Day 5
This commit is contained in:
parent
a007a5a19d
commit
ea5c6c1e3b
GPG Key ID:
15E168A8B332382C
|
|
@ -24,3 +24,8 @@ I'll probably try to vary languages a bit to get some variety.
|
|||
|
||||
### [Day 4](day4/)
|
||||
**Language**: Golang
|
||||
|
||||
### [Day 5](day5/)
|
||||
**Language**: Kotlin
|
||||
|
||||
**Note**: Here begin the optimisations! (some people got away with brute force, I decided not to even go there).
|
||||
|
|
@ -0,0 +1 @@
|
|||
out/
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
# Default ignored files
|
||||
/shelf/
|
||||
/workspace.xml
|
||||
# Editor-based HTTP Client requests
|
||||
/httpRequests/
|
||||
# Datasource local storage ignored files
|
||||
/dataSources/
|
||||
/dataSources.local.xml
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<module type="JAVA_MODULE" version="4">
|
||||
<component name="NewModuleRootManager" inherit-compiler-output="true">
|
||||
<exclude-output />
|
||||
<content url="file://$MODULE_DIR$">
|
||||
<sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
|
||||
</content>
|
||||
<orderEntry type="inheritedJdk" />
|
||||
<orderEntry type="sourceFolder" forTests="false" />
|
||||
<orderEntry type="library" name="KotlinJavaRuntime" level="project" />
|
||||
</component>
|
||||
</module>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="Kotlin2JvmCompilerArguments">
|
||||
<option name="jvmTarget" value="1.8" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,23 @@
|
|||
<component name="libraryTable">
|
||||
<library name="KotlinJavaRuntime" type="repository">
|
||||
<properties maven-id="org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.9.21" />
|
||||
<CLASSES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.21/kotlin-stdlib-jdk8-1.9.21.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.21/kotlin-stdlib-1.9.21.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.21/kotlin-stdlib-jdk7-1.9.21.jar!/" />
|
||||
</CLASSES>
|
||||
<JAVADOC>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.21/kotlin-stdlib-jdk8-1.9.21-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.21/kotlin-stdlib-1.9.21-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0-javadoc.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.21/kotlin-stdlib-jdk7-1.9.21-javadoc.jar!/" />
|
||||
</JAVADOC>
|
||||
<SOURCES>
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.9.21/kotlin-stdlib-jdk8-1.9.21-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib/1.9.21/kotlin-stdlib-1.9.21-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/annotations/13.0/annotations-13.0-sources.jar!/" />
|
||||
<root url="jar://$MAVEN_REPOSITORY$/org/jetbrains/kotlin/kotlin-stdlib-jdk7/1.9.21/kotlin-stdlib-jdk7-1.9.21-sources.jar!/" />
|
||||
</SOURCES>
|
||||
</library>
|
||||
</component>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectRootManager" version="2" languageLevel="JDK_21" project-jdk-name="openjdk-21" project-jdk-type="JavaSDK">
|
||||
<output url="file://$PROJECT_DIR$/out" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,8 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="ProjectModuleManager">
|
||||
<modules>
|
||||
<module fileurl="file://$PROJECT_DIR$/.idea/day5.iml" filepath="$PROJECT_DIR$/.idea/day5.iml" />
|
||||
</modules>
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<project version="4">
|
||||
<component name="VcsDirectoryMappings">
|
||||
<mapping directory="$PROJECT_DIR$/.." vcs="Git" />
|
||||
</component>
|
||||
</project>
|
||||
|
|
@ -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
|
||||
|
|
@ -0,0 +1,189 @@
|
|||
seeds: 1848591090 462385043 2611025720 154883670 1508373603 11536371 3692308424 16905163 1203540561 280364121 3755585679 337861951 93589727 738327409 3421539474 257441906 3119409201 243224070 50985980 7961058
|
||||
|
||||
seed-to-soil map:
|
||||
3305253869 1699909104 39566623
|
||||
3344820492 1130725752 384459310
|
||||
3244681427 1739475727 60572442
|
||||
951517531 1800048169 868898709
|
||||
1820416240 951517531 179208221
|
||||
1999624461 2668946878 219310925
|
||||
3729279802 1515185062 184724042
|
||||
2218935386 2898481077 1015522767
|
||||
3234458153 2888257803 10223274
|
||||
|
||||
soil-to-fertilizer map:
|
||||
1569885498 220184682 161941102
|
||||
3711640300 872157831 344226893
|
||||
1934701528 0 25420995
|
||||
3394438846 2543943059 181930710
|
||||
2957858493 2070565336 135870012
|
||||
1416178127 25420995 36071868
|
||||
1030022714 2029369539 9317803
|
||||
1039340517 1216384724 133685745
|
||||
695011633 382125784 335011081
|
||||
2317056551 1350070469 640801942
|
||||
1731826600 2887680679 151926123
|
||||
0 3039606802 695011633
|
||||
2030497645 2257384153 286558906
|
||||
1960122523 2038687342 31877994
|
||||
3576369556 2840047597 42331426
|
||||
1536338434 4027621785 33547064
|
||||
1452249995 3964767856 62853929
|
||||
1331718081 787697785 84460046
|
||||
4055867193 2882379023 5301656
|
||||
3093728505 3734618435 230149421
|
||||
1173026262 61492863 158691819
|
||||
1883752723 2206435348 50948805
|
||||
3618700982 2725873769 92939318
|
||||
1515103924 2818813087 21234510
|
||||
1992000517 1990872411 38497128
|
||||
3323877926 717136865 70560920
|
||||
|
||||
fertilizer-to-water map:
|
||||
898769374 211542615 277361469
|
||||
2901739042 2299030230 213178977
|
||||
207924763 1114173904 26774777
|
||||
3752402183 1968349402 71176470
|
||||
1176130843 625299169 68863743
|
||||
3114918019 3783121220 137843736
|
||||
1244994586 488904084 103878858
|
||||
3252761755 2915409726 98951129
|
||||
2779748334 3652754391 121990708
|
||||
3351712884 2593688676 245406043
|
||||
0 1252990064 95883380
|
||||
2007290234 3920964956 325008750
|
||||
3823578653 2039525872 202532901
|
||||
2443486939 2512209207 81479469
|
||||
4231974038 3371954615 62993258
|
||||
3698239076 2242058773 54163107
|
||||
2340675105 3014360855 102811834
|
||||
4219112930 4245973706 12861108
|
||||
4026111554 2839094719 76315007
|
||||
3597118927 3434947873 101120149
|
||||
2332298984 3774745099 8376121
|
||||
95883380 1140948681 112041383
|
||||
4102426561 3536068022 116686369
|
||||
1968349402 2296221880 2808350
|
||||
1971157752 4258834814 36132482
|
||||
866253147 592782942 32516227
|
||||
446242155 694162912 420010992
|
||||
2524966408 3117172689 254781926
|
||||
234699540 0 211542615
|
||||
|
||||
water-to-light map:
|
||||
3564276417 3073533986 256027539
|
||||
540951899 3329561525 136112599
|
||||
3123682450 3465674124 119685876
|
||||
2479417373 4222809437 72157859
|
||||
1957776831 2195006920 74795586
|
||||
3089045940 3585360000 28951457
|
||||
3820985109 2269802506 288781515
|
||||
1285562478 1664965131 530041789
|
||||
234319697 234026754 79806762
|
||||
3243368326 1344057040 320908091
|
||||
3117997397 541633052 5685053
|
||||
2551575232 547318105 349893979
|
||||
3820303956 540951899 681153
|
||||
0 369583040 292943
|
||||
314126459 313833516 55749524
|
||||
4109766624 2888333314 185200672
|
||||
292943 0 234026754
|
||||
677064498 3614311457 608497980
|
||||
2032572417 897212084 446844956
|
||||
2901469211 2700756585 187576729
|
||||
1815604267 2558584021 142172564
|
||||
|
||||
light-to-temperature map:
|
||||
2658328410 4044901271 250066025
|
||||
866264123 157899985 185676775
|
||||
2062023507 343576760 307684950
|
||||
1535723010 981670684 313982539
|
||||
3292868240 2534053678 579746095
|
||||
3905180794 3703329819 341571452
|
||||
2908394435 3318856014 384473805
|
||||
1194970869 1601263273 340752141
|
||||
427693043 1299669198 158564104
|
||||
748173107 651261710 118091016
|
||||
1051940898 1458233302 143029971
|
||||
586257147 0 157899985
|
||||
4246752246 2485838628 48215050
|
||||
1849705549 769352726 212317958
|
||||
0 2368902754 805703
|
||||
744157132 1295653223 4015975
|
||||
805703 1942015414 426887340
|
||||
3872614335 3113799773 32566459
|
||||
2485838628 3146366232 172489782
|
||||
|
||||
temperature-to-humidity map:
|
||||
2731357374 2535823037 72664015
|
||||
2987243945 1266132780 17518070
|
||||
3983567677 3876954134 113067367
|
||||
1669770178 435765631 9597802
|
||||
192217183 2087059527 132586479
|
||||
324803662 1449340061 36910958
|
||||
82239523 1283650850 47718149
|
||||
4251710314 3400860374 43256982
|
||||
788691045 2012848120 74211407
|
||||
139712452 383260900 52504731
|
||||
1679367980 1064470362 18439862
|
||||
3627675589 3649605531 101947626
|
||||
1761484189 1024489895 39980467
|
||||
3964889474 4132263773 7628253
|
||||
469056934 1486251019 222779936
|
||||
3808503415 3992550600 118386133
|
||||
4096635044 4139892026 155075270
|
||||
0 328658745 54602155
|
||||
3929418647 3751553157 35470827
|
||||
3729623215 3787023984 78880200
|
||||
129957672 2003093340 9754780
|
||||
3926889548 3990021501 2529099
|
||||
2130123401 3260061108 28438224
|
||||
1154320063 445363433 515450115
|
||||
2331952939 1331368999 72869773
|
||||
2804021389 1082910224 183222556
|
||||
1140184340 2219646006 14135723
|
||||
3606348549 4110936733 21327040
|
||||
3004762015 1709030955 50302777
|
||||
1801464656 0 328658745
|
||||
691836870 1759333732 96854175
|
||||
447785309 2608487052 21271625
|
||||
3400860374 3444117356 205488175
|
||||
3055064792 2233781729 261071908
|
||||
2185047506 1856187907 146905433
|
||||
1697807842 960813548 63676347
|
||||
361714620 2494853637 40969400
|
||||
2404822712 2933526446 326534662
|
||||
402684020 1404238772 45101289
|
||||
3972517727 3865904184 11049950
|
||||
2158561625 2907040565 26485881
|
||||
862902452 2629758677 277281888
|
||||
54602155 3288499332 27637368
|
||||
|
||||
humidity-to-location map:
|
||||
1368371614 3063096196 39876417
|
||||
2318920763 3734391855 138926764
|
||||
2980019498 3984955289 310012007
|
||||
3732521234 1430493364 562446062
|
||||
213274662 484132485 78936678
|
||||
0 892307918 213274662
|
||||
1023610211 575518293 214768297
|
||||
2807160244 2776517513 21582263
|
||||
2457847527 2833630022 176634966
|
||||
3619027057 2663023336 113494177
|
||||
2926107621 1368371614 53911877
|
||||
1784866635 3524616139 209775716
|
||||
2695523574 3873318619 111636670
|
||||
1250827638 790286590 102021328
|
||||
3290031505 1992939426 224427328
|
||||
954760770 415283044 68849441
|
||||
1408248031 2286404732 376618604
|
||||
292211340 0 415283044
|
||||
1994642351 3102972613 324278412
|
||||
2642692366 3034347120 28749076
|
||||
3514458833 2798099776 35530246
|
||||
1238378508 563069163 12449130
|
||||
2828742507 3427251025 97365114
|
||||
3549989079 2217366754 69037978
|
||||
2671441442 3010264988 24082132
|
||||
707494384 1105582580 247266386
|
||||
2634482493 1422283491 8209873
|
||||
|
|
@ -0,0 +1,100 @@
|
|||
import java.nio.file.Files
|
||||
import java.nio.file.Path
|
||||
import kotlin.math.max
|
||||
import kotlin.math.min
|
||||
|
||||
class Mapping(val to: String, private val lines: List<MapLine>) {
|
||||
fun get(n: Long): Long =
|
||||
lines.firstNotNullOfOrNull { it.get(n) } ?: n
|
||||
|
||||
fun getInterval(interval: Interval): List<Interval> =
|
||||
lines.mapNotNull { it.getInterval(interval) }.let { intervals ->
|
||||
val result = mutableListOf<Interval>()
|
||||
var remaining = listOf(interval)
|
||||
for ((f, t) in intervals) {
|
||||
remaining = remaining.flatMap { it.difference(f) }
|
||||
result.add(t)
|
||||
}
|
||||
result.addAll(remaining)
|
||||
result
|
||||
}
|
||||
}
|
||||
|
||||
class MapLine(line: Triple<Long, Long, Long>) {
|
||||
private val interval = Interval(line.second, line.second + line.third - 1)
|
||||
private val offset = line.first - line.second
|
||||
|
||||
fun get(n: Long): Long? =
|
||||
if (interval.start <= n && n <= interval.end) n + offset
|
||||
else null
|
||||
|
||||
fun getInterval(i: Interval): Pair<Interval, Interval>? =
|
||||
interval.overlap(i)?.let {
|
||||
it to it.applyOffset(offset)
|
||||
}
|
||||
}
|
||||
|
||||
class Interval(val start: Long, val end: Long) {
|
||||
fun overlap(interval: Interval): Interval? {
|
||||
val s = max(interval.start, start)
|
||||
val e = min(interval.end, end)
|
||||
if (s > e) return null
|
||||
return Interval(s, e)
|
||||
}
|
||||
|
||||
fun difference(interval: Interval): List<Interval> {
|
||||
val diffs = mutableListOf<Interval>()
|
||||
if (start < interval.start) {
|
||||
diffs.add(Interval(start, min(interval.start - 1, end)))
|
||||
}
|
||||
if (interval.end < end) {
|
||||
diffs.add(Interval(max(interval.end + 1, start), end))
|
||||
}
|
||||
return diffs
|
||||
}
|
||||
|
||||
fun applyOffset(offset: Long): Interval =
|
||||
Interval(start + offset, end + offset)
|
||||
}
|
||||
|
||||
fun main() {
|
||||
val sections = Files.readString(Path.of("input.txt"))
|
||||
.split("\n\n")
|
||||
val seeds = sections[0].substringAfter(": ")
|
||||
.split(' ')
|
||||
.map { it.toLong() }
|
||||
val mappings = sections.subList(1, sections.size).associate { section ->
|
||||
val lines = section.split('\n')
|
||||
val (from, to) = lines[0].substringBefore(" map:")
|
||||
.split("-to-")
|
||||
val map = Mapping(to, lines.subList(1, lines.size).map { line ->
|
||||
val (a, b, c) = line.split(' ').map { it.toLong() }
|
||||
MapLine(Triple(a, b, c))
|
||||
})
|
||||
from to map
|
||||
}
|
||||
val p1 = seeds.minOf { s ->
|
||||
var category = "seed"
|
||||
var n = s
|
||||
while (category != "location") {
|
||||
val mapping = mappings[category]!!
|
||||
n = mapping.get(n)
|
||||
category = mapping.to
|
||||
}
|
||||
n
|
||||
}
|
||||
println("Part 1: $p1")
|
||||
|
||||
val p2 = run {
|
||||
var category = "seed"
|
||||
var intervals = seeds.chunked(2)
|
||||
.map { (s, l) -> Interval(s, s + l - 1) }
|
||||
while (category != "location") {
|
||||
val mapping = mappings[category]!!
|
||||
intervals = intervals.flatMap { mapping.getInterval(it) }
|
||||
category = mapping.to
|
||||
}
|
||||
intervals.minOf { it.start }
|
||||
}
|
||||
println("Part 2: $p2")
|
||||
}
|
||||
Loading…
Reference in New Issue