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Day 21 part 2 working.

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This commit is contained in:
Bill Thiede 2020-12-21 22:04:22 -08:00
parent 9ef8a73b15
commit 97d32e2588
1 changed files with 3 additions and 3 deletions
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6
2020/src/day21.rs
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@ -166,12 +166,12 @@ fn allergen_ingredients(foods: &[Food], non_allergens: &HashSet<String>) -> Vec<
// allergen/ingredient combo. Then remove that ingredient from all the other entries, and // allergen/ingredient combo. Then remove that ingredient from all the other entries, and
// repeat until nothing is left. // repeat until nothing is left.
dbg!(&allergen_only); dbg!(&allergen_only);
let mut answer = Vec::new(); let mut answer = HashMap::new();
let mut limit = 0; let mut limit = 0;
loop { loop {
dbg!(&allergen_only); dbg!(&allergen_only);
if allergen_only.is_empty() { if allergen_only.is_empty() {
return answer; return answer.into_iter().collect();
}; };
let mut rm = ("".to_string(), "".to_string()); let mut rm = ("".to_string(), "".to_string());
allergen_only.iter().for_each(|(a, i_counts)| { allergen_only.iter().for_each(|(a, i_counts)| {
@ -183,7 +183,7 @@ fn allergen_ingredients(foods: &[Food], non_allergens: &HashSet<String>) -> Vec<
.map(|(i, _c)| i) .map(|(i, _c)| i)
.nth(0) .nth(0)
.unwrap(); .unwrap();
answer.push((a.to_string(), i.to_string())); answer.insert(a.to_string(), i.to_string());
rm = (a.to_string(), i.to_string()); rm = (a.to_string(), i.to_string());
} }
}); });