Python Using recursion only! No loops or global var! return the largest number not print! Using such len(), isdigit() def getMaxDigit(phrase):
Python Using recursion only! No loops or global var! return the largest number not print! Using such len(), isdigit() def getMaxDigit(phrase):
Computer Networking: A Top-Down Approach (7th Edition)
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ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
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Python
Using recursion only!
No loops or global var!
return the largest number not print!
Using such len(), isdigit()
def getMaxDigit(phrase):
![### Understanding the `getMaxDigit` Function in Python
The following code snippet demonstrates the usage of a Python function named `getMaxDigit`. This function seems to identify the maximum digit present within a given string. Let's walk through the examples:
```python
>>> s = getMaxDigit('')
>>> s
''
```
**Explanation:**
An empty string is passed to `getMaxDigit`. The function returns an empty string since there are no digits in the input.
```python
>>> s = getMaxDigit('Testing, testing, 1, 2, 3!')
>>> s
'3'
>>>
>>> type(s)
<class 'str'>
```
**Explanation:**
The string "Testing, testing, 1, 2, 3!" is passed to `getMaxDigit`. The function scans the string and identifies '3' as the highest digit. The result is a string containing '3'. Also, the type of `s` is confirmed to be `<class 'str'>`.
```python
>>> s = getMaxDigit("10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blast off!!")
>>> s
'9'
```
**Explanation:**
The string "10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blast off!!" is input to `getMaxDigit`. Among the digits present, '9' is the highest, so the function returns '9'.
```python
>>> s = getMaxDigit("8, 7, 6, wait, 8 again!")
>>> s
'8'
```
**Explanation:**
The function processes the string "8, 7, 6, wait, 8 again!" and identifies '8' as the maximum digit, returning '8'.
```python
>>> s = getMaxDigit('This has no digits')
>>> s
''
```
**Explanation:**
For the string "This has no digits", the function returns an empty string as there are no numeric digits present in the input.
---
### Summary
- The `getMaxDigit` function is designed to identify and return the highest numeric character in a given string.
- If no digits are found, the function returns an empty string.
- The examples shown demonstrate various inputs, including strings with multiple digits,](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F67061b77-5467-4182-94fd-55ec16076bb1%2F93ddd787-8557-4aa1-bfc5-f3878d80dbe0%2Fpw1zfxi_processed.png&w=3840&q=75)
Transcribed Image Text:### Understanding the `getMaxDigit` Function in Python
The following code snippet demonstrates the usage of a Python function named `getMaxDigit`. This function seems to identify the maximum digit present within a given string. Let's walk through the examples:
```python
>>> s = getMaxDigit('')
>>> s
''
```
**Explanation:**
An empty string is passed to `getMaxDigit`. The function returns an empty string since there are no digits in the input.
```python
>>> s = getMaxDigit('Testing, testing, 1, 2, 3!')
>>> s
'3'
>>>
>>> type(s)
<class 'str'>
```
**Explanation:**
The string "Testing, testing, 1, 2, 3!" is passed to `getMaxDigit`. The function scans the string and identifies '3' as the highest digit. The result is a string containing '3'. Also, the type of `s` is confirmed to be `<class 'str'>`.
```python
>>> s = getMaxDigit("10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blast off!!")
>>> s
'9'
```
**Explanation:**
The string "10, 9, 8, 7, 6, 5, 4, 3, 2, 1, blast off!!" is input to `getMaxDigit`. Among the digits present, '9' is the highest, so the function returns '9'.
```python
>>> s = getMaxDigit("8, 7, 6, wait, 8 again!")
>>> s
'8'
```
**Explanation:**
The function processes the string "8, 7, 6, wait, 8 again!" and identifies '8' as the maximum digit, returning '8'.
```python
>>> s = getMaxDigit('This has no digits')
>>> s
''
```
**Explanation:**
For the string "This has no digits", the function returns an empty string as there are no numeric digits present in the input.
---
### Summary
- The `getMaxDigit` function is designed to identify and return the highest numeric character in a given string.
- If no digits are found, the function returns an empty string.
- The examples shown demonstrate various inputs, including strings with multiple digits,
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