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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
435
Companies
980
Updated
11.12.2026
435 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
Medium
Software Engineer

Find the Longest Substring without Repeated Characters

Given a string, find the maximum length of a contiguous substring containing no repeated character. Constraints and Clarifications Use a length-only r...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
14 people solved
Jan 14, 2026
Microsoft logo
Microsoft
Medium
Software Engineer

Check a Linked List Palindrome Without Mutating It

Implement linked_list_palindrome(values), where values is the traversal-order serialization of a singly linked list of integer values. Return whether ...

Coding & AlgorithmsLinked ListsTwo Pointers & Sliding Window
4
0
42 people solved
Apr 11, 2026
Google logo
GoogleMicrosoftAmazon
Hard
Software Engineer

Largest Forward Path Sum Across Two Increasing Arrays

Problem Begin at the first entry of either strictly increasing array and move left to right. At a value present in both arrays,you may switch to the o...

Coding & AlgorithmsTwo Pointers & Sliding WindowGreedy
0
0
7 people solved
Amazon logo
AmazonGoogleYelp
Medium
Software Engineer

Shortest Substring with Exactly k Ones and Lexicographic Ties

Shortest Substring with Exactly k Ones and Lexicographic Ties You are given a binary string s and a positive integer k. A beautiful substring is a con...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
9 people solved
Roblox logo
Roblox
Medium
Machine Learning Engineer Locked

Find target-heavy sliding windows

This question evaluates array manipulation, counting and efficient algorithm design—focusing on the sliding-window technique for detecting and quantif...

Coding & AlgorithmsTwo Pointers & Sliding Window
14
0
132 people solved
Feb 27, 2026
Walmart Labs logo
Walmart Labs
Medium
Software Engineer

Implement lexicographically smallest Two Sum

You are given an unsorted integer array nums and an integer target. Return the indices [i, j] (0-based) such that i < j and nums[i] + nums[j] == targe...

Coding & AlgorithmsArrays & Strings
37
0
413 people solved
Mar 4, 2026
Google logo
GoogleMicrosoftBloomberg

Also asked at Bloomberg, Meta, LinkedIn, Zoho

Easy
Software Engineer

Check Whether Repeated Keystrokes Can Produce a Typed Name

Problem Each character of name must be typed in order, but a long press may repeat that character one or more times. Return whether typed could result...

Coding & AlgorithmsTwo Pointers & Sliding WindowArrays & Strings
1
0
9 people solved
Pinterest logo
Pinterest
Medium
Software Engineer

Solve set equality and ad log top‑K

Problem Set (Coding) 1) Check whether two sets are equal You are given two integer arrays A and B that represent sets, except they may contain duplica...

Coding & AlgorithmsHeaps & Priority QueuesData Structure Design
31
0
311 people solved
Nov 11, 2025
Amazon logo
AmazonGoogleGoldman SachsBloomberg

Also asked at Goldman Sachs, Bloomberg

Medium
Software Engineer

Find a Same-Direction Cycle in a Circular Array

Find a Same-Direction Cycle in a Circular Array You are given a circular array nums of nonzero integers. From index i, move forward by nums[i] positio...

Coding & AlgorithmsGraphsTwo Pointers & Sliding Window
0
0
4 people solved
Google logo
Google
Easy
Software Engineer

Detect Equal Sums among Different Adjacent Pairs

Problem Return whether nums contains two length-two contiguous subarrays with the same sum and different starting indices. The subarrays may overlap; ...

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

Longest Single-Letter Substring After at Most k Character Changes

You are given a string s of uppercase English letters and an integer k. You may perform at most k operations; each operation changes one character of ...

Coding & AlgorithmsTwo Pointers & Sliding Window
1
0
19 people solved
Jul 17, 2026
Microsoft logo
MicrosoftGoogleAmazon

Also asked at Amazon, Meta, Bloomberg

Medium
Software Engineer

Compute the Chance of Finishing below a Score Limit

Problem Start at 0 points. While the score is below k, independently draw a uniformly random integer from 1 through maxPts and add it. Stop as soon as...

Coding & AlgorithmsDynamic ProgrammingProbability
1
0
9 people solved
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Microsoft, Bloomberg, Criteo, IBM, TCS, Yandex

Easy
Software Engineer

Return Shared Array Occurrences with Minimum Multiplicity

Problem Return the multiset intersection of nums1 and nums2: a value occurring a times in the first and b times in the second appears min(a,b) times i...

Coding & AlgorithmsArrays & StringsTwo Pointers & Sliding Window
0
0
8 people solved
Pinterest logo
Pinterest
Medium
Machine Learning Engineer Locked

Solve five hard algorithm problems

This set of problems evaluates algorithm design and problem-solving skills across array manipulation, range-update techniques, load-balancing and part...

Coding & AlgorithmsArrays & StringsGreedy
10
0
159 people solved
Mar 8, 2026
NVIDIA logo
NVIDIA
Hard
Software Engineer Locked

Implement short algorithms on logs, grids, and strings

This multi-part Coding & Algorithms question evaluates algorithmic problem-solving skills and mastery of core competencies including temporal window r...

Coding & AlgorithmsArrays & Strings
24
0
245 people solved
Feb 11, 2026
Two Sigma logo
Two Sigma
Easy
Data Scientist

Match readings with latest same-city humidity

Problem You are given two time-sorted lists of sensor readings: - Temperature records: (time, city, reading) - Humidity records: (time, city, reading)...

Coding & AlgorithmsTwo Pointers & Sliding Window
24
2
270 people solved
Dec 15, 2025
Bloomberg logo
Bloomberg
Medium
Software Engineer

Implement sliding-window timestamped average

Problem Implement a class that maintains a time-based sliding window of records and can return the average score within the current window. Requiremen...

Coding & AlgorithmsData Structure DesignStacks & Queues
14
0
195 people solved
Feb 12, 2026
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
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
Amazon logo
AmazonGoogleMeta

Also asked at Meta, Bloomberg, Microsoft, Infosys

Medium
Software Engineer

Count Subsequences with a Bounded Minimum-Plus-Maximum

Problem Count nonempty subsequence occurrences whose minimum value plus maximum value is at most target. A single selected value contributes twice its...

Coding & AlgorithmsTwo Pointers & Sliding WindowSorting
0
0
7 people solved
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