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Zillow

Zillow Interview Guide

Showing 4 questions

Ranking

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

Question

Frequency

Difficulty

Valid Parentheses

Determine if a string containing parentheses is valid. A valid string has matching and properly nested opening and closing parentheses.

StringsStacks

Very likely

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

Easy

#1. Valid Parentheses

Easy

Determine if a string containing parentheses is valid. A valid string has matching and properly nested opening and closing parentheses.

StringsStacks

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

Number of Islands

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

ArraysGraphs

Somewhat likely

If you have a Zillow interview, you might get this question

Medium

#2. 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.

ArraysGraphs

This question is somewhat likely to be asked in your Zillow interview

Find First and Last Position of Element in Sorted Array

Given a sorted array, find the first and last position of a given target value. If the target is not found, return [-1, -1].

ArraysBinary Search

Not likely

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

Medium

#3. Find First and Last Position of Element in Sorted Array

Medium

Given a sorted array, find the first and last position of a given target value. If the target is not found, return [-1, -1].

ArraysBinary Search

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

Rotate Image

You are given a square matrix representing an image. Rotate the image by 90 degrees clockwise in-place.

ArraysTwo Pointers

Not likely

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

Medium

#4. Rotate Image

Medium

You are given a square matrix representing an image. Rotate the image by 90 degrees clockwise in-place.

ArraysTwo Pointers

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

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