Upstart Coding & Algorithms Interview Questions
Practice the exact questions companies are asking right now.
"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"
"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"
"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."
"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."
"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."
"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."
"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."
"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."
"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."
"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."
"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."
"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."
"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."
"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."
"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."
Find the Minimum Absolute Difference
Find the Minimum Absolute Difference Implement minimum_absolute_difference(values). Given at least two integers, return the smallest absolute differen...
Sum Multiples of Three, Five, or Seven
Sum Multiples of Three, Five, or Seven Implement sum_multiples(limit). Return the sum of all distinct positive integers strictly less than limit that ...
Solve Five OA Coding Tasks
This is an online-assessment screen consisting of five independent coding tasks. Each task is self-contained — there is no shared state between them —...
Add Dramatic Punctuation to Text
Add Dramatic Punctuation to Text Implement add_drama(text). Preserve all whitespace exactly. For each maximal non-whitespace token, first replace ever...
Count Words in Lexicographic Order
Count Words in Lexicographic Order Implement word_counts(words) for a list of lowercase words. Return a list of (word, count) pairs sorted in ascendin...
Rewrite Sentence-Ending Punctuation
Rewrite Sentence-Ending Punctuation Transform a string in two conceptual steps: 1. Add one extra exclamation mark to every maximal run of existing ! c...
Solve Reported OA Coding Problems
The post describes several algorithm questions from an online assessment. The concrete problems that can be reconstructed are: 1. Remove Blocks in a G...
Implement Three Assessment Functions
An online assessment contains three independent programming tasks. Implement each function clearly and efficiently. 1. Compute coordinate bounds - ...
Scale Ingredient Quantities
Scale Ingredient Quantities Each ingredient is a string in the exact format "<quantity> <unit> <name>". Multiply every quantity by servings and return...
Remove Duplicate Integers While Preserving Order
Remove Duplicate Integers While Preserving Order Return the distinct integers from an input list in the order of their first appearance. Function Sign...
Interleave Three Equal-Length Strings
Interleave Three Equal-Length Strings Given three strings of equal length, build a result by taking the character at index 0 from each string, then th...
Implement four string-processing functions
This question evaluates string-processing and list-manipulation skills, including character membership testing and sequence filtering, reflecting comp...
Implement Byte Formatting and Cafeteria Billing
This question evaluates precision in numeric formatting and unit conversion for byte sizes, along with stateful simulation of capacity-constrained eve...
Decode an anagram sentence using vocabulary constraints
You are given: - vocab: a list of lowercase words (the "dictionary") - s: a string containing space-separated scrambled words Each scrambled word in s...
Decrypt a twice-encrypted message using known pairs
Three people pass notes A → B → C → A. Notes are encrypted using a character-substitution cipher (a one-to-one mapping per character). You are given t...
Design Algorithm for Longest Substring with K Distinct Characters
Scenario Tech interview round 2 – sliding-window algorithm Question Design an algorithm that finds the length of the longest substring containing at m...
Find Minimum Path Sum in Integer Triangle
Scenario Tech interview round 1 – dynamic programming challenge Question Given a triangle of integers, find the minimum path sum from top to bottom. A...
Implement decay simulation and trailing-zero counting
Implement the following in Python: 1) Radioactive decay simulation: Half-life is 1 day. Write a simulation function that takes: - input: integer m ...
Simulate Radioactive Decay to Validate Analytical Solution
Scenario Same radioactive-decay problem, but now validate the analytical answer via simulation during the interview. Question Share screen and write r...
Report Where a Value Appears
Report Where a Value Appears Given a target and an even-length integer list, return four binary flags describing whether the target occurs: 1. at an e...