Casino

In order to play table games at the casino you need some tokens. Red tokens cost $7$ euros and yellow tokens cost $4$ . Write a function @buy_tokens(n)@ that given a number $n$ of euros such that $n \ge 20$ , it returns the equivalence in tokens. When several equivalences are possible the function returns the one minimizing the total number of tokens.

Sample session

Problem information

Author: Jorge Castro

Generation: 2026-01-25T17:40:08.581Z