Google Software Engineer Onsite Coding Questions

I recently did an onsite with Google for an L3/L4 position. https://leetcode.com/problems/paint-fence/ The questions I got from Google was very similar to this question. Thought I should give back to the community....

I was recently asked this in the Google Onsite round. Can anyone help with this question? Given the water capacity for each of n unmarked buckets in the form of an...

Company: Google Stage: Onsite Problem :Given a tree having nodes with value 0 and 1. write a function to return the number of islands ? My solution: I Solved this problem with recurssive...

I was asked this question on a google onsite. Given an index and an input string find the char at the given index of the string. But here\'s the catch:...

I had a google virtual onsite round for their lateral hiring. The question I was giving was: Let us say that there is a home and a saloon that you want...

Hey Leetcoders, I had this amazing question given during my onsite interview how this can be solved ??? Given a list of points where each point represents a position of cake...

I had onsite recently with google and had 3 rounds as part of that . I cant share exact question, but can share leetcode question which mostly or completely resemble...

Hey everyone, long post but I need to get this out and maybe hear from people who've been through something similar. Quick timeline: June 2025 — Started the Google interview process End of July 2025 —

Hi All, I want to thank Leetcode community and want to contribute back to the community with my experience with Google. I wont be posting the questions to respect NDA. But...

How many coins can be collected from a game board? Given a string representing a single row board with a maximum length of 100, containing characters '.', 'T', and 'C', representing empty positions, p

Given the number of courses `numCourses` and a list of prerequisite pairs `prerequisites`, where `prerequisites[i] = [a_i, b_i]` indicates that to take course `a_i` you must first complete course `b_i

Given an integer array A, you can choose at most one element and multiply it by -1. The goal is to make the sum of all elements in the array as close to 0 as possible. Return this minimum absolute sum

Given an integer array A, you can split it into two non-empty parts: left and right. Sort each of these parts separately and then concatenate them into a new array. The concatenated array must be non-

### Problem Overview - Build the largest possible integer by selecting at most three digits from the array while preserving their original order. - Input: array 'digits' of length N (3–50) with values

### Problem Overview - Count how many 4-digit codes (digits 0–9, leading zeros allowed) have a digit sum equal to S. - Input: integer S in [0..36]; Output: the number of valid codes. - Context: releva

Google # **🧠 Arrays & Strings (Very High Frequency)** - Two Sum – LeetCode 1 - Best Time to Buy and Sell Stock – 121 - Product of Array Except Self – 238 - Longest Substring Without Repeating Charac

I got this question in my Google interview. Can someone let me know the solution for it ? Q: Given a 2D grid, it contains empty spaces (0) and some walls (1) We can enter the grid from any empty cell

*** # The Ultimate Questions List appeared on multiple platforms ### Arrays, Strings & Two Pointers - [] **Find Longest Duplicated Substring:** Find the longest contiguous sequence of characters that

Hi everyone, I recently completed my google loop, unfortunatly i was rejected because i bombed the round where i was asked this question, i panicked and managed only a brute force with a couple of hin

I recently got a call directly from a recruiter at Google since I had interviewed with them in the past (and declined an offer back then). This was a screening stage with: 1 DSA round 1 Googliness rou