untracked 2019 stuff
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE BangPatterns #-}
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{-# LANGUAGE ParallelListComp #-}
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import Data.Ratio
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import Data.List as L
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import qualified Data.Vector as V
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import Data.Ord
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import Data.Maybe
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type Asteroid_old = (Int,Int)
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data Asteroid = Asteroid Int Int deriving Show
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instance Eq Asteroid where
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Asteroid a b == Asteroid c d = reduce a b == reduce c d
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where reduce x y
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| y==0&&x==0 = (0,0)
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| x==0 = (0,signum y)
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| y==0 = (signum x,0)
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| otherwise = (signum x * (abs $numerator z), signum y * (abs $denominator z))
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where z = x%y
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instance Ord Asteroid where
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Asteroid a b `compare` Asteroid c d = phi a b `compare`phi c d
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where phi x y
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| x>=0 = acos (fromIntegral (-y)/sqrt(fromIntegral x^2+fromIntegral y^2))
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| otherwise = 2*pi + acos (fromIntegral (x)/sqrt(fromIntegral x^2+fromIntegral y^2))
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(+|) :: Asteroid -> Asteroid -> Asteroid
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(+|) (Asteroid a b) (Asteroid c d) = Asteroid (a+c) (b+d)
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(-|) :: Asteroid -> Asteroid -> Asteroid
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(-|) (Asteroid a b) (Asteroid c d) = Asteroid (a-c) (b-d)
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neg :: Asteroid -> Asteroid
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neg (Asteroid a b) = Asteroid (-a) (-b)
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dist :: Asteroid -> Int
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dist (Asteroid x y) = abs x + abs y
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main = do
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content <- lines <$> readFile "inputtest"
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print $ parse content
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let aMax = fst $ maxInSight $ parse content
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print aMax
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let newlist = listCycle $ sort $ sortOn (dist.fromJust) $ snd $ transformCoordinates (parse content) aMax
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print $ newlist !! 199
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let newnewlist = snd $ transformCoordinates newlist (neg aMax)
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print $ newnewlist !! 0
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print $ newnewlist !! 1
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print $ newnewlist !! 2
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print $ newnewlist !! 50
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print $ newnewlist !! 100
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print $ length newnewlist
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listCycle :: [Maybe Asteroid] -> [Maybe Asteroid]
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listCycle [] = []
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listCycle xs = nub xs ++ listCycle (xs \\ nub xs)
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-- alternative rotation function that also gets different results
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cycle2 :: Maybe Asteroid -> [Maybe Asteroid] -> [Maybe Asteroid]
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cycle2 _ [] = []
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cycle2 last (x:xs)
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| x==last&& length (filter (/=x) xs) > 0 = cycle2 x (xs++[x])
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| otherwise = x:cycle2 x xs
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parse :: [String] -> [Maybe Asteroid]
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parse = concat . V.toList . V.map V.toList . toAsteroids . V.map V.fromList . V.fromList
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where toAsteroids = V.imap g
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g x = V.imap (f x)
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f i j a = case a of '.' -> Nothing; _ -> Just $ Asteroid j i
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--inSight :: [Maybe Asteroid] -> Int
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transformCoordinates :: [Maybe Asteroid] -> Asteroid -> (Asteroid,[Maybe Asteroid])
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transformCoordinates xs a = (a,[Just $ x -| a |Just x<-xs])
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maxInSight :: [Maybe Asteroid] -> (Asteroid, Int)
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maxInSight xs = maximumBy (comparing snd) $ map (f . transformCoordinates xs) (catMaybes xs)
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where f (x,y) = (x, pred . length . nub $ y)
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-- old shit be here
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--maxInSight xs = map ((\(x,y)->(x,pred . length . nub . snd $ y)). transformCoordinates xs) (catMaybes xs)
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--maxInSight xs = map ((pred . length . nub . snd) . transformCoordinates xs) (catMaybes xs)
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-- transform2 :: Asteroid -> [Maybe Asteroid] -> [Maybe Asteroid]
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-- transform2 a xs = L.map (a -|) xs
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-- maxInSight x = L.maximum $ inSight x `fmap` asts x
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-- sightTransform xs = map inSight xs
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-- inSight xs a = (pred . L.length) $ L.nub [case a of
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-- Just (xa,ya) -> Just (reduceTuple (x-xa,y-ya))
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-- Nothing -> Nothing |Just (x,y)<-asts xs]
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--
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asts :: [String] -> [Maybe Asteroid_old]
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asts xxs = L.nub [if (xxs!!y)!!(x)=='.' then Nothing else Just (x,y)
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| y<-[0..(L.length $ L.head xxs) -1], x<-[0..L.length xxs -1] ]
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@ -0,0 +1,20 @@
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.#..##.###...#######
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##.############..##.
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.#.######.########.#
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.###.#######.####.#.
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#####.##.#.##.###.##
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..#####..#.#########
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####################
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#.####....###.#.#.##
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##.#################
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#####.##.###..####..
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..######..##.#######
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####.##.####...##..#
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.#####..#.######.###
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##...#.##########...
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#.##########.#######
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.####.#.###.###.#.##
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....##.##.###..#####
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.#.#.###########.###
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#.#.#.#####.####.###
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###.##.####.##.#..##
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@ -0,0 +1,4 @@
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<x=-1, y=0, z=2>
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<x=2, y=-10, z=-7>
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<x=4, y=-8, z=8>
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<x=3, y=5, z=-1>
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@ -0,0 +1,17 @@
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171 ORE => 8 CNZTR
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7 ZLQW, 3 BMBT, 9 XCVML, 26 XMNCP, 1 WPTQ, 2 MZWV, 1 RJRHP => 4 PLWSL
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114 ORE => 4 BHXH
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14 VRPVC => 6 BMBT
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6 BHXH, 18 KTJDG, 12 WPTQ, 7 PLWSL, 31 FHTLT, 37 ZDVW => 1 FUEL
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6 WPTQ, 2 BMBT, 8 ZLQW, 18 KTJDG, 1 XMNCP, 6 MZWV, 1 RJRHP => 6 FHTLT
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15 XDBXC, 2 LTCX, 1 VRPVC => 6 ZLQW
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13 WPTQ, 10 LTCX, 3 RJRHP, 14 XMNCP, 2 MZWV, 1 ZLQW => 1 ZDVW
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5 BMBT => 4 WPTQ
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189 ORE => 9 KTJDG
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1 MZWV, 17 XDBXC, 3 XCVML => 2 XMNCP
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12 VRPVC, 27 CNZTR => 2 XDBXC
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15 KTJDG, 12 BHXH => 5 XCVML
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3 BHXH, 2 VRPVC => 7 MZWV
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121 ORE => 7 VRPVC
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7 XCVML => 6 RJRHP
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5 BHXH, 4 VRPVC => 5 LTCX
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@ -0,0 +1,2 @@
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34659 too low
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2944566 too high
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@ -140,6 +140,7 @@ fn remove(map: &mut HashMap<Position2D, char>, k: Key) {
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}
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}
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/*
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fn distance_to_door(map: &HashMap<Position2D, char>, k: &Key) -> usize {
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let (distances, _, _) = traverse(map, find(map, k.0).unwrap());
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let door_pos = find(map, k.0.to_uppercase().next().unwrap());
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@ -154,6 +155,7 @@ fn distance_to_locked_door(map: &HashMap<Position2D, char>, k: &Key) -> usize {
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.min()
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.unwrap_or(&0)
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}
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*/
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fn next_key(
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map: &mut HashMap<Position2D, char>,
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@ -198,6 +200,9 @@ fn next_key(
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.collect();
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//.min_by_key(|k| )
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let nearest = dependencies.iter()
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.filter(|(_, (_, d))| d.is_empty())
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.min_by_key(|(k, _)| distances.get(&find(&map, k.0).unwrap()));
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let dead_end_keys = find_keys_at_dead_ends(&dependencies);
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let mut next: Vec<_> = dead_end_keys
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.iter()
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//.chain(useful_keys)
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.collect();
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next.sort_by_key(|(k, n)| *n);//*3 + distance_to_door(map, k));
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nearest.map(|(k, _)| next.insert(0, (k, *distances.get(&find(map, k.0).unwrap()).expect("No distance to nearest?"))));
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useful_keys.sort_by_key(|(k, n)| *n);
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useful_keys.reverse();
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useful_keys.pop().map(|k| next.insert(0, k));
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useful_keys.pop().map(|k| next.push(k));
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useful_keys.pop().map(|k| next.push(k));
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//useful_keys.pop().map(|k| next.push(k));
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useful_keys.pop().map(|k| next.push(k));
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useful_keys.pop().map(|k| next.push(k));
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let len = next.len();
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next.par_iter()
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.take((len.min(5) - 1).max(1))
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.take((len.min(4) - 1).max(1))
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.map(|(k, _)| {
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let mut map2 = map.clone();
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let next_pos = find(&map2, k.0).expect("Could not find key #3");
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})
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.collect();
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let pos = find(&map, '@').unwrap();
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let steps = 0;
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let (_, dependencies, _) = traverse(&map, pos.to_owned());
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//let steps = 0;
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//let (_, dependencies, _) = traverse(&map, pos.to_owned());
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let p1 = next_key(&mut map.clone(), &pos, 0);
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println!("Part 1: {}", p1);
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println!("Part 1: {}", BEST.lock().unwrap());
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@ -0,0 +1,9 @@
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[package]
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name = "day20"
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version = "0.1.0"
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authors = ["kageru <kageru@encode.moe>"]
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edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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@ -0,0 +1,121 @@
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I U O M N O S
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X T X C D N A
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#########################################.#####.#######.###.###########.#####.#######.#######################################
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#.....#.......#.....#.....#.....#...#.#...#...#...#.....#.#...........#.....#.....#.............#.#...#...#...#.......#.....#
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#####.#######.#####.#####.#.###.###.#.#.###.#.###.#.#.###.###.###.#####.#.#######.#####.#.#######.###.#.###.###.#######.#####
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#.#.#...#...#.....#.........#...........#.#.#...#.#.#.....#...#.......#.#...#.#.....#.#.#...............#.........#.........#
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#.#.###.###.###.#####.#######.#####.#.###.#.###.#.#.#########.#.#########.###.#.#####.###.###.#####.#.#####.###.#########.###
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#.....#.........#.....#...#.#.....#.#.....#.#...#.#.#...#...#.#.....#...#.#.#.........#.....#.....#.#.........#.#...#...#...#
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#####.#####.#.#.###.#####.#.#.#####.#.#.#.#.###.#.#.###.###.#####.#####.#.#.#####.#######.###.#.#.#######.###.#####.###.#.###
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#...#.......#.#.......#.......#.#.#.#.#.#.#...#.#.#.......#.#.#.....#.........#.....#.....#.#.#.#.......#.#.........#.......#
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#.###############.#####.#####.#.#.#######.###.#.#.###.#.###.#.#.#.###.###.#####.#######.#.#.###.#.###.#.#.###.#####.#####.#.#
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#...#.#.#...#.......#.......#...#.....#...#...#.#.#...#.....#...#...#.#...#.......#...#.#.....#.#...#.#.#.#.#.#.....#.#.#.#.#
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#.###.#.#.#######.#.#.#.#####.###.###.#.#.#.###.#.#.###.#.###.###########.#####.#####.###.#.#.#.#.#########.###.#####.#.#.###
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#.#.......#...#...#.#.#...#...#.#.#.....#.#...#...#.#...#.#.......#.#.#.#.#.........#.....#.#.#.#...........#.#...#.#.#.#...#
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#.###.###.#.#####.###.#.###.###.###.#####.###.#.#.#.#############.#.#.#.#.#######.#.###.#.#####.#.#.#####.#.#.#####.#.#.#.###
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#.#...#...#.#.#.#...#.#...#.#.....#.#.....#...#.#.#...#.#.#...........#.....#.....#.#...#.....#.#.#.....#.#.....#...#.#.#.#.#
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#.#######.#.#.#.#.#############.#####.###.#.#######.#.#.#.#.###.#.#####.#########.#####.#################.#######.#.#.#.#.#.#
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#.....#.......#.#.#...#...#...#...#.#.#...#.....#...#.#.....#.#.#.#.......#.#.#...#.......#.#...#.#.....#.....#.#.#.....#...#
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###.#########.#.###.#####.#.###.###.###.#.#.#######.###.###.#.#######.###.#.#.#.#.#.#####.#.#.###.#.#.#####.###.#######.#.###
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#.#.....#.#...#...#...#.#.#...#...#...#.#.#.....#...#...#.......#...#.#.......#.#.#.#.........#.....#...#.#.#.#...#.........#
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#.###.###.###.###.#.###.#.###.#.#####.###.#.#.###.#.#########.###.#.#####.#######.###.###.#####.#.#.#####.###.###.#######.###
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#.........#.#...#.#.#...........#.#.......#.#...#.#.#...#.........#.#.....#.#.......#.#.#.#.#...#.#.#.....#.#...#.#.....#...#
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###.#.#####.#.###.#.#####.#####.#.#######.#.###.###.#.#####.#.#.#########.#.#####.#####.#.#.#.#.#######.###.#.###.#.#.###.###
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#.#.#.#...#.........#.#.#.#.#.#...#.#.....#.#.#.#.......#.#.#.#.#...........#.#.......#.....#.#.#.#...#...#...#.....#...#.#.#
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#.#.#####.#.###.###.#.#.###.#.#.#.#.#####.#.#.#.###.#.###.#####.#####.#######.###.#######.###.#.#.#.###.#####.###.#.###.#.#.#
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#...#.#.#.#.#.#.#.....#.........#.#...#...#...#.#...#.#...#.......#...#...#...........#.#.....#.#...#.#.#...#...#.#.#.......#
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###.#.#.#.###.#####.#.#####.#.#.###.###.#.#.#.#####.#####.#.#.#.#.#.###.#.#.###.#.#.###.#.#.#####.###.#.###.#.#.#########.###
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#...#.#...#...#.#.#.#.......#.#.........#.#.#.#...........#.#.#.#.#.#...#.#...#.#.#.#.#.#.#.#.............#.#.#.#.....#.#.#.#
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###.#.#.###.###.#.###.#.#.#####.###.#####.#.#######.#############.#.#.###.###.#######.#.#.###.###.#.#######.#.#######.#.#.#.#
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#.#.....#.#.#.#.#.....#.#.#.#...#.......#.#...#...........#...#...#...#...#...#...#...........#...#.#.#...#.....#...#.#.....#
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#.#####.#.#.#.#.#########.#.#.#.#.#.###.###.#######.#######.###.###.###.#.###.#.#####.###.#.#########.#.###.#######.#.###.###
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#...#.....#.#.#.#.#.#...#.#...#.#.#.#.#...#.......#.........#.....#.#...#.#.....#.#.#...#.#.#.#...#.....#.....#.#...#.#.....#
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#.#######.#.#.#.#.#.#.###.#.#.#.#.###.###.#.#.#####.#.###.#####.#######.###.#.###.#.#.#.#.#.#.###.###.#####.#.#.#.###.#.#####
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#...#.#...#...........#...#.#.#.#.#.......#.#...#...#.#...#.......#.......#.#...#.....#.#.#...#.......#...#.#.......#.....#.#
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#.#.#.###.###.###.#############.#########.###.#########.#####.#######.#####.#######.#################.#.#######.#####.###.#.#
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#.#.....#.#.#.#.#.....#.#.....#.# C S P R W B A #...#.#...#...#.#.....#...#...#.#
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###.#.###.#.#.#.#######.###.###.# S A P D A E D #.###.###.#.###.#.###########.#.#
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#...#.#...........#...#.....#...# #.#.......#.........#.#.#.....#.#
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###.#####.#####.###.###.###.##### #.#####.#.#.#.#.#.###.#.###.#.#.#
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#...#.#...#.........#.....#.#...# #.....#.#...#.#.#.#.#.......#...#
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###.#.###.#.###########.#####.### #.#.#.#.###.###.#.#.#######.#.#.#
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EY........#.#...#...#.#.......#.#.# #.#.#.#...#.#.#.#...#.......#.#.#
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#.###.#.#.#.#.#.#.#.###.#####.#.# #.#.#####.###.###.#####.#.###.###
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#.#...#...#.#...#................RB VN..#.......#.....#.......#.#......CS
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#############.#########.#.####### #############.#.###.#######.###.#
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#...#.#...#.....#.#.#...#.#.....# #.........#...#.#...#.#...#...#.#
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#.###.###.###.###.#.###.#####.#.# ###.###.###.#.#######.#.#########
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BE....#...#...#.#.......#.#.#...#.# ON..#.#...#...#.#...#...#.#.#...#.#
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#.#####.###.#######.#####.###.#.# #.#.#.#####.#.#.#####.#.#.#.###.#
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#.#.#.......#.........#.....#.#.# #.#.#.#...#.#.#.#.........#.#.#..MR
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#.#.#.#####.#####.#.#.###.###.#.# #.#.#.#####.#.#.###.#.#####.#.#.#
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#.....#...#.......#.#.........#..QG WP....#.......#.......#............VN
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#######.###.###.###.############# ###.###########.#.#######.#######
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ZM........#.....#...#.#...#.....#.# #.#...#...#...#.#.#.....#.#.....#
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#.#.#########.#.#####.#######.#.# #.#####.#.###.#######.#.###.#.###
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#.#.......#.#.#.....#.#.....#....ND UE........#...........#.#.#...#...#
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###.#######.#########.###.#.#.### #.###.#.#.#####.###.#.#.###.#.###
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#...#...#...#...#.......#.#.....# #.#.#.#.#...#...#...#.#.....#....GN
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#.#####.###.#.###.###.#####.#.### #.#.###########.#.###.#####.#.#.#
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#...................#.......#...# #.#.......#.#.#.#.......#...#.#.#
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#####.#####.###.#.#####.######### ###.#.#.###.#.###.###############
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#...#.....#.#...#.#...#.#.#.....# UT....#.#.#.#.#...#.#.#.......#....WA
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#.#.###############.###.#.#.##### ###.#####.#.#.###.#.#.###.#.#.#.#
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WP..#...#.....#.#.#.....#.#.......# #.....#.....#.#.....#.#...#...#.#
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#.#.#.###.###.#.###.#.###.#.##### #.#.#.###.###.#########.###.#.###
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#.#.#.....#.....#.#.#.....#.....# #.#.#.#.......#.#.#.....#...#.#.#
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#######.#.#.#.###.#.#.#.#.####### #.#####.###.#.#.#.#####.###.#.#.#
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#...#.#.#...#.......#.#.#........OX #.........#.#...........#...#.#.#
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#.###.###########.###.###.#.###.# #.#######.#####.###########.###.#
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#.......#.....#...#...#...#.#...# #.#.....#.#.#.#.#.......#...#....PP
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#.###.#.###.#.################### ###.###.###.#.###.#.###.#####.###
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NO..#...#.#...#.#.#.....#...#.....# ZR..#.#.#...#.....#.#.#.....#.....#
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###.#####.###.#.#.#####.###.###.# #.#.#.#.#####.#####.###.#####.#.#
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#...#...#...#.....#.#.........#..FK #.....#.....#.#...#.#...#...#.#.#
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#.###.#.###.#####.#.###.#.#.#.#.# #.###.###.###.###.#.###.#.#.###.#
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ZZ......#.......#.#.......#.#.#.#.# #.#...#.............#.....#.....#
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#.###.###.#.###.###.############# ###.#####.###.#################.#
|
||||
#.#...#.#.#.......#.#.#.........# #.....#.....#.#...............#.#
|
||||
#######.#####.#.#.###.#.###.###.# #########.#####.###.#######.#####
|
||||
RX..#.#.#.....#.#.#.#.#.....#.#....GN #.#...#...#.....#.....#.#........UE
|
||||
#.#.#.#.#.#########.###.#.###.#.# #.#.#####.###.#.###.###.###.###.#
|
||||
#.....#.#.....#.#.....#.#...#.#.# ZM....#...#.#...#.#.#.......#...#.#
|
||||
#.#.#.#.#.#####.###.#####.#.#.#.# #.#.###.###.#.###.#.#.#####.###.#
|
||||
#.#.#...#.................#.#.#.# #.#.........#...#...#...#.....#.#
|
||||
#.###.#.#####.###.#.#####.#####.# M P I R E N M #.###.#.#.###.#######.#####.###.#
|
||||
#.#...#.....#...#.#...#.#...#.#.# C G X X Y O R #...#.#.#.#...#.....#.....#...#.#
|
||||
#####.###.###.#.#.#####.#.###.#######.#######.###########.#####.#####.#####.###########.#########.#######.#.#####.#.#.###.###
|
||||
#.#.#...#.#...#.#.#.............#.....#.#.#...#...#.........#...#.......#.......#.#...#.#.......#.#.............#.#.#.#.#...#
|
||||
#.#.#.#.#.###.###.###.###.###.###.#.#.#.#.###.#.#.###.#########.#######.#######.#.###.#.###.#.#####.###.#.###.#########.#####
|
||||
#...#.#.#...#...#...#...#...#.#...#.#...#.#.....#.#...#.....#...#.#.#.#.....#.#.#.#.#.#.....#.#...#...#.#.#.............#...#
|
||||
###.#.#######.#.#####.###.#.#####.#.###.#.#######.#.###.#.###.#.#.#.#.###.###.#.#.#.#.#.#######.#######.#####.###.#######.###
|
||||
#.......#.....#.#.......#.#...#...#.#.....#...#.#.#.....#...#.#.#...........#.#...#...#...........#.#.#...#.....#...........#
|
||||
#.#.#.#.#.#.#.#.#.#.#.#.###.#.###.#.#.###.###.#.#.#######.#####.###.###.#.###.#.###.#.#.#.###.#.#.#.#.#.###.#.###.###.###.###
|
||||
#.#.#.#.#.#.#.#.#.#.#.#.#...#...#.#.#.#.#.#.#.........#...#.#...#.....#.#...#...#...#...#...#.#.#.#.#...#...#.#.....#.#.#...#
|
||||
###.#.#####.#######.#.###.###.###.#####.#.#.#.#####.#####.#.###.#####.#.#.#####.#.#.###.#######.#.#.#.#######.#######.#.#####
|
||||
#...#...#...#.#.#...#...#.#.#...#.#.......#...#.#...#.....#.....#.....#.#...#...#.#.#.........#.#.#...#.........#...........#
|
||||
###.#####.###.#.#.#.#######.#.#########.#.#.###.#.#####.#.#.#.#####.#####.#####.#.#########.#########.#####.#.###.#####.###.#
|
||||
#.....#.....#.....#.......#.....#.......#.#.....#...#...#.#.#.....#.#.#.#.#...#.#.......#...........#.#.#.#.#...#...#.....#.#
|
||||
###.#.###.#######.###.###.###.###.###.###.#.#.###.###.###.#######.#.#.#.#####.#.#.#.#########.###.#.#.#.#.#####.#.#.#.#.#.#.#
|
||||
#...#...#...#.#.....#.#.....#.#...#.#.#...#.#...#.#.#.#.#.#.#...#.#.....#.#...#.#.#.........#.#.#.#.#.........#.#.#.#.#.#.#.#
|
||||
#.###.#.###.#.#.#.#.#####.#########.#####.#.#######.###.#.#.###.#.#.###.#.###.#.#####.#######.#.#######.#.#########.###.#.#.#
|
||||
#.#...#.#...#...#.#.#.......#...#.#.......#.#.......#...#...#...#.#...#.#.#.......#...#.#.#.#...#.....#.#.#.#...#.....#.#.#.#
|
||||
#.#.#.#.#####.#.#.#####.#####.###.#.#####.#.###.#######.#.#####.#.#####.#.###.#######.#.#.#.###.#.#####.###.#.#####.#.#######
|
||||
#.#.#.#...#...#.#.#.......#.#.#.#.#.#.#.#.#.#...#.#.#...#...#.#.......#.....#...#...........#.#...#.#.....#...#...#.#...#.#.#
|
||||
###.###.#.#.#########.#####.#.#.#.###.#.#.#.###.#.#.###.#.###.#.###.#.###.###.#####.###.#####.#####.#.#.###.#####.###.###.#.#
|
||||
#.....#.#.#.#.........#.......#.#...#.....#.....#.....#...#.......#.#...#.#.......#...#.......#.....#.#...#...#.....#.#.#...#
|
||||
#.#.###.#.#.#.###.#.#######.#.#.#.#####.#.#.###.###.#.#.#####.#.#####.###.###.#########.###.#.###.#####.###.###.#.#####.#.###
|
||||
#.#...#.#.#.#.#.#.#...#.....#.........#.#.#.#.....#.#.#...#.#.#...#.#.#.#.#.......#.......#.#...#...#.#.........#...........#
|
||||
#.#.###.#######.#.#.#####.#########.#####.#######.#.#.#.###.###.#.#.###.#.#####.#######.#########.###.#.###.#.#.###.#.#.###.#
|
||||
#.#.#.......#...#.#.#.#...#...#.....#.#...#.......#.#.......#...#.#.........#...#...............#.#.#.#.#.#.#.#...#.#.#.#.#.#
|
||||
#.#####.#######.#####.#######.#.###.#.###.#.#######.###########.#.#.###########.#####.###.###.###.#.#.###.###.#.#####.###.###
|
||||
#.#.....#...............#.......#.....#...#.......#...#...#...#.#.#...#.......#.....#...#...#...#.......#...#.#.....#.#...#.#
|
||||
#.#.###.#.#.#.#.#######.#.#.#.#######.###.#######.###.###.#.#.###.###.#####.#.#.#.###.###########.###.###.#####.#.#####.###.#
|
||||
#.#.#...#.#.#.#.#.#.......#.#...#.........#.........#...#.#.#...#.#.#...#.#.#...#.#.......#.........#.........#.#.#...#...#.#
|
||||
#.#.###.###.#####.#.#####.#.#####.###.#.###.#.#######.###.###.#.#.#.###.#.#.###.#####.#.###.#####.#.#.###.#####.#####.#.###.#
|
||||
#.#.#.#.#...#...#...#.....#.#.....#...#.#.#.#...#...#...#.#...#...#.......#...#.....#.#.......#.#.#.#.#.....#.#.............#
|
||||
#####.#.#.#.#.#.###.#.###.#####.#####.###.#.###.#.#.#.###.#.#######.###.#####.#######.#.#.#.###.#.#.###.#####.###.#.#.###.#.#
|
||||
#.......#.#.#.#.....#.#.....#...#.......#.....#.#.#.......#.......#...#.#...........#.#.#.#.....#.#.#...........#.#.#...#.#.#
|
||||
#####################################.#######.#########.#.#######.#.###########.#######.#####################################
|
||||
Z A R A F Q R P
|
||||
R D B A K G D G
|
||||
|
|
@ -0,0 +1,3 @@
|
|||
fn main() {
|
||||
println!("Hello, world!");
|
||||
}
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
[package]
|
||||
name = "day24"
|
||||
version = "0.1.0"
|
||||
authors = ["kageru <kageru@encode.moe>"]
|
||||
edition = "2018"
|
||||
|
||||
[dependencies]
|
||||
grid = { path = "../grid" }
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
.#..#
|
||||
.#.#.
|
||||
#..##
|
||||
.#.##
|
||||
##..#
|
||||
|
|
@ -0,0 +1,80 @@
|
|||
use grid::*;
|
||||
use std::collections::HashMap;
|
||||
use std::fmt;
|
||||
use std::io::{self, BufRead};
|
||||
|
||||
const FIELD_SIZE: usize = 5;
|
||||
|
||||
#[derive(Copy, Debug, Clone, PartialEq, Eq)]
|
||||
enum State {
|
||||
Alive,
|
||||
Dead,
|
||||
}
|
||||
|
||||
impl fmt::Display for State {
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
|
||||
write!(
|
||||
f,
|
||||
"{}",
|
||||
match self {
|
||||
State::Alive => '#',
|
||||
State::Dead => '.',
|
||||
}
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<char> for State {
|
||||
fn from(c: char) -> Self {
|
||||
match c {
|
||||
'.' => Self::Dead,
|
||||
'#' => Self::Alive,
|
||||
_ => unreachable!(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn state_for_live_neighbors(state: &State, n: usize) -> State {
|
||||
match (state, n) {
|
||||
(_, 1) => State::Alive,
|
||||
(State::Dead, 2) => State::Alive,
|
||||
_ => State::Dead,
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let mut fields: HashMap<Position2D, State> = io::stdin()
|
||||
.lock()
|
||||
.lines()
|
||||
.map(|l| l.unwrap())
|
||||
.enumerate()
|
||||
.flat_map(move |(y, l)| {
|
||||
l.chars()
|
||||
.enumerate()
|
||||
.map(move |(x, c)| ((x, y).into(), c.into()))
|
||||
.collect::<Vec<_>>()
|
||||
})
|
||||
.collect();
|
||||
loop {
|
||||
println!("{}", draw_ascii(&fields, State::Dead));
|
||||
fields = (0..FIELD_SIZE)
|
||||
.flat_map(|y| {
|
||||
(0..FIELD_SIZE)
|
||||
.map(|x| {
|
||||
let p = Position2D::from((x, y));
|
||||
let state = state_for_live_neighbors(
|
||||
fields.get(&p).unwrap(),
|
||||
p.moore()
|
||||
.iter()
|
||||
.map(|p| fields.get(&p).unwrap_or(&State::Dead))
|
||||
.filter(|&&s| s == State::Alive)
|
||||
.count(),
|
||||
);
|
||||
(Position2D::from((x, y)), state)
|
||||
})
|
||||
// .map(|alive_neighbors| (Position2D::from((x, y)), *state))
|
||||
.collect::<Vec<_>>()
|
||||
})
|
||||
.collect();
|
||||
}
|
||||
}
|
||||
|
|
@ -73,6 +73,19 @@ impl Position2D {
|
|||
(Direction::Left, *self + Direction::Left),
|
||||
]
|
||||
}
|
||||
|
||||
pub fn moore(&self) -> [Position2D; 8] {
|
||||
[
|
||||
*self + Direction::Up + Direction::Left,
|
||||
*self + Direction::Up,
|
||||
*self + Direction::Up + Direction::Right,
|
||||
*self + Direction::Left,
|
||||
*self + Direction::Right,
|
||||
*self + Direction::Down + Direction::Left,
|
||||
*self + Direction::Down,
|
||||
*self + Direction::Down + Direction::Right,
|
||||
]
|
||||
}
|
||||
}
|
||||
|
||||
impl Direction {
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user