Update readme.md

Author: iamAntimPal

LeetCode SQL 50 Solution/620. Not Boring Movies/readme.md

@@ -0,0 +1,124 @@
+Below is a structured README.md snippet for **LeetCode 620: Not Boring Movies**, including the problem statement, example, solution approaches (SQL and Pandas), file structure, and useful links.
+
+---
+
+# **620. Not Boring Movies**
+
+## **Problem Statement**
+You are given a table `Cinema` that contains information about movies, their descriptions, and ratings.
+
+### **Cinema Table**
+```
++----------------+----------+
+| Column Name    | Type     |
++----------------+----------+
+| id             | int      |
+| movie          | varchar  |
+| description    | varchar  |
+| rating         | float    |
++----------------+----------+
+```
+- `id` is the **primary key**.
+- Each row provides details about a movie:
+  - `id`: The movie's unique identifier.
+  - `movie`: The name of the movie.
+  - `description`: The description or genre of the movie.
+  - `rating`: A float representing the movie's rating (in the range [0, 10] with 2 decimal places).
+
+### **Task:**
+Write a solution to report the movies that have:
+- An **odd-numbered `id`**.
+- A `description` that is **not "boring"**.
+
+Return the result table **ordered by rating in descending order**.
+
+---
+
+## **Example 1:**
+
+### **Input:**
+#### **Cinema Table**
+```
++----+------------+-------------+--------+
+| id | movie      | description | rating |
++----+------------+-------------+--------+
+| 1  | War        | great 3D    | 8.9    |
+| 2  | Science    | fiction     | 8.5    |
+| 3  | irish      | boring      | 6.2    |
+| 4  | Ice song   | Fantacy     | 8.6    |
+| 5  | House card | Interesting | 9.1    |
++----+------------+-------------+--------+
+```
+
+### **Output:**
+```
++----+------------+-------------+--------+
+| id | movie      | description | rating |
++----+------------+-------------+--------+
+| 5  | House card | Interesting | 9.1    |
+| 1  | War        | great 3D    | 8.9    |
++----+------------+-------------+--------+
+```
+
+### **Explanation:**
+- Movies with **odd-numbered IDs**: `1`, `3`, and `5`.
+- Excluding movie with `id = 3` because its description is `"boring"`.
+- Sorting the remaining movies by `rating` in descending order gives the result.
+
+---
+
+## **Solution Approaches**
+
+### **SQL Solution**
+```sql
+SELECT * 
+FROM Cinema 
+WHERE id % 2 = 1 
+  AND description != 'boring'
+ORDER BY rating DESC;
+```
+**Explanation:**
+- The query filters movies where the `id` is odd (`id % 2 = 1`) and the `description` is not `"boring"`.
+- The results are ordered by `rating` in descending order.
+
+---
+
+### **Pandas Solution**
+```python
+import pandas as pd
+
+def not_boring_movies(cinema: pd.DataFrame) -> pd.DataFrame:
+    # Filter movies with odd-numbered id and description not equal to 'boring'
+    result = cinema[(cinema['id'] % 2 == 1) & (cinema['description'] != 'boring')]
+    # Sort the result by rating in descending order
+    return result.sort_values(by='rating', ascending=False)
+
+# Example usage:
+# cinema_df = pd.read_csv('cinema.csv')
+# print(not_boring_movies(cinema_df))
+```
+**Explanation:**
+- The Pandas solution filters the DataFrame to include only rows where the `id` is odd and the `description` is not `"boring"`.
+- It then sorts the filtered results by `rating` in descending order.
+
+---
+
+## **File Structure**
+```
+LeetCode620/
+├── problem_statement.md       # Contains the problem description and constraints.
+├── sql_solution.sql           # Contains the SQL solution.
+├── pandas_solution.py         # Contains the Pandas solution for Python users.
+├── README.md                  # Overview of the problem and available solutions.
+```
+
+---
+
+## **Useful Links**
+- [LeetCode Problem 620](https://leetcode.com/problems/not-boring-movies/)
+- [SQL WHERE Clause Documentation](https://www.w3schools.com/sql/sql_where.asp)
+- [Pandas Documentation](https://pandas.pydata.org/docs/)
+
+---
+
+This structured format provides a clear understanding of the problem and offers both SQL and Pandas solutions. Happy coding! 🚀