advent-of-code/2023
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day(07): use match

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Signed-off-by: Matej Focko <mfocko@redhat.com>
This commit is contained in:
Matej Focko 2023-12-07 10:40:09 +01:00
parent b582bf33d9
commit 1275d5b738
Signed by: mfocko
GPG key ID: 7C47D46246790496
1 changed files with 20 additions and 28 deletions
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48
src/bin/day07.rs
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@ -88,20 +88,14 @@ impl Hand {
let mut freqs = freqs.values().cloned().collect_vec(); let mut freqs = freqs.values().cloned().collect_vec();
freqs.sort_by_key(|&c| Reverse(c)); freqs.sort_by_key(|&c| Reverse(c));
if freqs[0] == 5 { match freqs[..] {
HandType::FiveOfAKind [5, ..] => HandType::FiveOfAKind,
} else if freqs[0] == 4 { [4, ..] => HandType::FourOfAKind,
HandType::FourOfAKind [3, 2, ..] => HandType::FullHouse,
} else if freqs[0] == 3 && freqs[1] == 2 { [3, ..] => HandType::ThreeOfAKind,
HandType::FullHouse [2, 2] => HandType::TwoPair,
} else if freqs[0] == 3 { [2, ..] => HandType::OnePair,
HandType::ThreeOfAKind _ => HandType::HighCard,
} else if freqs[0] == 2 && freqs[1] == 2 {
HandType::TwoPair
} else if freqs[0] == 2 {
HandType::OnePair
} else {
HandType::HighCard
} }
} }
@ -113,20 +107,18 @@ impl Hand {
let mut freqs = freqs.values().cloned().collect_vec(); let mut freqs = freqs.values().cloned().collect_vec();
freqs.sort_by_key(|&c| Reverse(c)); freqs.sort_by_key(|&c| Reverse(c));
if jokers == 5 || freqs[0] + jokers == 5 { if jokers == 5 {
HandType::FiveOfAKind return HandType::FiveOfAKind;
} else if freqs[0] + jokers == 4 { }
HandType::FourOfAKind
} else if freqs[0] + jokers == 3 && freqs[1] == 2 { match freqs[..] {
HandType::FullHouse [n, ..] if n + jokers == 5 => HandType::FiveOfAKind,
} else if freqs[0] + jokers == 3 { [n, ..] if n + jokers == 4 => HandType::FourOfAKind,
HandType::ThreeOfAKind [n, 2, ..] if n + jokers == 3 => HandType::FullHouse,
} else if freqs[0] == 2 && freqs[1] == 2 { [n, ..] if n + jokers == 3 => HandType::ThreeOfAKind,
HandType::TwoPair [2, 2, ..] => HandType::TwoPair,
} else if freqs[0] + jokers == 2 { [n, ..] if n + jokers == 2 => HandType::OnePair,
HandType::OnePair _ => HandType::HighCard,
} else {
HandType::HighCard
} }
} }
} }