day 05
This commit is contained in:
Moritz Hölting
parent
920b21dbab
commit
f88c8db711
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@ -2,6 +2,51 @@
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# It is not intended for manual editing.
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# It is not intended for manual editing.
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version = 3
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version = 3
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[[package]]
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name = "autocfg"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "crossbeam-deque"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "ce6fd6f855243022dcecf8702fef0c297d4338e226845fe067f6341ad9fa0cef"
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dependencies = [
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"cfg-if",
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"crossbeam-epoch",
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-epoch"
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version = "0.9.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "ae211234986c545741a7dc064309f67ee1e5ad243d0e48335adc0484d960bcc7"
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dependencies = [
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"autocfg",
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"cfg-if",
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"crossbeam-utils",
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"memoffset",
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"scopeguard",
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]
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[[package]]
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name = "crossbeam-utils"
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||||||
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version = "0.8.16"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5a22b2d63d4d1dc0b7f1b6b2747dd0088008a9be28b6ddf0b1e7d335e3037294"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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[[package]]
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name = "day-01"
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name = "day-01"
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version = "0.1.0"
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version = "0.1.0"
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@ -23,12 +68,45 @@ dependencies = [
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"nom",
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"nom",
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]
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]
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[[package]]
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name = "day-05"
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version = "0.1.0"
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dependencies = [
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"itertools",
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"ranges",
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"rayon",
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]
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[[package]]
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name = "either"
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version = "1.9.0"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
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||||||
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||||||
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[[package]]
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||||||
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name = "itertools"
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||||||
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version = "0.12.0"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "25db6b064527c5d482d0423354fcd07a89a2dfe07b67892e62411946db7f07b0"
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dependencies = [
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"either",
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]
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[[package]]
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[[package]]
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name = "memchr"
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name = "memchr"
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version = "2.6.4"
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version = "2.6.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
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checksum = "f665ee40bc4a3c5590afb1e9677db74a508659dfd71e126420da8274909a0167"
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[[package]]
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name = "memoffset"
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version = "0.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5a634b1c61a95585bd15607c6ab0c4e5b226e695ff2800ba0cdccddf208c406c"
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dependencies = [
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"autocfg",
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]
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[[package]]
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[[package]]
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name = "minimal-lexical"
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name = "minimal-lexical"
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version = "0.2.1"
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version = "0.2.1"
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@ -44,3 +122,35 @@ dependencies = [
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"memchr",
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"memchr",
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"minimal-lexical",
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"minimal-lexical",
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]
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]
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[[package]]
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name = "ranges"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f781d391cd4838df77e09fd26e33a87e0ac9bf2edf6ff770cfc65f83d50e3948"
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[[package]]
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name = "rayon"
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version = "1.8.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9c27db03db7734835b3f53954b534c91069375ce6ccaa2e065441e07d9b6cdb1"
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dependencies = [
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"either",
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"rayon-core",
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]
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[[package]]
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name = "rayon-core"
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version = "1.12.0"
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|
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5ce3fb6ad83f861aac485e76e1985cd109d9a3713802152be56c3b1f0e0658ed"
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dependencies = [
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"crossbeam-deque",
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"crossbeam-utils",
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]
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[[package]]
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name = "scopeguard"
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version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
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@ -3,8 +3,11 @@ resolver = "2"
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members = [
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members = [
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"day-01",
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"day-01",
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"day-02",
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"day-02",
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"day-03"
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"day-03",
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"day-05"
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]
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]
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[workspace.dependencies]
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[workspace.dependencies]
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itertools = "0.12.0"
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nom = "7.1.3"
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nom = "7.1.3"
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rayon = "1.8.0"
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@ -0,0 +1,11 @@
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[package]
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name = "day-05"
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version = "0.1.0"
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edition = "2021"
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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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itertools.workspace = true
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ranges = "0.3.3"
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rayon.workspace = true
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@ -0,0 +1,245 @@
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seeds: 3037945983 743948277 2623786093 391282324 195281306 62641412 769611781 377903357 2392990228 144218002 1179463071 45174621 2129467491 226193957 1994898626 92402726 1555863421 340215202 426882817 207194644
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seed-to-soil map:
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3078006360 2182201339 30483272
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803630304 624445326 165226844
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2393736333 2745251526 281120946
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717936870 789672170 85693434
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1229789645 958121808 15306435
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0 1296097276 324787204
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3108489632 3320726838 7935838
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3303687385 3759870274 225700702
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||||||
|
soil-to-fertilizer map:
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||||||
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2937874770 2957653952 339980892
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1886469734 2145122669 192293654
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3277855662 822424488 19779182
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2622882196 2393077006 314992574
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3449876679 3769116301 525850995
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0 2337416323 2650514
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||||||
|
fertilizer-to-water map:
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||||||
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861477134 5168332 68211907
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||||||
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136969509 2229711837 29094441
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0 879458527 8760514
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||||||
|
water-to-light map:
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||||||
|
3846882465 367033980 98093832
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1878565977 3292746518 62917983
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light-to-temperature map:
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2777813298 2971073270 586210802
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1687968665 0 334152507
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0 2095520416 192800212
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temperature-to-humidity map:
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||||||
|
3005272654 658755604 22724553
|
||||||
|
3989311833 4211755817 83211479
|
||||||
|
280430452 3186777866 320785315
|
||||||
|
111057730 2310760926 65268270
|
||||||
|
176326000 3659551759 104104452
|
||||||
|
1895023635 1628956941 16940917
|
||||||
|
4093334384 3507563181 132435104
|
||||||
|
3027997207 132069066 179421352
|
||||||
|
1477400307 311490418 228701417
|
||||||
|
2934949875 2225723089 70322779
|
||||||
|
601215767 681480157 100836818
|
||||||
|
2919877316 3763656211 15072559
|
||||||
|
3969758359 3639998285 19553474
|
||||||
|
3207418559 2613356473 573421393
|
||||||
|
4090273993 2222662698 3060391
|
||||||
|
1911964552 995025737 126491355
|
||||||
|
2667855964 782316975 84249581
|
||||||
|
1240073030 2376029196 237327277
|
||||||
|
702052585 4092289609 63564364
|
||||||
|
|
||||||
|
humidity-to-location map:
|
||||||
|
2848734682 2982177676 22285660
|
||||||
|
3380476660 3717224958 24199873
|
||||||
|
3201930685 734568132 100088122
|
||||||
|
764851360 4087339561 71173655
|
||||||
|
188169313 2953711255 28466421
|
||||||
|
3189375901 2832231336 12554784
|
||||||
|
3369909102 47909639 10567558
|
||||||
|
47909639 3741424831 99762378
|
||||||
|
2871020342 58477197 7400020
|
||||||
|
3042878026 3409715295 146497875
|
||||||
|
1196348942 2734551883 97679453
|
||||||
|
3418711171 3387790447 21924848
|
||||||
|
1587973141 573552831 65833150
|
||||||
|
1121006696 889063447 75342246
|
||||||
|
1294028395 567796360 5756471
|
||||||
|
3302018807 499906065 67890295
|
||||||
|
2915035031 2921050411 32660844
|
||||||
|
1982422286 3064299481 301982155
|
||||||
|
704786709 4084864539 2475022
|
||||||
|
299076626 834656254 54407193
|
||||||
|
3623423724 2182055199 207702290
|
||||||
|
388851709 2881400789 39649622
|
||||||
|
147672017 3592293988 40497296
|
||||||
|
2947695875 639385981 95182151
|
||||||
|
707261731 3556213170 36080818
|
||||||
|
2284404441 2389757489 138657919
|
||||||
|
353483819 2146687309 35367890
|
||||||
|
2519626540 441189704 58319568
|
||||||
|
743342549 3366281636 21508811
|
||||||
|
2878420362 2844786120 36614669
|
||||||
|
216635734 4212526404 82440892
|
||||||
|
3440636019 1235194267 182787705
|
||||||
|
2577946108 964405693 270788574
|
||||||
|
1453221956 3877915244 70435137
|
||||||
|
836025015 1861705628 284981681
|
||||||
|
1299784866 499509272 396793
|
||||||
|
1859942766 3948350381 122479520
|
||||||
|
2423062360 3004463336 59836145
|
||||||
|
3404676533 4070829901 14034638
|
||||||
|
1399208768 4158513216 54013188
|
||||||
|
1300181659 342162595 99027109
|
||||||
|
1523657093 3652908910 64316048
|
||||||
|
3851243640 1417981972 443723656
|
||||||
|
3831126014 3632791284 20117626
|
||||||
|
1653806291 2528415408 206136475
|
||||||
|
428501331 65877217 276285378
|
||||||
|
2482898505 3841187209 36728035
|
||||||
|
|
@ -0,0 +1,115 @@
|
||||||
|
use std::str::Lines;
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
println!("{}", part1(include_str!("./input.txt")));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
struct MapEntry {
|
||||||
|
destination: u64,
|
||||||
|
source: u64,
|
||||||
|
range_length: u64,
|
||||||
|
}
|
||||||
|
impl MapEntry {
|
||||||
|
fn new(destination: u64, source: u64, range_length: u64) -> Self {
|
||||||
|
Self {
|
||||||
|
destination,
|
||||||
|
source,
|
||||||
|
range_length,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
fn get(&self, value: u64) -> Option<u64> {
|
||||||
|
if value >= self.source && (self.source..self.source + self.range_length).contains(&value) {
|
||||||
|
Some(value - self.source + self.destination)
|
||||||
|
} else {
|
||||||
|
None
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn part1(input: &str) -> u64 {
|
||||||
|
let mut seeds = Vec::new();
|
||||||
|
let mut seed_to_soil = Vec::new();
|
||||||
|
let mut soil_to_fertilizer = Vec::new();
|
||||||
|
let mut fertilizer_to_water = Vec::new();
|
||||||
|
let mut water_to_light = Vec::new();
|
||||||
|
let mut light_to_temperature = Vec::new();
|
||||||
|
let mut temperature_to_humidity = Vec::new();
|
||||||
|
let mut humidity_to_location = Vec::new();
|
||||||
|
|
||||||
|
input.split("\n\n").for_each(|part| {
|
||||||
|
let mut lines = part.lines();
|
||||||
|
let mut split = lines.next().unwrap().split(':');
|
||||||
|
let key = split.next().unwrap();
|
||||||
|
match key {
|
||||||
|
"seeds" => split
|
||||||
|
.next()
|
||||||
|
.unwrap()
|
||||||
|
.split_ascii_whitespace()
|
||||||
|
.for_each(|s| {
|
||||||
|
seeds.push(s.parse::<u64>().unwrap());
|
||||||
|
}),
|
||||||
|
"seed-to-soil map" => process_map(lines, &mut seed_to_soil),
|
||||||
|
"soil-to-fertilizer map" => process_map(lines, &mut soil_to_fertilizer),
|
||||||
|
"fertilizer-to-water map" => process_map(lines, &mut fertilizer_to_water),
|
||||||
|
"water-to-light map" => process_map(lines, &mut water_to_light),
|
||||||
|
"light-to-temperature map" => process_map(lines, &mut light_to_temperature),
|
||||||
|
"temperature-to-humidity map" => process_map(lines, &mut temperature_to_humidity),
|
||||||
|
"humidity-to-location map" => process_map(lines, &mut humidity_to_location),
|
||||||
|
key => unreachable!("Invalid key: {}", key),
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
let maps = [
|
||||||
|
seed_to_soil,
|
||||||
|
soil_to_fertilizer,
|
||||||
|
fertilizer_to_water,
|
||||||
|
water_to_light,
|
||||||
|
light_to_temperature,
|
||||||
|
temperature_to_humidity,
|
||||||
|
humidity_to_location,
|
||||||
|
];
|
||||||
|
|
||||||
|
seeds
|
||||||
|
.into_iter()
|
||||||
|
.map(|s| find_location(s, &maps))
|
||||||
|
.min()
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn process_map(lines: Lines, map: &mut Vec<MapEntry>) {
|
||||||
|
lines
|
||||||
|
.map(|l| {
|
||||||
|
let parts = l.split_ascii_whitespace().collect::<Vec<_>>();
|
||||||
|
MapEntry::new(
|
||||||
|
parts[0].parse::<u64>().unwrap(),
|
||||||
|
parts[1].parse::<u64>().unwrap(),
|
||||||
|
parts[2].parse::<u64>().unwrap(),
|
||||||
|
)
|
||||||
|
})
|
||||||
|
.for_each(|entry| {
|
||||||
|
map.push(entry);
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn find_location(seed: u64, maps: &[Vec<MapEntry>; 7]) -> u64 {
|
||||||
|
let mut current = seed;
|
||||||
|
for map in maps.iter() {
|
||||||
|
current = map
|
||||||
|
.iter()
|
||||||
|
.find_map(|entry| entry.get(current))
|
||||||
|
.unwrap_or(current);
|
||||||
|
}
|
||||||
|
current
|
||||||
|
}
|
||||||
|
|
||||||
|
#[cfg(test)]
|
||||||
|
mod tests {
|
||||||
|
use super::*;
|
||||||
|
const INPUT: &str = "seeds: 79 14 55 13\n\nseed-to-soil map:\n50 98 2\n52 50 48\n\nsoil-to-fertilizer map:\n0 15 37\n37 52 2\n39 0 15\n\nfertilizer-to-water map:\n49 53 8\n0 11 42\n42 0 7\n57 7 4\n\nwater-to-light map:\n88 18 7\n18 25 70\n\nlight-to-temperature map:\n45 77 23\n81 45 19\n68 64 13\n\ntemperature-to-humidity map:\n0 69 1\n1 0 69\n\nhumidity-to-location map:\n60 56 37\n56 93 4";
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_part1() {
|
||||||
|
assert_eq!(part1(INPUT), 35);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,160 @@
|
||||||
|
use itertools::Itertools;
|
||||||
|
use ranges::{GenericRange, Ranges};
|
||||||
|
use rayon::prelude::*;
|
||||||
|
use std::{
|
||||||
|
ops::{Bound, Range, RangeBounds},
|
||||||
|
str::Lines,
|
||||||
|
};
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
println!("{}", part2(include_str!("./input.txt")));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
struct MapEntry {
|
||||||
|
destination: u64,
|
||||||
|
source: u64,
|
||||||
|
range_length: u64,
|
||||||
|
}
|
||||||
|
impl MapEntry {
|
||||||
|
fn new(destination: u64, source: u64, range_length: u64) -> Self {
|
||||||
|
Self {
|
||||||
|
destination,
|
||||||
|
source,
|
||||||
|
range_length,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
fn source_range(&self) -> Range<u64> {
|
||||||
|
self.source..(self.source + self.range_length)
|
||||||
|
}
|
||||||
|
fn get_offset(&self) -> i64 {
|
||||||
|
self.destination as i64 - self.source as i64
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn part2(input: &str) -> u64 {
|
||||||
|
let mut seeds = Vec::new();
|
||||||
|
let mut seed_to_soil = Vec::new();
|
||||||
|
let mut soil_to_fertilizer = Vec::new();
|
||||||
|
let mut fertilizer_to_water = Vec::new();
|
||||||
|
let mut water_to_light = Vec::new();
|
||||||
|
let mut light_to_temperature = Vec::new();
|
||||||
|
let mut temperature_to_humidity = Vec::new();
|
||||||
|
let mut humidity_to_location = Vec::new();
|
||||||
|
|
||||||
|
input.split("\n\n").for_each(|part| {
|
||||||
|
let mut lines = part.lines();
|
||||||
|
let mut split = lines.next().unwrap().split(':');
|
||||||
|
let key = split.next().unwrap();
|
||||||
|
match key {
|
||||||
|
"seeds" => split
|
||||||
|
.next()
|
||||||
|
.unwrap()
|
||||||
|
.split_ascii_whitespace()
|
||||||
|
.tuples()
|
||||||
|
.for_each(|(s, l)| {
|
||||||
|
let start = s.parse::<u64>().unwrap();
|
||||||
|
let length = l.parse::<u64>().unwrap();
|
||||||
|
seeds.push(start..(start + length));
|
||||||
|
}),
|
||||||
|
"seed-to-soil map" => process_map(lines, &mut seed_to_soil),
|
||||||
|
"soil-to-fertilizer map" => process_map(lines, &mut soil_to_fertilizer),
|
||||||
|
"fertilizer-to-water map" => process_map(lines, &mut fertilizer_to_water),
|
||||||
|
"water-to-light map" => process_map(lines, &mut water_to_light),
|
||||||
|
"light-to-temperature map" => process_map(lines, &mut light_to_temperature),
|
||||||
|
"temperature-to-humidity map" => process_map(lines, &mut temperature_to_humidity),
|
||||||
|
"humidity-to-location map" => process_map(lines, &mut humidity_to_location),
|
||||||
|
key => unreachable!("Invalid key: {}", key),
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
let maps = [
|
||||||
|
seed_to_soil,
|
||||||
|
soil_to_fertilizer,
|
||||||
|
fertilizer_to_water,
|
||||||
|
water_to_light,
|
||||||
|
light_to_temperature,
|
||||||
|
temperature_to_humidity,
|
||||||
|
humidity_to_location,
|
||||||
|
];
|
||||||
|
let seeds = seeds.into_iter().fold(Ranges::new(), |acc, r| acc.union(r));
|
||||||
|
|
||||||
|
find_min_location(seeds, &maps)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn process_map(lines: Lines, map: &mut Vec<MapEntry>) {
|
||||||
|
lines
|
||||||
|
.map(|l| {
|
||||||
|
let parts = l.split_ascii_whitespace().collect::<Vec<_>>();
|
||||||
|
MapEntry::new(
|
||||||
|
parts[0].parse::<u64>().unwrap(),
|
||||||
|
parts[1].parse::<u64>().unwrap(),
|
||||||
|
parts[2].parse::<u64>().unwrap(),
|
||||||
|
)
|
||||||
|
})
|
||||||
|
.for_each(|entry| {
|
||||||
|
map.push(entry);
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn find_min_location(seeds: Ranges<u64>, maps: &[Vec<MapEntry>; 7]) -> u64 {
|
||||||
|
let mut new_ranges = seeds;
|
||||||
|
for map in maps {
|
||||||
|
new_ranges = apply_map(new_ranges, map);
|
||||||
|
}
|
||||||
|
|
||||||
|
new_ranges
|
||||||
|
.as_slice()
|
||||||
|
.par_iter()
|
||||||
|
.map(|r| r.into_iter().min().unwrap())
|
||||||
|
.min()
|
||||||
|
.unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn apply_map(mut seeds: Ranges<u64>, map: &[MapEntry]) -> Ranges<u64> {
|
||||||
|
let mut new_ranges = Ranges::new();
|
||||||
|
for entry in map {
|
||||||
|
let matching_ranges_for_entry = seeds.clone().intersect(Ranges::from(entry.source_range()));
|
||||||
|
seeds = seeds.difference(matching_ranges_for_entry.clone());
|
||||||
|
|
||||||
|
let offset = entry.get_offset();
|
||||||
|
let offset_ranges = offset_ranges(matching_ranges_for_entry, offset);
|
||||||
|
|
||||||
|
new_ranges = new_ranges.union(offset_ranges);
|
||||||
|
}
|
||||||
|
new_ranges.union(seeds)
|
||||||
|
}
|
||||||
|
|
||||||
|
fn offset_ranges(ranges: Ranges<u64>, offset: i64) -> Ranges<u64> {
|
||||||
|
ranges
|
||||||
|
.as_slice()
|
||||||
|
.iter()
|
||||||
|
.map(|r| offset_range(*r, offset))
|
||||||
|
.collect::<Ranges<u64>>()
|
||||||
|
}
|
||||||
|
|
||||||
|
fn offset_range(range: GenericRange<u64>, offset: i64) -> GenericRange<u64> {
|
||||||
|
let range_start = if let Bound::Included(start) = range.start_bound() {
|
||||||
|
*start as i128 + offset as i128
|
||||||
|
} else {
|
||||||
|
panic!("should only be called with included start bound")
|
||||||
|
} as u64;
|
||||||
|
let range_end = if let Bound::Excluded(end) = range.end_bound() {
|
||||||
|
*end as i128 + offset as i128
|
||||||
|
} else {
|
||||||
|
panic!("should only be called with included start bound")
|
||||||
|
} as u64;
|
||||||
|
|
||||||
|
(range_start..range_end).into()
|
||||||
|
}
|
||||||
|
|
||||||
|
#[cfg(test)]
|
||||||
|
mod tests {
|
||||||
|
use super::*;
|
||||||
|
const INPUT: &str = "seeds: 79 14 55 13\n\nseed-to-soil map:\n50 98 2\n52 50 48\n\nsoil-to-fertilizer map:\n0 15 37\n37 52 2\n39 0 15\n\nfertilizer-to-water map:\n49 53 8\n0 11 42\n42 0 7\n57 7 4\n\nwater-to-light map:\n88 18 7\n18 25 70\n\nlight-to-temperature map:\n45 77 23\n81 45 19\n68 64 13\n\ntemperature-to-humidity map:\n0 69 1\n1 0 69\n\nhumidity-to-location map:\n60 56 37\n56 93 4";
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn test_part2() {
|
||||||
|
assert_eq!(part2(INPUT), 46);
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue