Extensions of 'sun' X70546
You have to program the function below.
- Write a function is_sun_extension(s) that given an string s formed by lowercase letters, returns a boolean value pointing out whether we can cross out zero or more letters in s in such a way that the non ruled out letters are, from left to right, exactly ’s’, ’u’ and ’n’
Scoring
The function counts 100 points.
Sample session
>>> is_sun_extension('sun') True >>> is_sun_extension('assumption') True >>> is_sun_extension('assume') False >>> is_sun_extension('russian') False >>> is_sun_extension('scouting') True >>> is_sun_extension('innocuous') False
Information
- Author
- ProAl
- Language
- English
- Official solutions
- Python
- User solutions
- Python