diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | day05/day05.java | 158 | ||||
| -rw-r--r-- | day05/input | 139 | ||||
| -rw-r--r-- | day05/test | 33 |
4 files changed, 331 insertions, 0 deletions
@@ -1 +1,2 @@ *.class +*.swp diff --git a/day05/day05.java b/day05/day05.java new file mode 100644 index 0000000..d7d7992 --- /dev/null +++ b/day05/day05.java @@ -0,0 +1,158 @@ +import java.io.IOException; +import java.io.RandomAccessFile; +import java.util.Arrays; +import java.util.ArrayList; +import java.util.regex.Pattern; + +public class day05 { + public static void main(String args[]) throws IOException { + RandomAccessFile input = new RandomAccessFile("input", "r"); + System.out.println("Day 05 Part 1: " + part1(input)); + input.seek(0); + System.out.println("Day 05 Part 2: " + part2(input)); + input.close(); + } + + public static String part1(RandomAccessFile input) throws IOException { + Garden garden = parseGarden(input); + + long min_loc = Long.MAX_VALUE; + for (long seed: garden.seeds) { + long loc = garden.location(seed); + if (loc < min_loc) { + min_loc = loc; + } + } + + return Long.toString(min_loc); + } + + public static String part2(RandomAccessFile input) throws IOException { + return "WIP"; + } + + private static Garden parseGarden(RandomAccessFile input) throws IOException { + Garden garden = new Garden(); + + String line; + int state = -1; + while ((line = input.readLine()) != null) { + if (Pattern.matches("\\Aseeds:.*", line)) { + String[] seeds = line.split(": ")[1].split(" "); + for (String seed: seeds) { + garden.seeds.add(Long.parseLong(seed)); + } + } else if (Pattern.matches(".* map:\\z", line)) { + state += 1; + } else if (Pattern.matches("\\d+ \\d+ \\d+", line)) { + String[] linea = line.split(" "); + long dst = Long.parseLong(linea[0]); + long src = Long.parseLong(linea[1]); + long len = Long.parseLong(linea[2]); + switch (state) { + case 0: + garden.almanac.s2s.add(dst, src, len); + break; + case 1: + garden.almanac.s2f.add(dst, src, len); + break; + case 2: + garden.almanac.f2w.add(dst, src, len); + break; + case 3: + garden.almanac.w2l.add(dst, src, len); + break; + case 4: + garden.almanac.l2t.add(dst, src, len); + break; + case 5: + garden.almanac.t2h.add(dst, src, len); + break; + case 6: + garden.almanac.h2l.add(dst, src, len); + break; + } + } + } + + return garden; + } +} + +class Garden { + ArrayList<Long> seeds; + Almanac almanac; + + public Garden() { + this.seeds = new ArrayList<>(); + this.almanac = new Almanac(); + } + + public long location(long seed) { + long at = seed; + for (Map map: this.almanac.maps) { + for (MapEntry ent: map.mapEntries) { + if (ent.contains(at)) { + at = ent.map(at); + break; + } + } + } + return at; + } +} + +class Almanac { + Map s2s, s2f, f2w, w2l, l2t, t2h, h2l; + ArrayList<Map> maps; + + public Almanac() { + this.s2s = new Map(); + this.s2f = new Map(); + this.f2w = new Map(); + this.w2l = new Map(); + this.l2t = new Map(); + this.t2h = new Map(); + this.h2l = new Map(); + + ArrayList<Map> maps = new ArrayList<>(); + maps.add(this.s2s); + maps.add(this.s2f); + maps.add(this.f2w); + maps.add(this.w2l); + maps.add(this.l2t); + maps.add(this.t2h); + maps.add(this.h2l); + this.maps = maps; + } +} + +class Map { + ArrayList<MapEntry> mapEntries; + + public Map() { + mapEntries = new ArrayList<>(); + } + + public void add(long dst, long src, long len) { + mapEntries.add(new MapEntry(dst, src, len)); + } +} + +class MapEntry { + long dst, src, len; + + public MapEntry(long dst, long src, long len) { + this.dst = dst; + this.src = src; + this.len = len; + } + + public boolean contains(long src) { + return src >= this.src && src < (this.src + this.len); + } + + public long map(long src) { + return this.dst + (src - this.src); + } +} diff --git a/day05/input b/day05/input new file mode 100644 index 0000000..2edcbfa --- /dev/null +++ b/day05/input @@ -0,0 +1,139 @@ +seeds: 364807853 408612163 302918330 20208251 1499552892 200291842 3284226943 16030044 2593569946 345762334 3692780593 17215731 1207118682 189983080 2231594291 72205975 3817565407 443061598 2313976854 203929368 + +seed-to-soil map: +2069473506 3732587455 1483883 +3235691256 2348990120 6550341 +3547561069 1392195671 747406227 +3264251584 3734071338 283309485 +391285622 257757572 195552540 +1645243555 3166958320 377191689 +335002083 512210869 56283539 +3242241597 897735089 22009987 +77244511 0 257757572 +989159646 4172023334 122943962 +605476380 3544150009 188437446 +0 568494408 18343754 +2700122696 4050276683 121746651 +2022435244 2139601898 47038262 +2227672101 919745076 95840269 +1112103608 2633818373 533139947 +826809686 2186640160 162349960 +3100147259 762191092 135543997 +18343754 453310112 58900757 +2323512370 1015585345 282396986 +2605909356 1297982331 94213340 +2821869347 2355540461 278277912 +793913826 4017380823 32895860 +2070957389 605476380 156714712 + +soil-to-fertilizer map: +2700214958 2743391193 363795571 +1484584575 1440072796 24660284 +927520818 435059068 191969051 +1588488926 1434420334 5652462 +1423277199 141187887 5443857 +1594141388 1350997453 83422881 +1986188257 3933008893 120750463 +1509244859 146631744 79093544 +3712482038 4220862006 74105290 +3948206286 1986188257 277570873 +291046304 281588807 153470261 +1119489869 918224946 303787330 +1677564269 1321192605 29804848 +2309878676 2336743687 390336282 +3079951473 3306332300 449116691 +444516565 1222012276 99180329 +543696894 1464733080 383823924 +3895169406 3771389935 53036880 +3529068164 4053759356 167102650 +0 627178642 291046304 +3696170814 2727079969 16311224 +3855550220 3824426815 39619186 +2106938720 3107186764 199145536 +1428721056 225725288 55863519 +1707369117 0 64378064 +1771747181 64378064 76809823 +3064010529 3755448991 15940944 +2306084256 2332949267 3794420 +4225777159 2263759130 69190137 +3786587328 3864046001 68962892 +1588338403 627028119 150523 + +fertilizer-to-water map: +2299879115 39069388 7889905 +514481680 504392888 101474410 +3448524168 0 25428313 +13641075 1832356728 472401611 +0 25428313 13641075 +1842445520 108629584 395763304 +486042686 3445513487 28438994 +2307769020 2304758339 1140755148 +2238208824 46959293 61670291 +615956090 605867298 1226489430 + +water-to-light map: +1318826171 2010420436 223477535 +2278894745 2233897971 671603259 +988189854 447584401 27746374 +2132052210 300741866 146842535 +0 1279660741 97125596 +3531244480 3147213622 507810286 +257581844 3816963790 101424269 +1298609589 3918388059 20216582 +3317726838 1072550929 21856732 +3065323607 1254863909 4121973 +97125596 1094407661 160456248 +359006113 1057194484 15356445 +374362558 1636971609 104335413 +4039054766 475330775 9209679 +1038424317 1376786337 260185272 +878530050 3938604641 109659804 +1784016098 3738041092 78922698 +3152462764 0 165264074 +1862938796 1741307022 269113414 +497536930 676201364 380993120 +3069445580 3655023908 83017184 +2950498004 165264074 114825603 +1015936228 1258985882 1835900 +478697971 1260821782 18838959 +1017772128 280089677 20652189 +1542303706 2905501230 241712392 +3339583570 484540454 191660910 + +light-to-temperature map: +2827696039 489007811 183207687 +1480301347 3744628626 306791400 +695239418 130668965 358338846 +1297125534 2232912413 183175813 +3979319170 1917264287 315648126 +3010903726 948848843 968415444 +130668965 2663473525 564570453 +1053578264 4051420026 243547270 +2303677395 672215498 276633345 +1787092747 3228043978 516584648 +2580310740 2416088226 247385299 + +temperature-to-humidity map: +4161466647 3871737509 133500649 +2423686895 2864370860 72123408 +1983529997 0 320533964 +3184295196 2695571092 41928210 +0 822932241 605870242 +3557076981 3267347843 604389666 +3226223406 2936494268 330853575 +2495810303 2737499302 126871558 +1108268519 1428802483 491674128 +605870242 320533964 502398277 +2622681861 2423686895 271884197 +2894566058 4005238158 289729138 +1599942647 1920476611 383587350 + +humidity-to-location map: +2945628300 1864953738 334378942 +3467273713 3579654586 715312710 +975015905 1356290883 508662855 +1483678760 2498980024 1080674562 +3443998409 2199332680 23275304 +3280007242 2222607984 163991167 +4182586423 2386599151 112380873 +2564353322 975015905 381274978 diff --git a/day05/test b/day05/test new file mode 100644 index 0000000..f756727 --- /dev/null +++ b/day05/test @@ -0,0 +1,33 @@ +seeds: 79 14 55 13 + +seed-to-soil map: +50 98 2 +52 50 48 + +soil-to-fertilizer map: +0 15 37 +37 52 2 +39 0 15 + +fertilizer-to-water map: +49 53 8 +0 11 42 +42 0 7 +57 7 4 + +water-to-light map: +88 18 7 +18 25 70 + +light-to-temperature map: +45 77 23 +81 45 19 +68 64 13 + +temperature-to-humidity map: +0 69 1 +1 0 69 + +humidity-to-location map: +60 56 37 +56 93 4 |