
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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![**Task Overview:**
Print the two-dimensional list `mult_table` by row and column. On each line, each character is separated by a space. Hint: Use nested loops.
**Sample Output with Input `'1 2 3,2 4 6,3 6 9'`:**
```
1 | 2 | 3
2 | 4 | 6
3 | 6 | 9
```
**Code Explanation:**
```python
1 user_input = input()
2 lines = user_input.split(',')
3
4 # This line uses a construct called a list comprehension, introduced elsewhere,
5 # to convert the input string into a two-dimensional list.
6 # Ex: '1 2, 2 4' is converted to [ [1, 2], [2, 4] ]
7
8 mult_table = [[int(num) for num in line.split()] for line in lines]
```
- **Line 1:** Retrieves user input.
- **Line 2:** Splits the input string by commas, creating a list of strings (each representing a row).
- **Line 8:** Converts each row string into a list of integers using list comprehension, producing a two-dimensional list `mult_table`.](https://content.bartleby.com/qna-images/question/9978ffa8-8e6a-4550-8363-e044b6a6e895/bd30f720-7695-48f4-903a-675fe6808d79/tn0dtj75_thumbnail.png)
Transcribed Image Text:**Task Overview:**
Print the two-dimensional list `mult_table` by row and column. On each line, each character is separated by a space. Hint: Use nested loops.
**Sample Output with Input `'1 2 3,2 4 6,3 6 9'`:**
```
1 | 2 | 3
2 | 4 | 6
3 | 6 | 9
```
**Code Explanation:**
```python
1 user_input = input()
2 lines = user_input.split(',')
3
4 # This line uses a construct called a list comprehension, introduced elsewhere,
5 # to convert the input string into a two-dimensional list.
6 # Ex: '1 2, 2 4' is converted to [ [1, 2], [2, 4] ]
7
8 mult_table = [[int(num) for num in line.split()] for line in lines]
```
- **Line 1:** Retrieves user input.
- **Line 2:** Splits the input string by commas, creating a list of strings (each representing a row).
- **Line 8:** Converts each row string into a list of integers using list comprehension, producing a two-dimensional list `mult_table`.
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