How to Solve Find Books with Polarized Opinions Leetcode Problem - Interview Coder Guide
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How to Solve Find Books with Polarized Opinions Problem

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Easy#3996
LeetCode Problem

Find Books with Polarized Opinions

Table: books +-------------+---------+ | Column Name | Type | +-------------+---------+ | book_id | int | | title | varchar | | author | varchar | | genre | varchar | | pag...

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Problem Breakdown

Understanding the Find Books with Polarized Opinions Problem

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Problem Statement

Table: books +-------------+---------+ | Column Name | Type | +-------------+---------+ | book_id | int | | title | varchar | | author | varchar | | genre | varchar | | pages | int | +-------------+---------+ book_id is the unique ID for this table. Each row contains information about a book including its genre and page count. Table: reading_sessions +----------------+---------+ | Column Name | Type | +----------------+---------+ | session_id | int | | book_id | int | | reader_name | varchar | | pages_read | int | | session_rating | int | +----------------+---------+ session_id is the unique ID for this table. Each row represents a reading session where someone read a portion of a book. session_rating is on a scale of 1-5. Write a solution to find books that have polarized opinions - books that receive both very high ratings and very low ratings from different readers. A book has polarized opinions if it has at least one rating ≥ 4 and at least one rating ≤ 2 Only consider books that have at least 5 reading sessions Calculate the rating spread as (highest_rating - lowest_rating) Calculate the polarization score as the number of extreme ratings (ratings ≤ 2 or ≥ 4) divided by total sessions Only include books where polarization score ≥ 0.6 (at least 60% extreme ratings) Return the result table ordered by polarization score in descending order, then by title in descending order. The result format is in the following example.

EasyProblem #3996
LeetCode

Find Books with Polarized Opinions

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