Add solution day 15
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21
day_15/example_1.txt
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21
day_15/example_1.txt
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##########
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#..O..O.O#
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#......O.#
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#.OO..O.O#
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#..O@..O.#
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#O#..O...#
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#O..O..O.#
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#.OO.O.OO#
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#....O...#
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##########
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<vv>^<v^>v>^vv^v>v<>v^v<v<^vv<<<^><<><>>v<vvv<>^v^>^<<<><<v<<<v^vv^v>^
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vvv<<^>^v^^><<>>><>^<<><^vv^^<>vvv<>><^^v>^>vv<>v<<<<v<^v>^<^^>>>^<v<v
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><>vv>v^v^<>><>>>><^^>vv>v<^^^>>v^v^<^^>v^^>v^<^v>v<>>v^v^<v>v^^<^^vv<
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<<v<^>>^^^^>>>v^<>vvv^><v<<<>^^^vv^<vvv>^>v<^^^^v<>^>vvvv><>>v^<<^^^^^
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^><^><>>><>^^<<^^v>>><^<v>^<vv>>v>>>^v><>^v><<<<v>>v<v<v>vvv>^<><<>^><
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^>><>^v<><^vvv<^^<><v<<<<<><^v<<<><<<^^<v<^^^><^>>^<v^><<<^>>^v<v^v<v^
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>^>>^v>vv>^<<^v<>><<><<v<<v><>v<^vv<<<>^^v^>^^>>><<^v>>v^v><^^>>^<>vv^
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<><^^>^^^<><vvvvv^v<v<<>^v<v>v<<^><<><<><<<^^<<<^<<>><<><^^^>^^<>^>v<>
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^^>vv<^v^v<vv>^<><v<^v>^^^>>>^^vvv^>vvv<>>>^<^>>>>>^<<^v>^vvv<>^<><<v>
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v^^>>><<^^<>>^v^<v^vv<>v^<<>^<^v^v><^<<<><<^<v><v<>vv>>v><v^<vv<>v^<<^
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10
day_15/example_2.txt
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10
day_15/example_2.txt
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########
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#..O.O.#
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##@.O..#
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#...O..#
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#.#.O..#
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#...O..#
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#......#
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########
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<^^>>>vv<v>>v<<
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9
day_15/example_3.txt
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9
day_15/example_3.txt
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#######
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#...#.#
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#.....#
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#..OO@#
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#..O..#
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#.....#
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#######
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<vv<<^^<<^^
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71
day_15/input.txt
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71
day_15/input.txt
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##################################################
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#OO#..O#......#...O.O..##..O.....O...O.......#...#
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#...O.O...O.OO.O....O...O.#...O...OOO#O..#.#..O.##
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#..O.O.....O.....O..OOO.#OOO...O....#.#.OO....OO.#
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#.......OO#....OOOOO#...O..#...#..OO#O.....O.#...#
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#......O..O....O....O......O..O....O.O#...#......#
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#...OOO..O..O..#..#.....#O.O..O.....##..#..O.OO#.#
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#..#O.O..OOO..OOO..O.O.OO......OOO.........O..O.O#
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#...O.#...O##O....#O..OO.O..O.O.O....O....#......#
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#.....O.O..OO.O.....O......O.#O...OO.O......O.OO##
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#....O.#O.....O...OO.O.OO......O.O.O..........#O.#
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#...O..O.#.O..##.O.OO.O.O.O.....OO.....O.O...O.O.#
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#.........O#.O.O...O.#..O...........O#..#.#OO#...#
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#O.#..O.#.O....O....O.O..#.O..O.OOO.O..##..O.....#
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#..O..OO....#..O..O........#.OO...#...O##..O....O#
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#..O...#.#O#..O.O..O.#.OO.#.##O.O.#O..OO.O.OO..O.#
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#O#..O..#.#O..O.....O.O.O..O..#O....O..OO.......##
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#..OO..................##.#.O...O......O.O..OOOOO#
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#....OO....OOO........#O....#O#.##O.O..OO.O#.....#
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#..#.......O.....#....O..#........OOO.#.O.O..#.###
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#..O........OOOOO......O.O#..O.OO#....#....##....#
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#.OO.#....O..#O......O.O....#...O...#..OOO.....#O#
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#.O.......#O...OOO.OO.O..OOO...OOO.##...O#OOO.O..#
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#O##O..O..#......OO.OOO.#OO....OO....O...OO.#.O..#
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#.#.O.....O..O.O..O..OO.@.O.O......O.....#O##O..O#
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#....OO.........O.....OO...#..#...O..#O#.....OOOO#
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#.O.O#.O.......O#...OOO....O.O.O#.O.O..O.........#
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#O..O.OO...O..OO...O.OOOOO..OOOOO.....#..#..O.O..#
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##.O....OO..##...OO...O....#.O....O#.##OO.O#..O..#
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#.O.O.OO.....O.#.O.#.....OOO.O...O...O#.O.....O..#
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#.....O..##O#.....#.O...O....OOO.#O.....O.O.....O#
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#...O..O#.O..O.##..O...O....O.#....OO...###O....##
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#O...O.O....O.OOO...##.O.#...OO.O.......O.....O#.#
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#..O..O..O.O..##O..#..O...#.....O.......OO...#.O.#
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#O##..O.O.....O.#O#......OOO.......OOO...O.O#..O.#
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#..O.O.##O..O....O.OO.O......O.O.OOO.O#..O.O.O#OO#
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#...#..OO#O.#O.....O.O.O...O.O.....O..OO#....O#.O#
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#O......O.O...#.O....O...#O.#......O...#.O#O...O.#
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#......O.#...OO...O.O...O..........O......O..O.O.#
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#..OO.O.O#..O.O....O.O.O..O..O.#..#.#.#O......OO.#
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#.O#..O....O..OO..O....#....O..OOOO.O.#..O.......#
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#O.........#.O...##..O..#...O...OO...O...O......O#
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#O.O........OOO..O..........O...O#.O..O.O...O....#
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#O.O#..O.O..O.OO..OO...........O...OO......OO.#.O#
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#O##..........#..#.O..#.OO.O...........OO....O..O#
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#....O....#OO..#O#..O.......O..O.O.O..O#.O.O..O..#
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#............O.#.O.O.OO......OO.O.O.O.O..#O.OO.O.#
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#O.OO......O.#..OO...O.....O.#..O..OO..#.#OO..O..#
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#.......##.OO....O.OO.#..O.O.O..OO..........OO..O#
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##################################################
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vvvv<><v<>vv<>^vv>>>^<v>v>^>><>^<^v<>v>>><^><^v<>^v><<<><<>v<vv>v>^v^v<^vvv>>vv^>^vv^^v<^v^>^<^><<v^<<<^>v<^^>^^<><>><<<^^v><>^^^<<vv>^^^^<v<vv^>><v<^^vv^<>vv<v<^v<v<>^>^<<><vv><<^^<v^>vv<^<<v<v>>^>v><>^^v<>>^vvv^^^^<>vv>v^^<>><^>v<^<>^^^^v<>>v>^v^<v>^>>v<vv^^>>>^>><^vv>vv^v<v<v<^>><><v>>^>>>v<>^^>^^<<v<vv<<<v<v^>^<><<<>vvv^<vv><^^<v<<<<^<v<v<>^^<^^<^><>^>^<<<<v<>>>><>^<^^><>>>^^><v>v<<^>><<>^<v<<^<^v^>v^>>>vv^vv^<vv^>vv^>v^>v^v>v<^v><^^vv^<<>^v<<^v><<><<<v^><v^^vvv^>^^>^vvvv>^>v>^^<^v>><>^>^vv<<vvvv<^^^<<vv^v^>>><>>v>>>v>>^<^v^>v^^><vv^^vvv<^v>^>><>v><vv<^^>^<><v^<<v<^><v><^<>>>^v>>v><><>v^^>^^<>^<v<<vv<<><><<^^v^>vvv^>v><^^^^^><vvv<<v>^v^^v<><<^<>v^^^<<vv<<^v>v^<>^^>v^vv<v^<<vv<<<>v^>v<>vvvv>vv^^<>v^><^<^<^^<>^^v<<v^vv>>^>>>v<<>v>>^<^<vv<^>^^^^v>^^^v^>>>>vvv^vv>vv^^>^v>v><<v^<>^>>>>v<^vv<^v^v^^v^><v<v^v>^>>vv<<<^^^<>v<^>>>^>v<^>^^<<v^<v<<<>>^<>><^<v^>vv<>v>>><>v^<^v>^<<^<vvv>v<>v<v<<<>vv^vvv^<^v^>vv>^<<^<>v^<^^^<v>^^v<<v>v^<<vvv^>>^<v<^^>>>^^<<<vv<^^^^<>><v>><<>v^v<^>>>^<<>^^<>>^v<<>
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v^>><v><vv^^^><v^<><^^>>><<^vv<<<^vv>vvv<v><^v<<v>v^v^^<>^^>>>><<vv>v>>v>v<<<<<^v>v^^<>^^>v^<^^v^vv>v>v<<><<><>>>^<>>^v<>vv^^^<>^<<vv>v^<^><v<v<>^v>^^^^^>>>^<vv><^<<>^^^<^<v>^>^>v<<v^^v>^><>v^<^v^>v^v>^^v^>v>v^^v><>>^>^>vv^>^>^^>^<>>^>v^v>>><<^v>vv>v>v^^^>><^^^<>^><v^<<<<^<<^^v<>>^>vv^v<v^^<<<vvvv^<><^>^<^<^^<><vv<v<v<<<<^v^^<<>^^v^^^vv<v<v<<><>v^^^vvv<v>vv^^<^<^<<^><vv>^<>^v>vvv<^<^<^<^v<^v>>><<vvv>v<^v<>>>>^>>^v<vv^^>v^v^v<<>v>><^<^<>v>>^<v<>>^<<>^^<>vv><>>>^^><^vv^>^v^<>^v<<^v>^<><<^><<><>>>vv>>>>^v^<>>v<v><><><v>>^><>v^^>^<<<><vv<^<^>^><v^><<>^<<v^v<^^v><vvv<<v>>^^v>><<^<^<vv><vv^><>^vv^<<<v^>^v<v><vv^vv<^^^>vv><<v><<vv^>v>>^v^<<^vv<<><^>v<<<^v>^<>>^><^>>v>^>>v^v<<^>vv>^v><<v<^v>^^v><^v^^v<<v^<v<^<^>^v^v^<><vvv<>^<^>>>v<v>v^^<>^<^><>^<>>^v>v<<v>^v^>>^>^^^^v^^><>vvv>v<>><^vv<>><^><><v>^<>^<<^^>v<^<>v<v^v<<>v^<<<^>^><^^vv><><vv^vv>v<^<^<>^<<<>v>v^v<v^<^v><^vv^^^>^^<^^^v^<<>>v^^><<v^>vv^>^^v^v^<^^<^><vvv<<vvv^<><>vv<v^<<v<^v<<v>^^^<<vv^^v>>v><<^<>>vv>^v>v>>>vvv><^<<^v><vv^^<>>v<>><v>^
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v<v<>>^>vv>vvv>^>v^<^<v<^^>v<^^>v>^<>>>^^<><><^^>><>^<>^>v<^v^<>v^v>^v>>^<^^^^v>><><^^v<<v<^v><<v^<^v^^^^<<<<><<>^^>v^>v<^v<<v^v<<^^v^>>>>^v^>v^<^vv><vv<<^v>v>^><^<>^^<v^<<<v<^>><>v<>^>^<>><^>^<^v^<><v<^>>^^<vv^vv^>><^v>v^><v^<<^vv<v^<<>v>^v<vv^>v>vv^^v<>>v<<><^v>^>v<v<<v<vv>^^>v<<^^^><^^<<^vv<^v^>^>v^<><^<v^^^v<<<>><>><v<>^v><<v^>^>^>^v^>vv^^><^^vv^>v^v<<>v^<v^<v^v>><<><>^>v^<^<<>>v<><>>^<^^>^^v>^^<<v<<<^>>><vv>>><<>v^>>^<>v<v^><v><v^<<><v>^v>>^v^^^><vv>>>>^>>^^>^>><>>v^<^>v^v<<v^><^v>>^^<^<^<>^<<^v^v^>vv^v^><^>^<<>>>^<>vv><^vv><<<>v^v>^^<<<^<v^><>v>vv>>>v<<<^^v>vvvv>^^^v><<<^>>v<v<<^<>>>><^v^<v<<>^^>>vv^^<v^vvv^v^>>>v^<<><^>^<<^^<<vvv>v<^^<v>^^<>>><v>><v^^<>v>^v><^vvvv<^v<>>>vv^<<^><<<^<^^vv>^<>v>v^>><<<>><^^^>><><>^>>^^^vvv<^><v<<<>>>>>v><<>>>><v<<<>v>>v>v><>^>^v>^<<v^>^vvvv>v><v<<<<vv<><><><<^^<>^v<^>>>>>v^<^>><^>>>^>v^><v>vv<^^>><^v><^<<^>><>^v<>^vv>^<<^<vv>>>^>^^>^v<v<v^vv>^v^^<<>v>><^>^v>v^v><<<>><^^<<vv<><v>v^^^>>>v^<^<<<><><v>v<v<>>><<v^><>^v^<>^<v^>v<^v^^>vv^^>><<<>v>^vv><^>v
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v>v^^v^^^vv<<<>^v^<<^>v^>vv^>^^<^<^v<>><^^v^<<<><<^<<^<<<<><v^vvv>>^><^>><>^<^><^v<>v^<^^^^<>^^<v<><<^vvv<<>>><<^<v><^^><<^^v^<v>^vv^^>v^><<v^vvv<^<vvv>>vv><<<^^><<^^^<><>v^^^v^>v><^>v>^v>^<vvvvv<^vvvv>>v<v>^^<vvv^v<<<<<^>^<><v<>>>^>>>>>^>>>v>vv^>^>v<>^>>^v>>>>^v>><^><vvv><^>>^vvv><v^>v^^<>^v^<<v<<>v<vv>v^<<^<v^^vv<<<>v^^>^^<^><>^>>v>vv>vv<<>^^^<<v^>^>>>vvv<v^>^vv<^v>^v<^^v><>^^>v>>v^<>>^vv><>v<>v<>>^vv>><^<><>>^<<>>v><<>^vvv<<>>>v>v<v>^<<v^vv^>^v>^v^<v^v<>v<^<^^<<v>v>>^>v>>vv><<><>^><v<><><v>v>^<<<^><>v^v>^><v<<v><<vvv<^^v>>v<>v^>>><>><>^>^>>^<^><>>v>v>v^>^vv><>>vvv<v>v^^^>vvv<v><<<^v<v<<v^<v<<vvv<v<>^^vvv>v>>v>><^v^<^^v>^^<><<^>v<v^v<^^>vv>^<>^>>vv><^><><vv^v<^<<<vv^^<>^>v><vv^><v^^<^<^<^>^><<<^v><v<>v^v>^^<>v^>><>^<^<v<><>vv>vv>vv<^<>v^v>^<^<<<v^>vv<v<^vv<^^vv<^<^>^>^v>^v>>^^v<^<v>>^vvv<^^v<<<^vvv>>^^>><v^<<<v>>^>>v<^<^^^>>>v<vv<v^vv^^^<^vvv><^^vv<<vv^<<v><^<vv^v>vvvv^<<<v^<<^^v^v>v<>>>>^^v^>vv<vv<^^><>>v>^^v^<>^v^^^v<<<v^v^><<^<<>^>^>^<^^v^v><^vv><^>^>v>>>>^>^v^<v>vvv<>^^v<^><^v<vv
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<^>>vvv<>^<<><v^>>><v<vvvv<v><<>v><>><v>>^>v>^vv>v^v^^v>>^<>vv>v^<>v^<v<v<^^v^>^<vv^^^^^<><vv^v^>vvv<v<><>>>^>^>>^>^^>^<^^^<>vvv>>vv^v^>^>>v^^^v<^v^v>^<<><>v>><>><<>^><<v>v<>>^>>^<<v<>v^v>^v<^v^<^><v^<<^<^^vv><>v<^vvv^^^vv^<v><>>vv<^<<<<^<<v<^<^>v^>v>><v^v><>^v<v<vv<^^^^>vv>>v>v^><<<v>^v>v<><><^>><>v>^^>v^<<<^v>^<<<^^><>v>>v^^v>><<v<<vvv<v<v^vv<^^v<^<v<><><^>>v>v^<^<<^^<vv^^><>>>v<<v^^>^>><><v><^<<^>>vvv>v>^v^<vv>>^^^>>>^vv^vv>>^><><>^v>><v<^v>^<^<^^<^<^vv<^^><<>>>^<<<>^<><><>v>>^><v^<<<vv^>>><<><>>v<v^vv>>^<^>v><><>^v<<>^<>^><v><>^^>v^<<v<^>><><<vvvv^^<>>^^>><>vv^<>^^<v>vvv^^v>>^^>v<>^^><>v^vv^v<vv<^>v^^v^>>>^^v><><<^<<>^^^^<>>^^>v>><^^>^<vv<>><<v^<<v>^>><><^v^>^vv^^><vv>v><<v^vv>v<>^^>>v>^v^^>v^^>v^><^<vv<<^^^<>vv<v>v>v>>><vv>v<>^<>vvv><<>>v>^^^^>>vv><v>v<>^<^^^>>vv>>^<>><<<^^<>^^><^>v><><v>^>v<^>v><^v>v>vv^vv^>>^><^<v<v><>^>><^^^^<>vvvv>><v^v^^v>>v^<<<^^^>vv<<^^><v>>v^>^>vvv>^v^^^<<v<^v<^^>^><v>>v^v<^^^v^><^<v><>>^^>>^<v>^>>^<^v^^<^><^vv<>v^v^>v>>^<v><<>vvv>v>v>v^>^<^^<<v^v>^^>v>vv^
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^<^^^v>>v<^<>>v^>^^^<>>^vv^>^>^vv<>^vv>^><>^^<^^>v<<^<<>><<^<^>v><^>v^<><<<><<vv<^<^vv>>^>v<<^>>>>v<v<>>>>^<<^><v<>>v^^^>^<><v<<^^<v^^v>^^v^><^>^v<>v>^<>v<vvv^v>>v<>^v^<>v>v<vv<^v^>>^v^><<<^<^<>^>vv^>>vv>^^^<^>>>v^^^v><v^v<^^<<v^^<v<>^>>v^<^>><<^><><><><v<>>><><<>v<<^<v<<>^vv>v<v<v^<^>><><><vv^>^<<^>><v<v<><v>vv^v>^^v<v<vv^v<>><<<^>^>>>v<<vv>v><vv^vv^^^>v^^^>><<>v^>>^v><<v<>^><v>^^v<^>v<v^<>>^<v<<<<>>v>^v<vvvvv<>^>>vv^<>v><<>^v<^>vv^>>^^>><>^vv>vvv^<<<vvv<^<vv<^<<<^<v><v^>^>^^v^>v>^v<v>^<<>^>^<^v>^>^>>v>><^<^>>>^<^^^>^v^v<vv>><>>>v>v<v<<>v^<v^<^v>>>v^^^>v^^>><>>^v<v>v^^^v^^^>^v^^<^>vvv<^<v<>>v>v>^<<><^><>><<v^<<v^>v^>v<^>v^>>v^v<<^v^v^^>v<vv^^^v<^^>v^><<>^<<<>vvvvv^v<^^v^v^v<v>^^>v<^^<<^<v^<<<>>><<v>vv^^>^^>>v<>>>^><<>>^vv<^<^^<vv<<^>v>^^>>^>>^^>^>^v^<v<<^>>v<^<^v>>v>^v>>>^>^^>^<><<v^<^^>><<<<<v<<>>>^>vv^>^^^^<v<<>>^>>^v>^^v^<<><<><<<><<^^^v><<vv>v><>vv>vvvvv<v>^<^>^^v>><v<>v^^><v>>>v^v^v<v<<>v<^<>^<vvvv^><^<><^v><<^v<<^<v<><^><v>>><^<<><v>^v^>^v<<^<<^^vv^>><v><>vv>><<><>>><v>^v<^v><<<
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v>v><v<<v^^vvv<><<><>>^><<><<>vv^vv<><v<<>^v^<>><^v>>>^^vv>v^v<v<<^<^<>><<><>^><^v<^^>><v>><v>^v<^^>>><<v>><<vv>><<>^<>v<<<v^^<>>^v^>^<<v<^<<>^^^<^<>>^><<<^vv<vv>>^^>^v>vv^>^>v<<^v<v<v^v^><v>>>><^v>v>^v<v<<v>v<^>v<vv^v<><^<^<<v><^>^>^^^^v<<v>^<v^^^><^>>><^<v^>><<^<>^<>^v<v<v<v>^>>vvv^v^^v>vv><v^>^^<v>v^><>v<^vv^^v^<vv><vv<<>^<v><>v^v<vv><>><<><^v>^><^vv^^v^v><>><>>^<v><>>^><<<>>^<<v^><^<<>>^v<<^<<v><<<v^^^>^<>^>>^>^^^<<^v><<>v^<>v>^vv<v^^>>^<^<^^>><vv^v>^>><<<v<<^<<<><^<^^v><<v><v>v<<v<<^<^^v<>^^<v^<<^v<>v>^<<^>>>><>^><v>v><^^<<^^<<><^<<^>^^^^v><v<<^v^v^<vv>^<^<>>vv>^><><>v^^v<><>>^^^^>>vv^v<<>^>^v^^^v><vv<v^<><^^>>>^<<<^>v><>vv<^^^v^v>^^v^><<vvv>^vv<v^>^><>><v^vvvv^^v^<^^v>vvv><^<v<>v<<^v>v^<v>>>^^v^>v^<>^^><>v<^>v>^v><^<^>v^<^>><v^>v<^<>v<>>><v^>^>>>v^^><>>^<<^<^^^>v>>v>^v<>>^<<<<<^<^<<^^v^^>>><v^<^vvvv<^><v<v^^v^v>^v>^<<^^>><v<v^^>>^^<>v<<<>v<<<<v^<<^<^v><>>>v<^<^vv^>vv<v>v^^>^vvvv^v<>v<<v>^<^>>>^v<v<>^v^<<vvvvv><<>><^v>^>vv^<v<vv<^>^>>v<><><>vv^<>vv^><<<<<<<>>^v<<v><^^<>>v^v^<<v^^^
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|
||||
>>v^^<>>><<vv>v>>>v<v<>^vv>^^v^^<v>>^v>>^vv<v^<^<^v>^^^v^>>>>v><vvv>^>>^<v^<^^^<^v<<^^><^<^^><<^^>v<<v^^v<<>>><>^v>vv<>>v^><>^<vv<><^<<>><<v^<<>v<v><^><^^<^v<^v^<vv>^<v<>^v>v<>v>^v<^v>v^<vv<><v>v<vv^<v^^^<v<>v<><>^>v^<<>>vv>v^>^<^^<vv><<<<<<v^vv<<<>^^v^<^^v^vvv<vv>^v<vv^v<v<><<v^^>^v<>>^<<v>v>^><^>v<<>^<>>>vvv>><^^^>v<<v^^^>><^>^v^<^v><<<v<^>>^>v<>>><>v<<<^>^<^^<>^^>^^<<vv^<<vv>^^<^<><vv^>^v<<<<>v^><>>>>><^^v^^^<vvvv<^>vvv^>v>>v<<^v<<<^vv>><<<>vvv<>><>^^>vv^<<^v>v^<^><vv>^^>>v^v<<>><^v>>vv<^>vv^v<v^>v<^<vv>>>>v<><<vv^^>v>v<>vv<^<<<<<^>v<<<>vv^^^^^<v><<><<^v><>v><^<<v<>>><<vv><^>>><<^^^>><^^vvv<^^>v^v<v^<>v<v^vv^vv^<vv^<<<^<^vv>^v^v>vv^^<^<v^v^>^^<>v>^><^^<v^<^<vv><>vv>>v^v>>>>^v^v<<>>vvvv<^v>v^<^<>^^><<v<><^<>><><v<<><^^^><<>>>v><v<<><<vvv^v^^v>v<^<>^>^v>v>v^^^^^>>v>vvv<^>v<^v>v>v>^<^<^>v<><^v>v>v>>v<<>>^<<<^>v><>>><^><vv>v<<><<vv^>><v<v>^><<vv^>>><>v<vv<>>^<v^<<>v>^<^v<<><v^><^<^v>vv>>><vv<v><v>v>^^>v>v><vv<>^^><<^v<v^>v><<<<^^><^^<>vv^vv^^<<^<v<^vv<<^vv^^^<^<v>^^^vv><><^vvv<><>^v<v^<
|
||||
^<<v<^><v>><^<<<^<^>v>^v^<^<^<^vv>v^>>^<>>^^<<v>^><v^v<v^^^>>>^<^><^^^v<^^<v>>^>v>v<>v<<<><^vvv^<v><v>v<>>v<><^^<v><><<v<<<vv<<v<^v<>><>^vv><v>>v^<^<^v^<^><<^<<>vvv>><>>vv<v^v>><^v<<v^<^>vvv^^v^>^<v^v>><>^>>^^v^<^v^<v^vv^vv^>v><<>v>^<v^^v^<><v^^^vv^v^^vvvv^v<>vv<^<v<><^^^>>vv<^<<vv^v^<v>v><^v>v^<vv>^v>^<^^v<^^>^vvv>^<vv<<<^<^>v<<^^^^<^^<v><v^<><^>vv>^v><^>>><>vv^<>^>v^>v<><><^<v<><v<<v^>v^^^><<v<><>>^^^><^^v^<<>^>^<vvv^><v^<<vvv^v^><^>v>v<>^<>^^>><v^>>>v^v<v<<v>>^>><<^vv<>^^^>>v><v>v>^^^>^<^^<^>v<v<>^<>^^<^>^^^^vv<><<<>><<v<><v<v<><v^^^>v<><>^<^vvv^>vv^^v<>v<>^<^<>><><^>>>v<<<>vv<>>>^^vvv>^<<<>^v<v<vv>v<v>vv>>^<^><>^>>^vvv<>v><^^v>^^<<>><<vv^>^v<>^v<<<>^^^>>>^>v<<<<^^><<>v^>>><>>^><^^><><^<^<<v><vv<<v><<<<>^>v>^<><>vvvv^><^^^>^>>><<>vv>v>>>^v<>vvv<<^>>>^v>>vv><v<^^vv^>^>^^>^>^vv<^^^>v<v^><^>>>^^>>v<^v>v<<v>vv><v<^v^^>><>^v>>><^vv><<^^v>^>v>vv^^^<<>v<v>^^>^<>>v^v>^>^>v^>^<v>^><^^>^v^<<v<v<^^v<v<<v^>vv>>^^v>>^>^vv<>><>^^>v>v<vvv<>>^<v^v^>v^<><vvv^v<>>v><>>>>v>>v>><><v<v^<v<<<>vvv<^v<>><^
|
||||
105
day_15/solve_1.ts
Normal file
105
day_15/solve_1.ts
Normal file
@ -0,0 +1,105 @@
|
||||
export type Map = string[][];
|
||||
|
||||
export type Move = "^" | "v" | "<" | ">";
|
||||
|
||||
export async function readData(path: string): Promise<{
|
||||
map: Map,
|
||||
moves: Move[]
|
||||
}> {
|
||||
const text = await Deno.readTextFile(path);
|
||||
const [
|
||||
map,
|
||||
moves
|
||||
] = text.split("\n\n");
|
||||
return {
|
||||
map: map.split("\n").map((line) => line.split("")),
|
||||
moves: moves.split("\n").join("").split("").map((move) => move as Move)
|
||||
};
|
||||
}
|
||||
|
||||
export function displayMap(map: Map): string {
|
||||
return map.map((line) => line.join("")).join("\n");
|
||||
}
|
||||
|
||||
export function foreachMap(map: Map, callback: (value: string, x: number, y: number) => void): void {
|
||||
map.forEach((line, y) => {
|
||||
line.forEach((value, x) => {
|
||||
callback(value, x, y);
|
||||
});
|
||||
});
|
||||
}
|
||||
|
||||
export const dirToDelta = {
|
||||
"^": [0, -1],
|
||||
"v": [0, 1],
|
||||
"<": [-1, 0],
|
||||
">": [1, 0]
|
||||
}
|
||||
|
||||
export function stepRobot(map: Map, robot: {x: number, y: number}, move: Move): void {
|
||||
const {x, y} = robot;
|
||||
const [dx, dy] = dirToDelta[move];
|
||||
// Check if the robot can move
|
||||
|
||||
// like socoban, @ is the robot, # is a wall, . is a free space, O is a box
|
||||
// multiple boxes can be pushed at the same time
|
||||
let nextX = x;
|
||||
let nextY = y;
|
||||
while (true) {
|
||||
nextX += dx;
|
||||
nextY += dy;
|
||||
const nextValue = map[nextY][nextX];
|
||||
if (nextValue === "#") {
|
||||
// The robot can't move
|
||||
return;
|
||||
}
|
||||
else if (nextValue === ".") {
|
||||
break;
|
||||
}
|
||||
if (nextValue === "O") {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
let prevX = nextX;
|
||||
let prevY = nextY;
|
||||
// move the boxes
|
||||
while (prevX !== x || prevY !== y) {
|
||||
map[prevY][prevX] = map[prevY - dy][prevX - dx];
|
||||
prevX -= dx;
|
||||
prevY -= dy;
|
||||
}
|
||||
// move the robot
|
||||
map[y][x] = ".";
|
||||
robot.x = x + dx;
|
||||
robot.y = y + dy;
|
||||
}
|
||||
|
||||
if (import.meta.main) {
|
||||
const {map, moves} = await readData("input.txt");
|
||||
let robot = {
|
||||
x: 0,
|
||||
y: 0
|
||||
}
|
||||
foreachMap(map, (value, x, y) => {
|
||||
if (value === "@") {
|
||||
robot = {
|
||||
x,
|
||||
y
|
||||
}
|
||||
}
|
||||
});
|
||||
console.log("Robot", robot);
|
||||
console.log(displayMap(map));
|
||||
moves.forEach((move) => {
|
||||
// console.log("Move", move, ":");
|
||||
stepRobot(map, robot, move);
|
||||
// console.log(displayMap(map));
|
||||
});
|
||||
let sum = 0;
|
||||
foreachMap(map, (value, x, y) => {
|
||||
if (value === "O") {
|
||||
sum += x + y * 100;
|
||||
}
|
||||
});
|
||||
console.log("Sum", sum);
|
||||
}
|
||||
187
day_15/solve_2.ts
Normal file
187
day_15/solve_2.ts
Normal file
@ -0,0 +1,187 @@
|
||||
import { displayMap, foreachMap, Map, Move, readData } from "./solve_1.ts";
|
||||
|
||||
const extendingTranslation = {
|
||||
"#": "##",
|
||||
".": "..",
|
||||
"O": "[]",
|
||||
"@": "@.",
|
||||
};
|
||||
|
||||
function extendMap(map: Map) {
|
||||
const extendedMap = map.map((row) => {
|
||||
return row.map((value) => {
|
||||
const v = extendingTranslation[
|
||||
value as keyof typeof extendingTranslation
|
||||
];
|
||||
if (v) {
|
||||
return v;
|
||||
}
|
||||
throw new Error("Invalid value");
|
||||
}).join("").split("");
|
||||
});
|
||||
return extendedMap;
|
||||
}
|
||||
|
||||
function getHugeBoxPos(map: Map, boxPos: [number, number]): [number, number] {
|
||||
const [x, y] = boxPos;
|
||||
const anyBracket = map[y][x];
|
||||
if (anyBracket === "]") {
|
||||
return [x - 1, y];
|
||||
}
|
||||
if (anyBracket === "[") {
|
||||
return [x, y];
|
||||
}
|
||||
throw new Error("Not a huge box");
|
||||
}
|
||||
|
||||
function IsMovableHugeBox(
|
||||
map: Map,
|
||||
boxPos: [number, number],
|
||||
move: Move,
|
||||
): boolean {
|
||||
const [x, y] = getHugeBoxPos(map, boxPos);
|
||||
if (move === "^" || move === "v") {
|
||||
const dy = move === "^" ? -1 : 1;
|
||||
if (map[y + dy][x] === "#" || map[y + dy][x + 1] === "#") {
|
||||
return false;
|
||||
}
|
||||
if (map[y + dy][x] === "." && map[y + dy][x + 1] === ".") {
|
||||
return true;
|
||||
}
|
||||
|
||||
if (map[y + dy][x] === "]") {
|
||||
const success = IsMovableHugeBox(map, [x, y + dy], move);
|
||||
if (!success) {
|
||||
return false;
|
||||
}
|
||||
} else if (map[y + dy][x] === "[") {
|
||||
const success = IsMovableHugeBox(map, [x, y + dy], move);
|
||||
if (!success) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
if (map[y + dy][x + 1] === "[") {
|
||||
const success = IsMovableHugeBox(map, [x + 1, y + dy], move);
|
||||
if (!success) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
return true;
|
||||
} else {
|
||||
const dx = move === "<" ? -1 : 2;
|
||||
const [nx, ny] = [x + dx, y];
|
||||
if (map[ny][nx] === "#") {
|
||||
return false;
|
||||
}
|
||||
if (map[ny][nx] === ".") {
|
||||
return true;
|
||||
}
|
||||
return IsMovableHugeBox(map, [nx, ny], move);
|
||||
}
|
||||
}
|
||||
|
||||
function pushHugeBox(map: Map, boxPos: [number, number], move: Move) {
|
||||
const [x, y] = getHugeBoxPos(map, boxPos);
|
||||
if (move === "^" || move === "v") {
|
||||
const dy = move === "^" ? -1 : 1;
|
||||
if (map[y + dy][x] === "]") {
|
||||
pushHugeBox(map, [x, y + dy], move);
|
||||
} else if (map[y + dy][x] === "[") {
|
||||
pushHugeBox(map, [x, y + dy], move);
|
||||
}
|
||||
if (map[y + dy][x + 1] === "[") {
|
||||
pushHugeBox(map, [x + 1, y + dy], move);
|
||||
}
|
||||
if (map[y + dy][x] === "." && map[y + dy][x + 1] === ".") {
|
||||
map[y][x] = ".";
|
||||
map[y][x + 1] = ".";
|
||||
map[y + dy][x] = "[";
|
||||
map[y + dy][x + 1] = "]";
|
||||
return;
|
||||
} else {
|
||||
throw new Error("can't push the box");
|
||||
}
|
||||
} else {
|
||||
if (map[y][x - 1] === "]" && move === "<") {
|
||||
pushHugeBox(map, [x - 1, y], move);
|
||||
}
|
||||
if (map[y][x + 2] === "[" && move === ">") {
|
||||
pushHugeBox(map, [x + 2, y], move);
|
||||
}
|
||||
const dx = move === "<" ? -1 : 1;
|
||||
const nx = x + dx;
|
||||
if (
|
||||
(move === "<" && map[y][nx] === ".") ||
|
||||
(move === ">" && map[y][nx + 1] === ".")
|
||||
) {
|
||||
map[y][x] = ".";
|
||||
map[y][x + 1] = ".";
|
||||
map[y][nx] = "[";
|
||||
map[y][nx + 1] = "]";
|
||||
return;
|
||||
} else {
|
||||
throw new Error("can't push the box");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function stepRobot(map: Map, robot: { x: number; y: number }, move: Move) {
|
||||
const { x, y } = robot;
|
||||
const dx = move === "<" ? -1 : move === ">" ? 1 : 0;
|
||||
const dy = move === "^" ? -1 : move === "v" ? 1 : 0;
|
||||
const nx = x + dx;
|
||||
const ny = y + dy;
|
||||
if (map[ny][nx] === "#") {
|
||||
return;
|
||||
}
|
||||
if (map[ny][nx] === "[" || map[ny][nx] === "]") {
|
||||
const [hx, hy] = getHugeBoxPos(map, [nx, ny]);
|
||||
if (IsMovableHugeBox(map, [hx, hy], move)) {
|
||||
pushHugeBox(map, [hx, hy], move);
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
}
|
||||
map[y][x] = ".";
|
||||
map[ny][nx] = "@";
|
||||
robot.x = nx;
|
||||
robot.y = ny;
|
||||
}
|
||||
|
||||
if (import.meta.main) {
|
||||
let { map, moves } = await readData("input.txt");
|
||||
console.log(displayMap(map));
|
||||
map = extendMap(map);
|
||||
let robot = {
|
||||
x: 0,
|
||||
y: 0,
|
||||
};
|
||||
foreachMap(map, (value, x, y) => {
|
||||
if (value === "@") {
|
||||
robot = {
|
||||
x,
|
||||
y,
|
||||
};
|
||||
}
|
||||
});
|
||||
console.log("Robot", robot);
|
||||
console.log(displayMap(map));
|
||||
moves.forEach((move) => {
|
||||
// console.log("Move", move, ":");
|
||||
try {
|
||||
stepRobot(map, robot, move);
|
||||
} catch (_e) {
|
||||
console.log("Move", move, ":");
|
||||
console.log(displayMap(map));
|
||||
}
|
||||
// console.log(displayMap(map));
|
||||
});
|
||||
let sum = 0;
|
||||
foreachMap(map, (value, x, y) => {
|
||||
if (value === "[") {
|
||||
sum += x + y * 100;
|
||||
}
|
||||
});
|
||||
console.log(displayMap(map));
|
||||
console.log("Sum", sum);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user