Day 11, puzzle 1
This commit is contained in:
jazzpi
parent
b7005f244d
commit
4f5d6d7fa0
239
Cargo.lock
generated
239
Cargo.lock
generated
@ -15,9 +15,137 @@ dependencies = [
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name = "aoc22"
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version = "0.1.0"
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dependencies = [
|
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"env_logger",
|
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"itertools",
|
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"log",
|
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"regex",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "bitflags"
|
||||
version = "1.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
|
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|
||||
[[package]]
|
||||
name = "cc"
|
||||
version = "1.0.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
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|
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[[package]]
|
||||
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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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
|
||||
name = "either"
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||||
version = "1.8.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
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[[package]]
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name = "env_logger"
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version = "0.10.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "85cdab6a89accf66733ad5a1693a4dcced6aeff64602b634530dd73c1f3ee9f0"
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dependencies = [
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"humantime",
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"is-terminal",
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"log",
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"regex",
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"termcolor",
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]
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[[package]]
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name = "errno"
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version = "0.2.8"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f639046355ee4f37944e44f60642c6f3a7efa3cf6b78c78a0d989a8ce6c396a1"
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dependencies = [
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"errno-dragonfly",
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"libc",
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"winapi",
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]
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[[package]]
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name = "errno-dragonfly"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
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dependencies = [
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"cc",
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"libc",
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]
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[[package]]
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name = "hermit-abi"
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version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ee512640fe35acbfb4bb779db6f0d80704c2cacfa2e39b601ef3e3f47d1ae4c7"
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dependencies = [
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"libc",
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]
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[[package]]
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name = "humantime"
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version = "2.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
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[[package]]
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name = "io-lifetimes"
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version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "46112a93252b123d31a119a8d1a1ac19deac4fac6e0e8b0df58f0d4e5870e63c"
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dependencies = [
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"libc",
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"windows-sys",
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]
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[[package]]
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name = "is-terminal"
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version = "0.4.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "927609f78c2913a6f6ac3c27a4fe87f43e2a35367c0c4b0f8265e8f49a104330"
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dependencies = [
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"hermit-abi",
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"io-lifetimes",
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"rustix",
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"windows-sys",
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]
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[[package]]
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name = "itertools"
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version = "0.10.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
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dependencies = [
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"either",
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]
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[[package]]
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name = "libc"
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version = "0.2.138"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
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[[package]]
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name = "linux-raw-sys"
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version = "0.1.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
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[[package]]
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name = "log"
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version = "0.4.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "memchr"
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version = "2.5.0"
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@ -40,3 +168,114 @@ name = "regex-syntax"
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version = "0.6.28"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"
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[[package]]
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name = "rustix"
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version = "0.36.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a3807b5d10909833d3e9acd1eb5fb988f79376ff10fce42937de71a449c4c588"
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dependencies = [
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"bitflags",
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"errno",
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"io-lifetimes",
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"libc",
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"linux-raw-sys",
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"windows-sys",
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]
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[[package]]
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name = "termcolor"
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version = "1.1.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
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dependencies = [
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"winapi-util",
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]
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[[package]]
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name = "winapi"
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version = "0.3.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
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dependencies = [
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"winapi-i686-pc-windows-gnu",
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"winapi-x86_64-pc-windows-gnu",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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[[package]]
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name = "winapi-util"
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version = "0.1.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
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dependencies = [
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"winapi",
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]
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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[[package]]
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name = "windows-sys"
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version = "0.42.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
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dependencies = [
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"windows_aarch64_gnullvm",
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"windows_aarch64_msvc",
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"windows_i686_gnu",
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"windows_i686_msvc",
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"windows_x86_64_gnu",
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"windows_x86_64_gnullvm",
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"windows_x86_64_msvc",
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]
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[[package]]
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name = "windows_aarch64_gnullvm"
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version = "0.42.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
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[[package]]
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name = "windows_aarch64_msvc"
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version = "0.42.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
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[[package]]
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name = "windows_i686_gnu"
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version = "0.42.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
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|
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[[package]]
|
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name = "windows_i686_msvc"
|
||||
version = "0.42.0"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.42.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
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@ -7,6 +7,9 @@ edition = "2021"
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[dependencies]
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regex = "1"
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itertools = "^0.10"
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log = "^0.4"
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env_logger = "^0.10"
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[[bin]]
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name = "d1p1"
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22
src/bin/d11p1.rs
Normal file
22
src/bin/d11p1.rs
Normal file
@ -0,0 +1,22 @@
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use aoc22::{
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day11::{self, monkey_business},
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util,
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};
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const N_ROUNDS: usize = 20;
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|
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pub fn main() {
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env_logger::init();
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let monkeys = day11::parse_monkeys(&util::parse_input());
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for _ in 0..20 {
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day11::do_round(&monkeys);
|
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}
|
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|
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println!(
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"Monkey business after {} rounds is {}",
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N_ROUNDS,
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monkey_business(&monkeys)
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);
|
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}
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199
src/day11.rs
Normal file
199
src/day11.rs
Normal file
@ -0,0 +1,199 @@
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use std::{borrow::BorrowMut, cell::RefCell, collections::VecDeque};
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|
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use itertools::Itertools;
|
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use regex::Regex;
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|
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#[derive(Debug)]
|
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pub enum OpKind {
|
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Add,
|
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Mul,
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}
|
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|
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#[derive(Debug)]
|
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pub enum OpParam {
|
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Old,
|
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Num(usize),
|
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}
|
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|
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#[derive(Debug)]
|
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pub struct Operation {
|
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pub kind: OpKind,
|
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pub a: OpParam,
|
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pub b: OpParam,
|
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}
|
||||
|
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#[derive(Debug)]
|
||||
pub struct Test {
|
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pub div: usize,
|
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pub target_true: usize,
|
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pub target_false: usize,
|
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}
|
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|
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#[derive(Debug)]
|
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pub struct Monkey {
|
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pub activity: usize,
|
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pub items: VecDeque<usize>,
|
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pub op: Operation,
|
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pub test: Test,
|
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}
|
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|
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pub fn parse_monkeys(input: &String) -> Vec<RefCell<Monkey>> {
|
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let mut result = Vec::new();
|
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|
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for (n, monkey) in input.lines().chunks(7).into_iter().enumerate() {
|
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let (n_actual, monkey) = parse_monkey(&monkey.collect());
|
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assert_eq!(n, n_actual);
|
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result.push(RefCell::new(monkey));
|
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}
|
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|
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result
|
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}
|
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|
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fn parse_monkey(lines: &Vec<&str>) -> (usize, Monkey) {
|
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let re0 = Regex::new(r"^Monkey (\d)+:$").unwrap();
|
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let re1 = Regex::new(r"^ Starting items: ((\d+(?:, )?)+)$").unwrap();
|
||||
let re2 = Regex::new(r"^ Operation: new = (old|\d+) ([*+]) (old|\d+)$").unwrap();
|
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let re3 = Regex::new(r"^ Test: divisible by (\d+)$").unwrap();
|
||||
let re45 = Regex::new(r"^ If (true|false): throw to monkey (\d+)$").unwrap();
|
||||
|
||||
let n: usize = re0
|
||||
.captures(lines.get(0).unwrap())
|
||||
.unwrap()
|
||||
.get(1)
|
||||
.unwrap()
|
||||
.as_str()
|
||||
.parse()
|
||||
.unwrap();
|
||||
|
||||
let items = re1
|
||||
.captures(lines.get(1).unwrap())
|
||||
.unwrap()
|
||||
.get(1)
|
||||
.unwrap()
|
||||
.as_str()
|
||||
.split(", ")
|
||||
.map(|i| i.parse().expect(&format!("Invalid item: {}", i)))
|
||||
.collect();
|
||||
|
||||
let op = re2.captures(lines.get(2).unwrap()).unwrap();
|
||||
let op_a = parse_op_param(op.get(1).unwrap().as_str());
|
||||
let op_kind = parse_op_kind(op.get(2).unwrap().as_str());
|
||||
let op_b = parse_op_param(op.get(3).unwrap().as_str());
|
||||
let op = Operation {
|
||||
kind: op_kind,
|
||||
a: op_a,
|
||||
b: op_b,
|
||||
};
|
||||
|
||||
let test_div = re3
|
||||
.captures(lines.get(3).unwrap())
|
||||
.unwrap()
|
||||
.get(1)
|
||||
.unwrap()
|
||||
.as_str()
|
||||
.parse()
|
||||
.unwrap();
|
||||
|
||||
let test_true = re45.captures(lines.get(4).unwrap()).unwrap();
|
||||
assert_eq!(test_true.get(1).unwrap().as_str(), "true");
|
||||
let test_true = test_true.get(2).unwrap().as_str().parse().unwrap();
|
||||
|
||||
let test_false = re45.captures(lines.get(5).unwrap()).unwrap();
|
||||
assert_eq!(test_false.get(1).unwrap().as_str(), "false");
|
||||
let test_false = test_false.get(2).unwrap().as_str().parse().unwrap();
|
||||
|
||||
let test = Test {
|
||||
div: test_div,
|
||||
target_true: test_true,
|
||||
target_false: test_false,
|
||||
};
|
||||
|
||||
assert!(lines.len() == 6 || lines.get(6).unwrap().is_empty());
|
||||
|
||||
(
|
||||
n,
|
||||
Monkey {
|
||||
activity: 0,
|
||||
items,
|
||||
op,
|
||||
test,
|
||||
},
|
||||
)
|
||||
}
|
||||
|
||||
fn parse_op_param(s: &str) -> OpParam {
|
||||
if s == "old" {
|
||||
OpParam::Old
|
||||
} else {
|
||||
OpParam::Num(s.parse().unwrap())
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_op_kind(s: &str) -> OpKind {
|
||||
match s {
|
||||
"+" => OpKind::Add,
|
||||
"*" => OpKind::Mul,
|
||||
_ => panic!("Unknown OpKind {}", s),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn do_round(monkeys: &Vec<RefCell<Monkey>>) {
|
||||
for n in 0..monkeys.len() {
|
||||
let mut monkey = monkeys.get(n).unwrap().borrow_mut();
|
||||
log::debug!("Monkey {}", n);
|
||||
while !monkey.items.is_empty() {
|
||||
monkey.activity += 1;
|
||||
let mut item = monkey.items.pop_front().unwrap();
|
||||
log::debug!(" Monkey inspects an item with a worry level of {}.", item);
|
||||
item = run_op(&monkey.op, item);
|
||||
log::debug!(" Worry level increases to {}.", item);
|
||||
item /= 3;
|
||||
log::debug!(
|
||||
" Monkey gets bored with item. Worry level is divided by 3 to {}.",
|
||||
item
|
||||
);
|
||||
let target = if item % monkey.test.div == 0 {
|
||||
log::debug!(
|
||||
"Current worry level is not divisible by {}",
|
||||
monkey.test.div
|
||||
);
|
||||
monkey.test.target_true
|
||||
} else {
|
||||
log::debug!("Current worry level is divisible by {}", monkey.test.div);
|
||||
monkey.test.target_false
|
||||
};
|
||||
log::debug!(
|
||||
"Item with worry level {} is thrown to monkey {}.",
|
||||
item,
|
||||
target
|
||||
);
|
||||
let mut target = &mut monkeys.get(target).unwrap().borrow_mut().items;
|
||||
target.push_back(item);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn run_op(op: &Operation, item: usize) -> usize {
|
||||
let a = match op.a {
|
||||
OpParam::Old => item,
|
||||
OpParam::Num(n) => n,
|
||||
};
|
||||
let b = match op.b {
|
||||
OpParam::Old => item,
|
||||
OpParam::Num(n) => n,
|
||||
};
|
||||
match op.kind {
|
||||
OpKind::Add => a + b,
|
||||
OpKind::Mul => a * b,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn monkey_business(monkeys: &Vec<RefCell<Monkey>>) -> usize {
|
||||
monkeys
|
||||
.iter()
|
||||
.map(|m| m.borrow().activity)
|
||||
.sorted()
|
||||
.rev()
|
||||
.take(2)
|
||||
.product()
|
||||
}
|
||||
@ -1,5 +1,6 @@
|
||||
pub mod day1;
|
||||
pub mod day10;
|
||||
pub mod day11;
|
||||
pub mod day2;
|
||||
pub mod day3;
|
||||
pub mod day4;
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user