New Grad Coding & Algorithms Interview Questions
New grad coding interviews are algorithm-heavy by design. These coding and algorithms questions were reported from new grad and entry-level interviews, so they sit squarely in the medium-difficulty band that full-time entry-level loops favor: BFS and DFS on graphs, tree problems, sliding window, two pointers, backtracking, and the dynamic programming basics that separate offers from rejections. The skill that gets you through is pattern recognition — spotting which technique a problem wants before you start coding. Drill these real questions to build that instinct under time pressure. Most come with a detailed solution that walks through the approach and complexity, so you learn the pattern, not just the answer.
"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."
Compute Edit Distance
Compute Edit Distance Given two strings, return the minimum number of single-character operations needed to transform the first string into the second...
Search a Pattern Across the Leaf Text of a Binary Tree
Search for a pattern across the left-to-right concatenation of binary-tree leaf strings, including matches that cross leaf boundaries. This algorithm ...
Generate Every Ordered Sum Using Ones and Twos
Generate every ordered string of ones and twos whose digit values sum to a target integer, with no duplicates and lexicographic output. The problem te...
Sort a String of Clothing Sizes
Sort a string containing only S, M, and L into size order in linear time. Extend the discussion to custom token orderings, unknown-size behavior, empt...
Solve tree and DP problems
This coding round contained two algorithm questions: 1. Deepest shared ancestor in a binary tree You are given the root of a binary tree and two ...
Solve Three Array Coding Problems
An online assessment contains the following three independent coding problems. For each problem, write a function that returns the requested value. Us...
Design a restaurant waitlist system
You are implementing the waitlist system for a restaurant. Parties arrive over time, can cancel, and get seated when a table becomes available. Rules ...
SQL: Students Above Average and Passing Every Subject
This question tests practical SQL skills, specifically the use of aggregate functions and conditional filtering across grouped data. It evaluates the ...
Determine If One Binary Tree Is a Substructure of Another
This question evaluates practical tree traversal skills and the ability to implement structural matching between two binary trees. It tests recursive ...
Solve Three Algorithm Variants
You are given three independent coding problems. For each one, describe and implement an efficient solution. 1. Generate queue arrangements - You a...
Solve classic coding interview problems
These problems evaluate algorithmic problem-solving skills including dynamic programming and combinatorics for the egg-dropping scenario, array manipu...
Count Good Numbers up to a Limit
Count Good Numbers up to a Limit A positive integer is good when all of the following hold: 1. Its decimal representation contains no digit 0. 2. No d...
Find the Longest Momentum-Aware Water Path
Find the Longest Momentum-Aware Water Path Given an m × n integer height grid, find the maximum number of cells in a valid path. A path may start at a...
Inventory Allocation by Bid Priority
This question assesses simulation and priority-queue design skills, requiring careful implementation of tiered, round-robin resource allocation under ...
Compute Turnstile Crossing Times
This question evaluates proficiency in queue simulation, event-driven scheduling, and handling priority and tie-breaking rules while achieving linear ...
Transform sparse time-code stream to dense rows
Problem You are given: - A fixed set of M distinct codes (strings). The column order of the output matrix is the lexicographic order of these codes. -...
Caesar Cipher with Translation-Table Optimization
This question tests practical string manipulation and modular arithmetic by requiring implementation of a classic Caesar cipher with correct case-pres...
Implement Notification Rate Limiter
Implement should_send_notifications(user_id, timestamp) -> bool. You are given two mappings: - each user_id belongs to exactly one team_id - each team...
Can one car serve all riders?
This question evaluates understanding of interval scheduling and conflict detection, testing skills in time-interval reasoning, sorting, and efficient...
Simulate In-Place Cellular State Updates
This question evaluates a candidate's ability to implement grid-based state transitions and manage in-place updates with strict space constraints, ass...