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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
Machine Learning EngineerIntern

Find pairs with the minimum absolute difference

Given an integer array (not necessarily sorted), find the minimum absolute difference between any two distinct elements. Return all pairs of values th...

Coding & AlgorithmsSorting
11
0
207 people solved
Feb 9, 2026
Google logo
Google
Medium
Data Scientist

Compute precision–recall curve on imbalanced data

You receive a CSV with columns: actual_label ∈ {0,1} and predicted_prob ∈ [0,1]; the positive class rate is ≈5%. a) Which evaluation metrics would you...

Coding & AlgorithmsModel EvaluationML Coding
19
0
143 people solved
Oct 13, 2025
Google logo
GoogleBloombergAmazonMeta

Also asked at Amazon, Meta

Medium
Software Engineer

Count All Maximum-Length Strictly Increasing Subsequences

Problem Return the number of longest strictly increasing subsequences in nums. Subsequences preserve index order but need not be contiguous. Different...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
9 people solved
Google logo
Google
Medium
Software Engineer

Fully Expand Replacement Placeholders

Problem You are given replacements, a list of [key, value] pairs, and a string text. Each key is a unique uppercase English letter. A placeholder such...

Coding & AlgorithmsParsing & InterpretersGraphs
0
0
12 people solved
Amazon logo
AmazonIBM
Medium
Software Engineer

Partition a String into the Fewest Duplicate-Free Pieces

Problem Cut lowercase s into nonempty contiguous substrings so each character belongs to exactly one piece and no letter repeats within any piece. Ret...

Coding & AlgorithmsGreedyArrays & Strings
0
0
10 people solved
BlackRock logo
BlackRock
Medium
Software Engineer

Reach Binary Patterns by Sorting Subsequences

Reach Binary Patterns by Sorting Subsequences You are given a binary string s and an array of strings strs, each of the same length as s. Every target...

Coding & AlgorithmsGreedyArrays & Strings
1
0
10 people solved
Google logo
Google
Medium
Software Engineer

Count Adjacent Substring Pairs With the Same Set of Distinct Letters

Given a string s of lowercase English letters, two non-empty strings form a magical pair when they contain exactly the same set of distinct characters...

Coding & AlgorithmsArrays & Strings
1
0
9 people solved
Jul 20, 2026
Bloomberg logo
BloombergGoogleSumologic
Medium
Software Engineer

Minimize Position Mismatches Using Allowed Swaps

Problem source and target have equal length. An entry [a,b] in allowedSwaps permits exchanging source positions a and b any number of times, in any or...

Coding & AlgorithmsGraphsArrays & Strings
1
0
8 people solved
Amazon logo
AmazonGoogle
Medium
Software Engineer

Least Permutation Strictly Above a Target

Problem You are given strings s and target of the same length, containing only lowercase English letters. Return the lexicographically smallest permut...

Coding & AlgorithmsGreedyArrays & Strings
0
0
8 people solved
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Deshaw, Bloomberg, Chubb

Medium
Software Engineer

Sum Every Subarray's Maximum-Minus-Minimum

Problem For each nonempty contiguous subarray of nums, its range is the largest value minus the smallest value in that subarray. Return the sum of the...

Coding & AlgorithmsStacks & QueuesArrays & Strings
1
0
11 people solved
Uber logo
Uber
Medium
Software Engineer

Implement binary search from scratch

Question Implement binary search on a sorted integer array without using any library helpers (no bisect, Arrays.binarySearch, etc.). Provide both iter...

Coding & AlgorithmsBinary Search
22
0
167 people solved
Aug 1, 2025
Google logo
GoogleMicrosoftAmazon
Medium
Software Engineer

Minimize the Longest Jump on a Round Trip through Ordered Stones

Problem The frog starts at stones[0]=0, must reach the last stone, then return to the first. It may jump to each stone at most once; the initial place...

Coding & AlgorithmsGreedyArrays & Strings
0
0
8 people solved
Asana logo
Asana
Medium
Software Engineer

Implement core puzzle/array/grid routines

You may be asked to solve one or more of the following coding exercises (write clean, testable code; discuss time/space complexity): 1) Jigsaw assembl...

Coding & AlgorithmsBacktracking & RecursionSimulation & State Machines
54
0
446 people solved
Jan 7, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Thread Safety, Deadlock Prevention, and Arrays vs Linked Lists

In a rapid-fire concepts segment of a software engineering interview, the interviewer asked four short questions in a row about concurrency and basic ...

Software Engineering FundamentalsConcurrencyLinked Lists
1
0
14 people solved
Aug 4, 2026
Adobe logo
Adobe
Medium
Software Engineer

Maximize pay by flipping k rest days

Given integers BasePay and Bonus, a binary string schedule of length n where '1' means work and '0' means rest, and an integer k, you may change up to...

Coding & AlgorithmsGreedy
23
1
171 people solved
Sep 6, 2025
Bloomberg logo
BloombergAmazonGoogleMeta

Also asked at Google, Meta

Medium
Software Engineer

Check Whether Bounded Jumps Reach the Final Index

Problem Start at index zero of binary string s, whose first character is zero. From i you may jump to a zero-valued position j satisfying i+minJump <=...

Coding & AlgorithmsDynamic ProgrammingTwo Pointers & Sliding Window
0
0
10 people solved
LinkedIn logo
LinkedIn
Medium
Software Engineer Locked

Can You Place N Objects?

This question evaluates array traversal, adjacency-constraint reasoning, and greedy placement intuition, emphasizing handling of boundary conditions a...

Coding & AlgorithmsGreedyArrays & Strings
15
0
123 people solved
Mar 22, 2026
Amazon logo
AmazonGoogleMetaMicrosoft

Also asked at Meta, Microsoft

Medium
Software Engineer

Equalize All Mirrored Pair Sums

Problem The array nums has even length. One move replaces one entry by an integer in [1,limit]. Make every mirrored pair (i,n-1-i) have the same sum, ...

Coding & AlgorithmsArrays & Strings
1
0
10 people solved
Bridge logo
Bridge
Medium
Software Engineer

Design Minesweeper and Optimize Click Performance

Design a Minesweeper game. At game start, initialize an m×n board by randomly placing k bombs. Implement: ( 1) printBoard(): return a human-readable s...

Coding & AlgorithmsSimulation & State MachinesGrids & Matrices
29
0
235 people solved
Aug 7, 2025
Amazon logo
AmazonGoogleBloomberg
Hard
Software Engineer

Count Arithmetic Subsequences

Count Arithmetic Subsequences Given an integer array nums, return the number of subsequences of length at least three whose consecutive values have th...

Coding & AlgorithmsDynamic ProgrammingMath & Number Theory
0
0
7 people solved
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