Count the Digit X40706
Write a function count_digit(d, n) that receives a single digit d (non-negative integer less than 10) and a positive integer n and returns the number of occurrences of digit d in n.
Observation
All integers are assumed written in the usual base 10.
Sample session
>>> count_digit(2, 222122) 5 >>> count_digit(0, 2020) 2
Information
- Author
- Jordi Delgado \& José Luis Balcázar
- Language
- English
- Official solutions
- Python
- User solutions
- Python