Extensions of ’sun’

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

Problem information

Author: ProAl

Generation: 2026-01-25T19:19:55.114Z

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