
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Write a recursive function named count_non_digits (word) which takes a string as a parameter and returns the number of non-digits in the parameter string. The function should return 0 if the
parameter string contains only digits.
Note: you may not use loops of any kind. You must use recursion to solve this problem. You can assume that the parameter string is not empty.
For example:
Test
Result
print(count_non_digits ('123'))
print(count_non_digits ('2rPTy5'))
print(count_non_digits ('hello world')) 11
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