Redfin Interview Guide

Showing 2 questions

Ranking

A question's ranking corresponds to how commonly it's asked by Redfin. The higher the ranking, the more likely you'll encounter it in a Redfin interview.

Question

Frequency

Difficulty

Number of Islands

Given a grid representing land and water, count the number of distinct islands. An island is formed by connected land cells.

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Very likely

If you have a Redfin interview, it's very likely that you will get this question

Medium

#1. Number of Islands

Medium

Given a grid representing land and water, count the number of distinct islands. An island is formed by connected land cells.

ArraysRecursionGraphs

This question is very likely to be asked in your Redfin interview

Top K Frequent Words

Find the k most frequently occurring words in a given list of words. Return the top k words sorted by frequency, and then alphabetically for words with the same frequency.

ArraysStrings

Not likely

If you have a Redfin interview, it's unlikely that you will get this question. Redfin does ask it, but it's rare

Medium

#2. Top K Frequent Words

Medium

Find the k most frequently occurring words in a given list of words. Return the top k words sorted by frequency, and then alphabetically for words with the same frequency.

ArraysStrings

This question is not likely to be asked in your Redfin interview

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