Complete day 11.1
This commit is contained in:
parent
2f48b0e912
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GPG key ID:
49670FD774E43268
78
day-11/Cargo.lock
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78
day-11/Cargo.lock
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@ -0,0 +1,78 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "day-11"
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version = "0.1.0"
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dependencies = [
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"indoc",
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||||
]
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[[package]]
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||||
name = "indoc"
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||||
version = "0.3.6"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
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dependencies = [
|
||||
"indoc-impl",
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||||
"proc-macro-hack",
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||||
]
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||||
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[[package]]
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name = "indoc-impl"
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||||
version = "0.3.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
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dependencies = [
|
||||
"proc-macro-hack",
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"proc-macro2",
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"quote",
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"syn",
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"unindent",
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]
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[[package]]
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name = "proc-macro-hack"
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||||
version = "0.5.19"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
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[[package]]
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name = "proc-macro2"
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version = "1.0.24"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
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dependencies = [
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"unicode-xid",
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]
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[[package]]
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name = "quote"
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version = "1.0.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "syn"
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version = "1.0.54"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9a2af957a63d6bd42255c359c93d9bfdb97076bd3b820897ce55ffbfbf107f44"
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||||
dependencies = [
|
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"proc-macro2",
|
||||
"quote",
|
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"unicode-xid",
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]
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[[package]]
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name = "unicode-xid"
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||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
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[[package]]
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name = "unindent"
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||||
version = "0.1.7"
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||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
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10
day-11/Cargo.toml
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10
day-11/Cargo.toml
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@ -0,0 +1,10 @@
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[package]
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name = "day-11"
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version = "0.1.0"
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authors = ["Tristan Daniël Maat <tm@tlater.net>"]
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edition = "2018"
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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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indoc = "0.3"
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93
day-11/input
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93
day-11/input
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LLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLLLLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLLLLLLLL.LLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLL.LL.LLLLLLLL.LLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLL.LLLLL.L.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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..L...L.L..L.LL.....L.L..L...L.L.....L.L...LLL..L....L.L.LL.LL...L.....LLL.....L...L..L..L.......
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LLLLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLLLLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLL.LLLL.LLLLLLLLLLLLL
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.....LLL....L..L.L..L.L..L...L.L.LL.....L...L..LL.LL..L.L.LL...LL....LL.....L.....L.L.LL.L..L.L..
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.L.LLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLL..LLLLLLLLLLLLLLLLLLLLLL
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LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LL.LLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLL.LLL.LLLLLLLLL.LLLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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..L.L.LL.L..LL..L..LL.L..L................L....L............L.L..L...L...L..LLLL....L.L..LL....L.
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LLLLLL.LLL.LLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.L.LLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLL.LLLLLLLLLLLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLL.LLL.LLLL
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LL.L.L.L.....L..L...L.L...L.......L...LLL...L.LL.L.....L.LLL.LL....LLLLL.L....LLL.L..LL..L....L.L
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.L.LLLLLLLLLLLLLLLLLLLL
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLL.LLL
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.L.LL..LL...L....LL...L.LL.L....LL.LL......L..L........LL..LLL..L...LLL.....LL....L.L...L.....L..
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LLLLLLLLLL.LLLL.LLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLL.LLL.LLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLL.L.LLLLLLLLLLLLL
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.LLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLL.L.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLL.LLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLL
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LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLL.LLLLLLL.LLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLLLLLLLLLLLLLLLL.LLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLL.LLLLLLL.LLL.LLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLL
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..L....LL..LL.LLLL......L..L...LLL.L......L.L.....L....L....LLLL.....L..LL...L....L....LLL....LL.
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LLLLLLLLLLLLLLL.LLLL.LLLLL.LLLLLLLL..LLLLLL.LLLLLLL.LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLL..LLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLL.LLLLL.LLLLLLL.LLL.LLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLL.LLL..LLLLLLLL.LL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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...LL.LL.....LL..LLL.....LL....LL....L.LL.L.LL....L........LLLL..LLLLLL.L..L..LLL......L....L....
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L.LLL.................LLL....L...LL..........L.L.L.......L.....L.....LLLLLL......L.......L...L.LL
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LLLLLLLLLLLLLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLL.LLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLL.LL.LLLL.LLLLLLL.LLLLLL.LLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLLLLLLL
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LLLLLLLLLLLLLLL.LLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLL.LLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLLLLLLL.LLL..LLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLL.LLLLLLLLLLLLLLL.LLLLLLLL.LLLL.LLLLLLLL
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LLLLLLLLLL.LLLL.LLLL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLLLLLLLLLLL..LLLLLLLLLLLL.LLLLLLLL
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180
day-11/src/main.rs
Normal file
180
day-11/src/main.rs
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use std::fs;
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fn main() -> Result<(), Box<dyn std::error::Error>> {
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let input = fs::read_to_string("input")?;
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let layout = parse_layout(&input)?;
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// Part 1
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let result = count_eventually_occupied_seats(&layout);
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println!("{}", result);
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Ok(())
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}
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#[derive(Copy, Clone, Debug, PartialEq)]
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enum Seating {
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Occupied,
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Empty,
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Floor,
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}
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impl Seating {
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fn new(symbol: char) -> Result<Self, String> {
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match symbol {
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'#' => Ok(Seating::Occupied),
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'L' => Ok(Seating::Empty),
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'.' => Ok(Seating::Floor),
|
||||
rubbish => Err(format!("Found some rubbish on the floor, area must be clean to conserve human behavior: {}", rubbish))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_layout(input: &str) -> Result<Vec<Vec<Seating>>, String> {
|
||||
input
|
||||
.lines()
|
||||
.map(|line| line.chars().map(Seating::new).collect())
|
||||
.collect()
|
||||
}
|
||||
|
||||
fn print_layout(layout: &Vec<Vec<Seating>>) {
|
||||
let output: String = layout
|
||||
.iter()
|
||||
.map(|row| {
|
||||
let mut row: String = row
|
||||
.iter()
|
||||
.map(|c| match c {
|
||||
Seating::Occupied => '#',
|
||||
Seating::Empty => 'L',
|
||||
Seating::Floor => '.',
|
||||
})
|
||||
.collect();
|
||||
row.push('\n');
|
||||
row
|
||||
})
|
||||
.collect();
|
||||
|
||||
println!("{}", output);
|
||||
}
|
||||
|
||||
fn get_adjacent(layout: &Vec<Vec<Seating>>, i: usize, j: usize) -> Vec<Option<&Seating>> {
|
||||
let adjacent: [[usize; 2]; 8] = [
|
||||
[0, 0],
|
||||
[0, 1],
|
||||
[0, 2],
|
||||
[1, 0],
|
||||
[1, 2],
|
||||
[2, 0],
|
||||
[2, 1],
|
||||
[2, 2],
|
||||
];
|
||||
|
||||
adjacent
|
||||
.iter()
|
||||
.map(|[nudge_row, nudge_col]| {
|
||||
if let Some(row) = (i + nudge_row).checked_sub(1) {
|
||||
if let Some(row) = layout.get(row) {
|
||||
if let Some(col) = (j + nudge_col).checked_sub(1) {
|
||||
row.get(col)
|
||||
} else {
|
||||
None
|
||||
}
|
||||
} else {
|
||||
None
|
||||
}
|
||||
} else {
|
||||
None
|
||||
}
|
||||
})
|
||||
.collect()
|
||||
}
|
||||
|
||||
fn simulate_people(layout: &Vec<Vec<Seating>>) -> (Vec<Vec<Seating>>, usize) {
|
||||
let mut changes = 0;
|
||||
|
||||
let layout = layout
|
||||
.iter()
|
||||
.enumerate()
|
||||
.map(|(i, row)| {
|
||||
row.iter()
|
||||
.enumerate()
|
||||
.map(|(j, seat)| match seat {
|
||||
Seating::Occupied => {
|
||||
if get_adjacent(layout, i, j)
|
||||
.iter()
|
||||
.filter(|seat| **seat == Some(&Seating::Occupied))
|
||||
.count()
|
||||
>= 4
|
||||
{
|
||||
changes += 1;
|
||||
Seating::Empty
|
||||
} else {
|
||||
Seating::Occupied
|
||||
}
|
||||
}
|
||||
Seating::Empty => {
|
||||
if get_adjacent(layout, i, j)
|
||||
.iter()
|
||||
.any(|seat| *seat == Some(&Seating::Occupied))
|
||||
{
|
||||
Seating::Empty
|
||||
} else {
|
||||
changes += 1;
|
||||
Seating::Occupied
|
||||
}
|
||||
}
|
||||
Seating::Floor => Seating::Floor,
|
||||
})
|
||||
.collect()
|
||||
})
|
||||
.collect();
|
||||
|
||||
(layout, changes)
|
||||
}
|
||||
|
||||
fn count_eventually_occupied_seats(layout: &Vec<Vec<Seating>>) -> usize {
|
||||
let mut loop_layout = layout.clone();
|
||||
|
||||
loop {
|
||||
let (res, changes) = simulate_people(&loop_layout);
|
||||
loop_layout = res;
|
||||
|
||||
if changes == 0 {
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
loop_layout
|
||||
.iter()
|
||||
.flatten()
|
||||
.filter(|seat| **seat == Seating::Occupied)
|
||||
.count()
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use indoc::indoc;
|
||||
|
||||
#[test]
|
||||
fn test_simple() -> Result<(), Box<dyn std::error::Error>> {
|
||||
let input = indoc!(
|
||||
"L.LL.LL.LL
|
||||
LLLLLLL.LL
|
||||
L.L.L..L..
|
||||
LLLL.LL.LL
|
||||
L.LL.LL.LL
|
||||
L.LLLLL.LL
|
||||
..L.L.....
|
||||
LLLLLLLLLL
|
||||
L.LLLLLL.L
|
||||
L.LLLLL.LL
|
||||
"
|
||||
);
|
||||
|
||||
let layout = parse_layout(&input)?;
|
||||
let result = count_eventually_occupied_seats(&layout);
|
||||
|
||||
assert_eq!(result, 37);
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue