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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):

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)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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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,
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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