Waymo 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."
Build an Expression That Reaches a Target
Build an Expression That Reaches a Target Given a sequence of integers and a target, insert +, -, or * between adjacent numbers and add parentheses so...
Find the Best Meeting Point on a Grid
Find the Best Meeting Point on a Grid You are given a rectangular grid containing buildings, empty land, and obstacles: - 1 is a building. - 0 is empt...
Compute Max Pooling Values and Coordinates
Practice a Waymo coding interview problem focused on compute max pooling values and coordinates. The prompt emphasizes edge cases, clean implementatio...
Count Squares Formed by Segments
Count Squares Formed by Segments You are given axis-aligned line segments with integer coordinates. Each segment is represented by two endpoints. One ...
Filter Matching Subtrees from an N-Ary Tree
Filter Matching Subtrees from an N-Ary Tree Remove every node whose string value contains a given substring. Removing a node also removes its entire d...
Serialize Expression Tree Minimizing Parentheses
This question evaluates proficiency with binary expression trees, operator precedence and associativity, and the ability to serialize an abstract synt...
Expand Nested Repetition Expressions
This question evaluates understanding of string parsing and nested structure handling, including skills in recursion, stack-based parsing, tokenizatio...
Find Largest Adjacent Sorted Difference
Given an unsorted array of integers nums, compute the largest difference between two consecutive elements after the array is sorted in ascending order...
Determine Complete Interval Coverage
You need to process a stream of real-valued points on a one-dimensional target segment from 0 to 50. Each time a point x arrives, it contaminates the ...
Compute ETA between two map nodes
This question evaluates proficiency in graph algorithms and shortest-path computation, specifically handling weighted directed graphs, non-negative tr...
Validate a Parent-Child Forest
This question evaluates understanding of graph theory concepts—specifically rooted trees, parent-child relationships, cycle detection, and node in-deg...
Generate Instructions for a Blind Maze Robot
You are given a known 2D maze grid with m rows and n columns. Each cell is one of: - #: wall - .: empty cell - E: the exit, which appears exactly once...
Can You Reach the Last Index?
This question evaluates a candidate's understanding of array traversal and reachability in sequences of jumps, along with the ability to reason about ...
Find Shortest Paths to Target Nodes
You are given a weighted directed graph representing distances between nodes. - There are n nodes labeled from 0 to n - 1. - edges[i] = [u, v, w] mean...
Determine earliest collision among moving cars
You are given n cars moving over time. Each car has known initial state at time \(t=0\): - 1D case (straight road): - initial position \(x_i\) (mete...
Debug Tensor Conversion Bugs
You are given a small tensor utility library used in distributed numerical code. The implementation has several bugs related to aliasing, array conver...
Find Shortest Knight Path
This question evaluates a candidate's ability to model grid-based movement as a graph and apply shortest-path traversal techniques, testing algorithmi...
Implement Fibonacci generator, balanced BST, frozenset
This question evaluates proficiency in core data structures and algorithms with a focus on Python-specific features, testing generator semantics (yiel...
Implement Safe Average Function
Write a Python function average(values) that returns the arithmetic mean of a list of numbers. Requirements: - If values is empty, return 0. - The inp...
Implement nested template string substitution
This question evaluates understanding of string processing, dependency resolution, recursive expansion, cycle detection, and efficiency techniques suc...