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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
Palantir logo
PalantirAmplitudeAtlassian

Also asked at Atlassian, Amazon, Google, Microsoft, Uber, Salesforce, IXL Learning, WeRide

Medium
Software EngineerSenior+

Simulate a Growing Snake on a Grid and Report the Score After Every Move

A snake moves on a rectangular board with height rows and width columns. Cells are written (row, col), with (0, 0) in the top-left corner. The snake s...

Coding & AlgorithmsSimulation & State MachinesStacks & Queues
2
0
41 people solved
Amazon logo
AmazonMetaMicrosoft

Also asked at Microsoft, Capital One, Google, IBM

Medium
Software Engineer

Most Satisfied Customers With One Calm Window

Problem For minute i, customers[i] customers arrive and leave that same minute. They are satisfied exactly when grumpy[i] is 0. Once during the day, t...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
Google logo
GoogleIntuitTikTok

Also asked at TikTok, Amazon, Microsoft, Snapchat, Meta, Oracle, DoorDash, Verkada, Motive

Hard
Software Engineer

Evaluate Parenthesized Integer Arithmetic

Problem Evaluate the valid arithmetic string s containing nonnegative integer tokens, +, -, *, / and parentheses. Apply ordinary precedence, grouping ...

Coding & AlgorithmsParsing & InterpretersStacks & Queues
1
0
17 people solved
Amazon logo
AmazonTCSGoogle

Also asked at Google, Agoda, Meta, Microsoft, Bloomberg

Easy
Software Engineer

Dense Ranks Preserving Value Order and Equality

Problem Replace each value by its smallest possible positive rank: equal values share a rank, and a larger value must have a larger rank. Return ranks...

Coding & AlgorithmsSortingArrays & Strings
0
0
9 people solved
Amazon logo
AmazonGoogleVisa
Medium
Software Engineer

Clipped Square-Neighborhood Sums for Every Matrix Cell

Problem For every cell(i,j), add all original mat[r][c] with row distance at most k and column distance at most k, keeping only valid matrix positions...

Coding & AlgorithmsGrids & MatricesArrays & Strings
0
0
11 people solved
Visa logo
Visa
Medium
Software Engineer

Minimum Travel Cost Between Array Indices

Minimum Travel Cost Between Array Indices You are given a strictly increasing integer array nums and a list of independent queries queries. For an ind...

Coding & AlgorithmsArrays & StringsGraphs
0
0
11 people solved
Moveworks logo
Moveworks
Medium
Software Engineer

Find a secret word via match feedback

Word Guessing Game (Mastermind-style) You are given a list of unique candidate words wordlist. All words have the same length L and contain only lower...

Coding & AlgorithmsGreedy
16
0
320 people solved
Dec 15, 2025
Amazon logo
AmazonGoogleMicrosoft

Also asked at Microsoft, Bloomberg, Meta, TCS, JPMorgan Chase, Infosys, Goldman Sachs, Uber, Yandex

Easy
Software Engineer

Maximize the Average of an Exactly K-Length Segment

Problem Return the greatest average among contiguous subarrays of nums containing exactly k elements. Answers with calculation error less than 10^-5 a...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
9 people solved
Google logo
GoogleAmazonPhonePe

Also asked at PhonePe, Meta, Microsoft

Medium
Software Engineer

Remove the Shortest Block to Restore Divisibility

Problem Remove a contiguous block from the positive integer array nums so that the sum left behind is divisible by p. Removing nothing is permitted; r...

Coding & AlgorithmsArrays & StringsMath & Number Theory
1
0
12 people solved
Google logo
GoogleAmazonBloomberg

Also asked at Bloomberg, Meta, Microsoft, IBM, Infosys, TCS, Goldman Sachs, Arista Networks

Medium
Software Engineer

Erase the Earliest Matching Block Repeatedly

Problem Starting with lowercase string s, repeatedly delete the leftmost occurrence of the nonempty string part. Search the updated string after each ...

Coding & AlgorithmsArrays & Strings
0
0
9 people solved
Capital One logo
Capital One
Medium
Software Engineer

Solve four algorithmic coding tasks

You are given four independent coding tasks. They may be solved in any order, and partial test-case credit is awarded for each task. The tasks are rou...

Coding & AlgorithmsTreesSimulation & State Machines
114
0
776 people solved
Sep 6, 2025
Google logo
GoogleTaniumMicrosoftAmazon

Also asked at Microsoft, Amazon

Medium
Software Engineer

Can Fixed-Length Jumps Reach a Zero?

Problem Begin at index start of the nonnegative array arr. From index i, the next jump must land at i+arr[i] or i-arr[i], and must stay inside the arr...

Coding & AlgorithmsGraphs
1
0
16 people solved
Crusoe logo
Crusoe
Medium
Software EngineerSenior+

Print a binary tree as aligned text

Implement a function that prints (or returns) an ASCII layout of a binary tree. Requirements: - Each node has a string value (assume it contains no sp...

Coding & AlgorithmsTrees
33
0
425 people solved
Jan 1, 2026
Databricks logo
Databricks
Medium
Software Engineer

Implement a sliding-window hit counter

Implement a hit counter that supports recordHit(timestamp) and getHits(pastSeconds). Use a fixed-size array to maintain a sliding time window (e.g., l...

Coding & AlgorithmsData Structure DesignArrays & Strings
36
0
251 people solved
Sep 6, 2025
Infosys logo
InfosysGoogleAmazon

Also asked at Amazon, Meta, Microsoft, Zeta Global, Scaler, Bloomberg

Hard
Software Engineer

Minimize Cuts into Palindromic String Pieces

Problem Split a nonempty string into contiguous palindromic pieces using the fewest cuts. Return the number of cuts, not the pieces. With k pieces the...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
16 people solved
Amazon logo
AmazonGoogleIBM

Also asked at IBM, Oracle, Accenture

Hard
Software Engineer

Fewest Insertions Needed for a Palindrome

Problem Insert any character at any string position in one operation. Return the minimum operations required to turn s into a palindrome, a string equ...

Coding & AlgorithmsDynamic ProgrammingArrays & Strings
0
0
11 people solved
Amazon logo
AmazonGoogleCitadel
Medium
Software Engineer

Longest Subarray with Every Value Occurring at Most k Times

Longest Subarray with Every Value Occurring at Most k Times You are given an integer array nums and an integer k. A subarray is good if every value in...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
0
0
7 people solved
IBM logo
IBMMetaMathWorks
Easy
Software Engineer

Make a Minimum-Change Palindrome with Lexicographic Tie-Breaking

Make a Minimum-Change Palindrome with Lexicographic Tie-Breaking You are given a string s containing only lowercase English letters. One operation rep...

Coding & AlgorithmsTwo Pointers & Sliding WindowGreedy
0
0
8 people solved
Bloomberg logo
BloombergGoogle
Easy
Software Engineer

Sum Squared Values at Special Array Positions

Sum Squared Values at Special Array Positions You are given an integer array nums of length n, described using 1-based positions. Position i is specia...

Coding & AlgorithmsMath & Number TheoryArrays & Strings
0
0
10 people solved
Amazon logo
AmazonBloombergGoogle

Also asked at Google, Meta, Microsoft

Easy
Software Engineer

Count Case-Sensitive Jewel Occurrences

Problem jewels lists distinct character types that count as jewels. stones lists individual stones by character. Return how many stone occurrences hav...

Coding & AlgorithmsArrays & Strings
0
0
6 people solved
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