentence are separated by one space. A price word is a dollar sign followed only by decimal digits, with at least one digit. Apply di...

Coding & AlgorithmsParsing & InterpretersArrays & Strings
1
0
9 people solved
Yandex logo
YandexMetaGoogle

Also asked at Google, Bloomberg, Microsoft, Amazon

Easy
Software Engineer

Longest Strictly Monotonic Subarray

Longest Strictly Monotonic Subarray Given an integer array nums, return the length of its longest contiguous subarray that is either strictly increasi...

Coding & AlgorithmsArrays & Strings
0
0
11 people solved
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
Google logo
GoogleBloomberg
Medium
Software Engineer

Apply Matching String Replacements Simultaneously

Problem Parallel arrays indices,sources,targets describe replacements in the original string s. At each indices[i], replace sources[i] with targets[i]...

Coding & AlgorithmsArrays & Strings
1
0
21 people solved
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
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