use std::collections::HashSet; pub fn generate_valid_letters() -> HashSet<char> { let mut output: HashSet<char> = ('A'..='Z').collect(); output.insert('Ñ'); output } pub fn sort_hashset<T: Ord>(hashset: HashSet<T>) -> Vec<T> { let mut output = hashset.into_iter().collect::<Vec<_>>(); output.sort(); output }