Google Software Engineer Interview Questions
Google Software Engineer interview questions typically test core algorithmic problem solving, clean coding under time pressure, and — for mid-to-senior levels — system design and scalability thinking. The process is multi-stage: a recruiter screen followed by one or two timed technical screens (often live coding on a shared Google Doc), then a virtual or onsite loop with several 45-minute interviews that mix coding, design (L4/L5+), and behavioral “Googleyness” assessments. Interviewers evaluate general cognitive ability, role-related technical depth, leadership, and culture fit, and candidates should expect iterative feedback and a hiring-committee review before team matching. ([leetcopilot.dev](https://leetcopilot.dev/blog/google-coding-interview-guide-2026?utm_source=openai)) For interview preparation focus on timed practice of data-structures and algorithms, simulate coding on Google Docs, and prepare concise STAR-style stories that show impact and collaboration; senior candidates must add targeted system-design drills that discuss trade-offs, reliability, and scaling. Allow several weeks of structured practice, rehearse clear verbal explanations, and be ready to ask clar
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Implement frequency + distance top‑K queries
You will implement solutions for two coding interview questions. Question 1: Return the top‑K points by frequency (with distance tie‑break) You are gi...
Solve matrix groups and recipe inventory
Problem 1: Find the smallest 3×3 group in a matrix You are given an m × n 2D integer array grid. - Partition the grid into non-overlapping 3×3 blocks,...
Detect and remove matched words in a char stream
You are processing a stream of characters (arriving one-by-one). You are also given a list of target words. Each time a new character arrives, it is a...
Compute minimax grid path and network delay
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Determine whether two nodes are related
Problem You are given genealogy information for a set of chickens. The data consists of parent → child relationships (e.g., (parentId, childId) pairs)...
Min deletions to avoid overlap in first k
You are given two integer arrays list1 and list2 and an integer k. You may delete elements from list2 (deletions can be at any positions). The relativ...
Find cheapest common ancestor in a tree
Coding You are given a rooted tree where each node has: - an integer price - a pointer to its parent (root has parent = null) - a list of children Giv...
Build a next-word frequency predictor
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Find median of merged RLE arrays
Problem You are given two run-length encoded (RLE) arrays A and B. Each is sorted by value in non-decreasing order. - Each element is a pair (value, f...
Solve order-statistics and XOR-triplet problems
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Solve graph and linked list tasks
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Compute minimum number of rooms needed
Problem You are given a list of meetings, each with a start time and end time. A single room can host only one meeting at a time. Two meetings overlap...
Min boards to cover roof holes
You are given an m x n binary grid roof representing a roof surface: - roof[i][j] = 1 means the cell is intact. - roof[i][j] = 0 means the cell is a h...
Answer core teamwork and conflict stories
You are in a behavioral interview. Prepare to answer the following prompts using concrete examples from your experience. Prompts 1. Describe a challen...
Compute distance-sum from every tree node
Problem You are given an undirected tree with n nodes labeled 0..n-1 and a list of n-1 edges. The tree is connected and contains no cycles. For each n...
Compute minimum servers for cyclic tasks
You are given a list of tasks running on servers. Each task is represented as a pair (start, duration): - start is the start time in minutes from the ...
Design street-view image ingestion and storage system
Prompt Design a system to ingest, store, and process street-level images for a "Street View"-like product. Scenario - A fleet of taxis is equipped wit...
Recommend top-K movies from similarity graph
Movie Recommendation: Top K You are building a simple movie recommendation feature. Input - A set of movies 0..(M-1). - An undirected similarity graph...
Check pivot after removing one element
You are given an integer array nums (values may repeat and may be negative). You must remove exactly one element (remove one index). The remaining ele...
Compute distance to nearest taxi in grid
You are given an R x C grid representing a city map. - grid[r][c] = 1 means there is a taxi located at cell (r, c). - grid[r][c] = 0 means the cell is...