diff --git a/.aocrunner.json b/.aocrunner.json index 1b653e8..928994f 100644 --- a/.aocrunner.json +++ b/.aocrunner.json @@ -313,16 +313,16 @@ }, { "part1": { - "solved": false, - "result": null, + "solved": true, + "result": "610196", "attempts": [], - "time": null + "time": 17.77 }, "part2": { - "solved": false, - "result": null, + "solved": true, + "result": "1282401587270826", "attempts": [], - "time": null + "time": 535.33 } }, { diff --git a/README.md b/README.md index f062370..0ab6d6f 100644 --- a/README.md +++ b/README.md @@ -32,7 +32,7 @@ ![Day](https://badgen.net/badge/19/%E2%98%86%E2%98%86/gray) ![Day](https://badgen.net/badge/20/%E2%98%86%E2%98%86/gray) [![Day](https://badgen.net/badge/21/%E2%98%85%E2%98%85/green)](src/day21) -![Day](https://badgen.net/badge/22/%E2%98%86%E2%98%86/gray) +[![Day](https://badgen.net/badge/22/%E2%98%85%E2%98%85/green)](src/day22) ![Day](https://badgen.net/badge/23/%E2%98%86%E2%98%86/gray) ![Day](https://badgen.net/badge/24/%E2%98%86%E2%98%86/gray) ![Day](https://badgen.net/badge/25/%E2%98%86%E2%98%86/gray) @@ -216,9 +216,9 @@ Both parts: 147.48000000000002ms ``` Day 22 -Time part 1: - -Time part 2: - -Both parts: - +Time part 1: 502.28ms +Time part 2: 552.54ms +Both parts: 1054.82ms ``` ``` @@ -243,8 +243,8 @@ Both parts: - ``` ``` -Total stars: 38/50 -Total time: 2784.6299999999997ms +Total stars: 40/50 +Total time: 3839.45ms ``` diff --git a/src/day22/README.md b/src/day22/README.md new file mode 100644 index 0000000..67a9d5e --- /dev/null +++ b/src/day22/README.md @@ -0,0 +1,9 @@ +# 🎄 Advent of Code 2021 - day 22 🎄 + +## Info + +Task description: [link](https://adventofcode.com/2021/day/22) + +## Notes + +... \ No newline at end of file diff --git a/src/day22/index.js b/src/day22/index.js new file mode 100644 index 0000000..b3dbe1b --- /dev/null +++ b/src/day22/index.js @@ -0,0 +1,145 @@ +import run from "aocrunner" + +const parseInput = (rawInput) => rawInput.trim().split`\n`.map(l => { + const [on, coords] = l.split` ` + const numbers = coords.match(/-?\d+/g).map(x=>+x) + const ranges = [] + for (let i = 0; i < numbers.length; i+=2) + ranges.push([numbers[i], numbers[i+1]]) + return { + on: on === "on", + ranges + } +}) + +function volume(c) { + return c.reduce((acc, [min, max]) => acc *= max + 1 - min, 1) +} + +function intersect2d(a, b) { + const newMin = Math.max(a[0], b[0]), newMax = Math.min(a[1], b[1]) + return newMin > newMax ? null : [newMin, newMax] +} + +function overwrittenVolume(a, cuboids) { + return cuboids.map((b, i) => { + const intersection = a.map((aRange, j) => intersect2d(aRange, b.ranges[j])) + if (intersection.includes(null)) return 0 // no overlapping volume + return volume(intersection) - overwrittenVolume(intersection, cuboids.slice(1 + i)) + }).reduce((acc, cur) => acc + cur, 0) +} + +function countOn(cuboids) { + let total = 0 + for (let i = 0; i < cuboids.length; i++) if (cuboids[i].on) + total += volume(cuboids[i].ranges) - overwrittenVolume(cuboids[i].ranges, cuboids.slice(i+1)) + return total +} + +const part1 = (rawInput) => { + const input = parseInput(rawInput) + return countOn(input.slice(0,20)) +} + +const part2 = (rawInput) => { + const input = parseInput(rawInput) + return countOn(input) +} + +run({ + part1: { + tests: [ + { input: +`on x=-20..26,y=-36..17,z=-47..7 +on x=-20..33,y=-21..23,z=-26..28 +on x=-22..28,y=-29..23,z=-38..16 +on x=-46..7,y=-6..46,z=-50..-1 +on x=-49..1,y=-3..46,z=-24..28 +on x=2..47,y=-22..22,z=-23..27 +on x=-27..23,y=-28..26,z=-21..29 +on x=-39..5,y=-6..47,z=-3..44 +on x=-30..21,y=-8..43,z=-13..34 +on x=-22..26,y=-27..20,z=-29..19 +off x=-48..-32,y=26..41,z=-47..-37 +on x=-12..35,y=6..50,z=-50..-2 +off x=-48..-32,y=-32..-16,z=-15..-5 +on x=-18..26,y=-33..15,z=-7..46 +off x=-40..-22,y=-38..-28,z=23..41 +on x=-16..35,y=-41..10,z=-47..6 +off x=-32..-23,y=11..30,z=-14..3 +on x=-49..-5,y=-3..45,z=-29..18 +off x=18..30,y=-20..-8,z=-3..13 +on x=-41..9,y=-7..43,z=-33..15 +on x=-54112..-39298,y=-85059..-49293,z=-27449..7877 +on x=967..23432,y=45373..81175,z=27513..53682`, expected: 590784 }, + ], + solution: part1, + }, + part2: { + tests: [ + { input: +`on x=-5..47,y=-31..22,z=-19..33 +on x=-44..5,y=-27..21,z=-14..35 +on x=-49..-1,y=-11..42,z=-10..38 +on x=-20..34,y=-40..6,z=-44..1 +off x=26..39,y=40..50,z=-2..11 +on x=-41..5,y=-41..6,z=-36..8 +off x=-43..-33,y=-45..-28,z=7..25 +on x=-33..15,y=-32..19,z=-34..11 +off x=35..47,y=-46..-34,z=-11..5 +on x=-14..36,y=-6..44,z=-16..29 +on x=-57795..-6158,y=29564..72030,z=20435..90618 +on x=36731..105352,y=-21140..28532,z=16094..90401 +on x=30999..107136,y=-53464..15513,z=8553..71215 +on x=13528..83982,y=-99403..-27377,z=-24141..23996 +on x=-72682..-12347,y=18159..111354,z=7391..80950 +on x=-1060..80757,y=-65301..-20884,z=-103788..-16709 +on x=-83015..-9461,y=-72160..-8347,z=-81239..-26856 +on x=-52752..22273,y=-49450..9096,z=54442..119054 +on x=-29982..40483,y=-108474..-28371,z=-24328..38471 +on x=-4958..62750,y=40422..118853,z=-7672..65583 +on x=55694..108686,y=-43367..46958,z=-26781..48729 +on x=-98497..-18186,y=-63569..3412,z=1232..88485 +on x=-726..56291,y=-62629..13224,z=18033..85226 +on x=-110886..-34664,y=-81338..-8658,z=8914..63723 +on x=-55829..24974,y=-16897..54165,z=-121762..-28058 +on x=-65152..-11147,y=22489..91432,z=-58782..1780 +on x=-120100..-32970,y=-46592..27473,z=-11695..61039 +on x=-18631..37533,y=-124565..-50804,z=-35667..28308 +on x=-57817..18248,y=49321..117703,z=5745..55881 +on x=14781..98692,y=-1341..70827,z=15753..70151 +on x=-34419..55919,y=-19626..40991,z=39015..114138 +on x=-60785..11593,y=-56135..2999,z=-95368..-26915 +on x=-32178..58085,y=17647..101866,z=-91405..-8878 +on x=-53655..12091,y=50097..105568,z=-75335..-4862 +on x=-111166..-40997,y=-71714..2688,z=5609..50954 +on x=-16602..70118,y=-98693..-44401,z=5197..76897 +on x=16383..101554,y=4615..83635,z=-44907..18747 +off x=-95822..-15171,y=-19987..48940,z=10804..104439 +on x=-89813..-14614,y=16069..88491,z=-3297..45228 +on x=41075..99376,y=-20427..49978,z=-52012..13762 +on x=-21330..50085,y=-17944..62733,z=-112280..-30197 +on x=-16478..35915,y=36008..118594,z=-7885..47086 +off x=-98156..-27851,y=-49952..43171,z=-99005..-8456 +off x=2032..69770,y=-71013..4824,z=7471..94418 +on x=43670..120875,y=-42068..12382,z=-24787..38892 +off x=37514..111226,y=-45862..25743,z=-16714..54663 +off x=25699..97951,y=-30668..59918,z=-15349..69697 +off x=-44271..17935,y=-9516..60759,z=49131..112598 +on x=-61695..-5813,y=40978..94975,z=8655..80240 +off x=-101086..-9439,y=-7088..67543,z=33935..83858 +off x=18020..114017,y=-48931..32606,z=21474..89843 +off x=-77139..10506,y=-89994..-18797,z=-80..59318 +off x=8476..79288,y=-75520..11602,z=-96624..-24783 +on x=-47488..-1262,y=24338..100707,z=16292..72967 +off x=-84341..13987,y=2429..92914,z=-90671..-1318 +off x=-37810..49457,y=-71013..-7894,z=-105357..-13188 +off x=-27365..46395,y=31009..98017,z=15428..76570 +off x=-70369..-16548,y=22648..78696,z=-1892..86821 +on x=-53470..21291,y=-120233..-33476,z=-44150..38147 +off x=-93533..-4276,y=-16170..68771,z=-104985..-24507`, expected: 2758514936282235 }, + ], + solution: part2, + }, + trimTestInputs: true, +})