From 5a2aec7e76b498a97bed59218197ce472d1621b9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Fri, 4 Dec 2020 20:15:55 +0000
Subject: [PATCH 1/7] Complete day 4.1
---
day-4/.gitignore | 1 +
day-4/Cargo.lock | 78 ++++
day-4/Cargo.toml | 10 +
day-4/input | 1068 +++++++++++++++++++++++++++++++++++++++++++++
day-4/src/main.rs | 80 ++++
5 files changed, 1237 insertions(+)
create mode 100644 day-4/.gitignore
create mode 100644 day-4/Cargo.lock
create mode 100644 day-4/Cargo.toml
create mode 100644 day-4/input
create mode 100644 day-4/src/main.rs
diff --git a/day-4/.gitignore b/day-4/.gitignore
new file mode 100644
index 0000000..b83d222
--- /dev/null
+++ b/day-4/.gitignore
@@ -0,0 +1 @@
+/target/
diff --git a/day-4/Cargo.lock b/day-4/Cargo.lock
new file mode 100644
index 0000000..44f11e3
--- /dev/null
+++ b/day-4/Cargo.lock
@@ -0,0 +1,78 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "day-4"
+version = "0.1.0"
+dependencies = [
+ "indoc",
+]
+
+[[package]]
+name = "indoc"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
+dependencies = [
+ "indoc-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unindent",
+]
+
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8833e20724c24de12bbaba5ad230ea61c3eafb05b881c7c9d3cfe8638b187e68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "unindent"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
diff --git a/day-4/Cargo.toml b/day-4/Cargo.toml
new file mode 100644
index 0000000..223e26a
--- /dev/null
+++ b/day-4/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day-4"
+version = "0.1.0"
+authors = ["Tristan Daniël Maat <tm@tlater.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+indoc = "0.3"
diff --git a/day-4/input b/day-4/input
new file mode 100644
index 0000000..5b0a490
--- /dev/null
+++ b/day-4/input
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+hcl:#7d3b0c pid:658134059 hgt:65in byr:2005 ecl:#2dcb50 iyr:2012
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+hcl:#602927 eyr:2024
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+
+ecl:oth hcl:#623a2f
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+
+eyr:2020
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+byr:1934 iyr:2015 hcl:#341e13
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+ecl:brn
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+
+hgt:182cm pid:449667574 ecl:amb
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+
+byr:2011
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+
+ecl:grt pid:520129782 eyr:2020
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+hgt:156cm
+
+iyr:2015
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+
+ecl:gry byr:1971 pid:772131254
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+
+cid:125
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+
+pid:825704567 eyr:2032 byr:2024
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+
+cid:243 hcl:#cfa07d byr:1951 ecl:oth pid:382615614
+iyr:2018 eyr:2030 hgt:64in
+
+byr:1925 hgt:187cm ecl:oth eyr:2023 hcl:#888785
+
+eyr:2028 iyr:2013 ecl:brn byr:1923 cid:174 hcl:#b6652a hgt:154cm pid:274036240
+
+ecl:brn hgt:183cm iyr:2016
+byr:1922
+hcl:#efcc98 eyr:2030
+
+hgt:188cm
+byr:1979
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+
+hgt:76cm hcl:z cid:112 ecl:zzz
+pid:953385473 eyr:2020
+byr:1943
+
+ecl:#12c807
+byr:1954 eyr:1934 hgt:73cm hcl:#ceb3a1 iyr:2015 pid:704621520
+
+hgt:188cm hcl:#733820 eyr:2024 ecl:grn
+iyr:2018 byr:1982 pid:522812862
+
+hgt:68cm ecl:blu
+byr:2023 pid:875418461 iyr:2021 eyr:2020 hcl:#623a2f
+
+byr:1967
+pid:313706535 ecl:amb hcl:#888785
+iyr:2012
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+
+eyr:2026
+pid:288363970 cid:70 byr:1932 hgt:157cm iyr:2016 ecl:hzl hcl:#ceb3a1
+
+byr:1992 pid:539896055
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+cid:189 hgt:70in ecl:oth iyr:2019
+hcl:#866857
+
+hgt:158in
+ecl:gry byr:2028
+eyr:2036 cid:188
+hcl:#cfa07d
+pid:044279141
+
+eyr:2024 hgt:170cm ecl:hzl
+byr:1939 pid:851235247 iyr:2013
+hcl:#fffffd
+
+ecl:hzl hcl:#c0946f
+hgt:167cm
+eyr:2024 byr:1936 pid:463230636 cid:297
+iyr:2016
+
+pid:291401545 ecl:grn hcl:#b6652a iyr:2014
+hgt:185cm eyr:2025 byr:1947
+
+eyr:2029 pid:612595763
+iyr:2018 ecl:gry
+cid:290
+byr:1991 hcl:#733820
+hgt:150cm
+
+hgt:151cm
+pid:667532675 cid:134
+byr:1930
+hcl:#efcc98 iyr:2012
+ecl:oth
+
+ecl:gry
+hcl:#888785 hgt:161cm
+eyr:2023
+pid:467759498 cid:274
+
+eyr:2023 byr:1956 hgt:188cm iyr:2014 hcl:#b6652a pid:382721925 ecl:brn
+
+byr:1947 ecl:gry eyr:2020
+pid:874004905 hcl:#602927 hgt:161cm iyr:2029
+
+pid:164334257
+iyr:2014 cid:286 eyr:2020
+hcl:#733820
+ecl:gry byr:1959 hgt:165cm
+
+hgt:59in
+pid:#5b1362
+eyr:2028 iyr:1980 hcl:z byr:2030
+ecl:utc
+
+pid:604128460 iyr:2016 byr:1952 hgt:152cm ecl:grn hcl:#7d3b0c eyr:2021
+
+pid:7483106309 eyr:2005 hgt:158in byr:2024 iyr:1935 hcl:z
+ecl:#158994
+
+hcl:22207f eyr:1994
+cid:166 pid:#d8e64c ecl:utc
+byr:1966 hgt:70cm
+iyr:1980
+
+iyr:2012 pid:045892410 hgt:70in ecl:dne hcl:1a323a byr:1920 eyr:2022
+
+hcl:#18171d iyr:2019 eyr:2026
+hgt:191cm pid:514596186 cid:327 byr:1938 ecl:grn
+
+pid:904148746 hcl:#a97842 hgt:161cm
+cid:181
+iyr:2012 eyr:2020 ecl:oth
+
+iyr:2028
+eyr:2034
+cid:276 pid:#0e7ee2 byr:2020
+hgt:63cm ecl:gry
+hcl:z
+
+pid:4270554593 eyr:2031 ecl:lzr hgt:72cm
+iyr:2027 hcl:ffc210 cid:132
+byr:2008
+
+iyr:2018 pid:174cm cid:144
+ecl:#10b2ed byr:1931 eyr:2040 hcl:z hgt:68in
+
+pid:446746712
+iyr:1957
+ecl:oth cid:213 hgt:184cm byr:2008 hcl:z
+
+hcl:#7d3b0c iyr:2012 ecl:hzl
+eyr:2023 pid:270148060
+
+pid:832184923
+eyr:2023 hgt:180cm
+byr:1965 ecl:hzl cid:189 hcl:#a97842
+iyr:2016
+
+pid:688867083
+iyr:2011 hcl:#733820 cid:147 eyr:2021
+byr:1986 ecl:oth
+
+hgt:166in ecl:amb byr:2014
+pid:169cm hcl:#cfa07d iyr:1976
+
+hgt:64in byr:1987 hcl:01f3d7
+pid:553206412 eyr:2027 ecl:grn cid:336
+iyr:2012
+
+cid:336
+ecl:oth byr:1975
+pid:296100726 hcl:#6b5442 iyr:2016 hgt:180cm eyr:2029
+
+hcl:#ceb3a1 hgt:181cm pid:364719801 byr:1922 eyr:2029
+iyr:2010 cid:346 ecl:gry
+
+hcl:#1c7f1d cid:205
+hgt:184cm
+byr:1928
+pid:694275035 iyr:2018 ecl:blu eyr:2023
+
+eyr:1970
+hcl:z byr:2001
+pid:9244596 iyr:2030 hgt:187in ecl:blu
+
+hgt:96
+byr:2030 ecl:zzz eyr:1920 pid:115437655 hcl:z
+iyr:2017
+cid:344
+
+iyr:2018
+eyr:2023
+hcl:#888785 hgt:188cm
+ecl:amb byr:1992 pid:602211075
+
+pid:848099019 hgt:168cm iyr:2016
+eyr:2026 ecl:amb
+hcl:#866857 byr:1981
+
+iyr:2013 hcl:#623a2f hgt:151cm cid:135 byr:1974 eyr:2026 ecl:gry
+pid:313553018
+
+hcl:#733820
+byr:1986 hgt:182cm
+ecl:brn eyr:2024 iyr:2017
+pid:676008782
+
+eyr:2030 pid:833874339 iyr:2011 byr:1949 hgt:159cm
+ecl:brn hcl:#602927
+
+hgt:182cm hcl:#6b5442 pid:131549376 eyr:2029 iyr:2012
+ecl:gry byr:1926
+
+cid:55 ecl:amb iyr:2015 hgt:192cm hcl:#a97842
+byr:1944
+eyr:2027
+
+iyr:1944 eyr:2038 hcl:a2adf2 cid:99 byr:2006 hgt:67cm
+pid:154cm
+ecl:dne
+
+eyr:2005 hcl:#1495bd ecl:grt byr:2028
+iyr:2016 hgt:155 pid:182cm
+cid:326
+
+hgt:136
+pid:599182089 eyr:2020 byr:1945
+iyr:2012
+ecl:oth hcl:#18171d
+
+pid:4695182580
+iyr:2012
+ecl:brn eyr:2039 byr:1936
+hcl:#cfa07d
+
+ecl:hzl byr:1949 cid:133 hgt:159cm hcl:#b6652a pid:9833212692 iyr:2011 eyr:2030
+
+eyr:2020
+hgt:175cm
+cid:140 iyr:2014 byr:1980 hcl:#7d3b0c
+ecl:grn pid:400508366
+
+pid:#100a75 iyr:2016
+hgt:65
+eyr:2037 ecl:hzl
+byr:1962
+
+eyr:2024 pid:180cm hcl:#6b5442 hgt:154cm
+iyr:1964
+
+byr:1986 hgt:159cm ecl:brn
+pid:856817592 hcl:#cfa07d eyr:2024
+iyr:2017
+
+hgt:166cm
+byr:1996 hcl:#410645
+ecl:hzl iyr:2010 cid:178 pid:337713295
+eyr:2026
+
+iyr:2017 byr:1964 hgt:167cm hcl:#7d3b0c cid:298 ecl:brn pid:371416367
+
+byr:1929 iyr:2011 hcl:#fffffd ecl:blu
+pid:013408674 hgt:187cm eyr:2021
+
+hcl:#cfa07d byr:1986 cid:331
+iyr:2010 ecl:gry pid:616063053 hgt:150cm
+eyr:2028
+
+pid:013835033 iyr:2017 byr:1991
+hgt:154cm hcl:#efcc98 eyr:2020
+
+byr:1978 eyr:2024
+hgt:155cm iyr:2012 hcl:#694989 pid:914726069
+ecl:amb
+
+ecl:blu pid:139464317 hcl:#fffffd eyr:2024 byr:1970 hgt:72in iyr:2012
+
+byr:1965 hcl:#ceb3a1 ecl:hzl iyr:2019 pid:910593212 eyr:2029
+
+byr:1994 cid:228
+ecl:grn hgt:171cm pid:538884417 eyr:2025 iyr:2011 hcl:#6b5442
+
+cid:264 hcl:#623a2f
+hgt:186cm iyr:2012 ecl:brn eyr:2024 pid:304101929 byr:1954
+
+hgt:183cm byr:1987 hcl:z ecl:gry eyr:2020 pid:384983241 iyr:2015
+
+pid:#885c1a
+byr:2012 eyr:2034 ecl:#8ea705 iyr:2028 hgt:61cm hcl:z
+
+eyr:2023 hgt:156cm byr:1939 hcl:#cd2220 ecl:brn pid:484163297
+
+hgt:158in
+byr:2000 ecl:lzr
+iyr:2014
+eyr:2033 pid:50157400
+
+byr:1974 hcl:#c0946f
+iyr:2018 pid:285451524 cid:299 eyr:2029 hgt:184cm ecl:hzl
+
+byr:1974 hcl:#602927 hgt:151cm iyr:2013 pid:322935162 ecl:amb
+cid:209
+eyr:2026
+
+hcl:#341e13 iyr:2015
+ecl:gry byr:1970
+hgt:186cm
+pid:330151070 eyr:2034
+
+ecl:gry eyr:2023
+hgt:160cm hcl:#c0946f
+iyr:2011 byr:1926 pid:727347794
+
+iyr:2012
+byr:1974 hcl:#866857
+eyr:2025
+pid:933155590 hgt:167cm
+ecl:grn
+
+iyr:2015 ecl:gry eyr:2029
+byr:1967 hcl:#f9f576 hgt:170cm pid:439696954 cid:173
+
+eyr:2029 byr:1935 ecl:brn pid:165587982
+hcl:#6b5442
+iyr:2020
+
+eyr:2029 ecl:hzl hcl:#866857 byr:1994
+pid:308548232 hgt:162cm iyr:2012
+
+byr:1924 cid:274
+pid:028266367 eyr:2025 iyr:2017 hgt:169cm
+hcl:#cfa07d ecl:gry
+
+eyr:2025 byr:1995
+ecl:brn
+hgt:160cm
+pid:819047484
+hcl:#602927 iyr:2011
+
+pid:660383456
+iyr:2016 eyr:2022 hgt:158cm byr:1942 ecl:amb cid:334 hcl:#efcc98
+
+hcl:#6b5442 iyr:2024 cid:180 ecl:grn pid:167cm hgt:169
+
+eyr:2024 iyr:2017 hgt:165cm hcl:#7d3b0c byr:1920
+ecl:amb pid:236377188
+
+pid:063113952
+ecl:grn hcl:#341e13 hgt:166cm
+byr:1977 iyr:2017
+
+ecl:amb hgt:174cm
+eyr:2028 byr:2002
+hcl:#7d3b0c
+pid:428826816 iyr:2017
+
+byr:2025 ecl:dne hgt:167in pid:706379338
+iyr:2019 hcl:240e75 eyr:1971
+
+eyr:2021
+hcl:#efcc98 iyr:2014
+pid:358236477
+byr:1923 cid:73 hgt:165cm ecl:amb
+
+eyr:2030 cid:267
+ecl:brn
+pid:282023612 hcl:#c0946f iyr:2018 byr:1989
+hgt:72cm
+
+ecl:utc hcl:ea4b34 byr:2013
+pid:#d58d54
+hgt:107 iyr:2027 cid:296 eyr:2038
+
+byr:1946 eyr:2024 iyr:2012
+hcl:#341e13
+pid:765835791 hgt:159cm
+
+hcl:#341e13 byr:1927
+ecl:grn iyr:2011
+hgt:175cm eyr:2023 pid:638808763 cid:339
+
+eyr:2030 cid:160 byr:1994 hgt:163cm ecl:hzl iyr:2016 hcl:#623a2f pid:569304871
+
+byr:1965
+eyr:2020 hgt:157cm hcl:#a97842
+cid:271 iyr:2014 pid:326802068 ecl:#a16571
+
+byr:1965
+ecl:hzl eyr:2029 iyr:2010 hgt:157cm
+hcl:#7d3b0c pid:617693914
+
+pid:547158528 byr:1956
+ecl:gry hgt:189cm
+eyr:2029
+hcl:#602927
+iyr:2011
+
+hcl:#efcc98
+ecl:#1ecd0e pid:160cm eyr:2027 hgt:183cm byr:2027 iyr:1963
+
+hcl:#fffffd eyr:2021 iyr:2014 byr:1959 ecl:amb
+pid:102521439 hgt:190cm
+
+cid:112 hcl:#fffffd byr:2025
+pid:016603375
+eyr:1942 hgt:145
+iyr:1994
+
+ecl:xry
+pid:#5be367
+hgt:171cm cid:144 iyr:1946 eyr:2034 hcl:z byr:2022
+
+ecl:oth
+iyr:2014 hcl:#7d3b0c
+cid:316
+byr:1936 pid:088295340
+eyr:2029
+
+iyr:2019
+hgt:183cm ecl:brn hcl:#efcc98 pid:821190245 cid:251 eyr:2023
+byr:1993
+
+ecl:oth iyr:2018
+cid:131
+hcl:#524e2e byr:1981 hgt:183cm eyr:2022 pid:037981572
+
+hcl:#18171d byr:1934 eyr:2020 hgt:62in
+cid:64
+ecl:oth pid:343039563 iyr:2010
+
+hcl:#733820 pid:374199356
+hgt:169cm eyr:2026 byr:1994 iyr:2015 ecl:brn
+
+pid:394267581
+hcl:#a97842 iyr:2010 byr:1988
+hgt:185cm ecl:amb
+eyr:2022
+
+ecl:#be3b70 iyr:2025
+hcl:z
+eyr:2010
+byr:2023
+hgt:65 cid:220 pid:#d6af49
+
+eyr:2029
+hcl:#a97842 ecl:amb hgt:159cm
+cid:228 byr:1946 iyr:2012
+pid:805319194
+
+hcl:#c0946f eyr:2020 hgt:171cm ecl:oth iyr:2010 byr:1958 pid:276122958
+
+iyr:2017
+hcl:#da47a1 byr:2007 ecl:utc
+eyr:1945 cid:327 hgt:192cm pid:549704477
+
+iyr:1923 hgt:174in hcl:z byr:1974
+eyr:2026
+ecl:xry pid:158cm
+
+iyr:2022
+ecl:#ae10f9
+hgt:108
+eyr:2035 hcl:z byr:2019 pid:#1f4f7c
+
+eyr:2021 pid:959352732 cid:306 hgt:178cm ecl:amb
+iyr:2012
+byr:1953
+
+byr:2016 ecl:lzr eyr:2021 hcl:z iyr:1977 hgt:181cm cid:164
+
+cid:242 byr:2008 hcl:#866857 hgt:172cm iyr:2011
+ecl:blu eyr:2026 pid:350658669
+
+hgt:67in eyr:2030
+ecl:gry pid:156329184 iyr:2010 byr:1936 hcl:#efcc98
+
+cid:110 hgt:76in iyr:2018
+eyr:2029 pid:474249956 byr:2002 hcl:#866857
+ecl:oth
+
+iyr:2016 hgt:193cm eyr:2029
+byr:1934 hcl:#b6652a pid:901756621
+ecl:brn
+
+eyr:2017 hcl:z pid:#2f9848 iyr:2024
+hgt:170cm
+
+hgt:60in eyr:2026 byr:1922 hcl:#18171d iyr:2016
+pid:921038878
diff --git a/day-4/src/main.rs b/day-4/src/main.rs
new file mode 100644
index 0000000..f1f268e
--- /dev/null
+++ b/day-4/src/main.rs
@@ -0,0 +1,80 @@
+use std::collections::HashMap;
+use std::fs;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+ let input = fs::read_to_string("input")?;
+ let passports = parse_passports(&input)?;
+ println!("{}", validate_passports(&passports));
+
+ Ok(())
+}
+
+fn parse_passports(input: &str) -> Result<Vec<HashMap<&str, &str>>, &str> {
+ input
+ .split("\n\n")
+ .map(|passport| {
+ passport
+ .trim()
+ .split(|c| c == ' ' || c == '\n')
+ .map(|field| {
+ let split = field
+ .find(':')
+ .ok_or("Invalid passport entry; no separator")?;
+ let item = field.split_at(split);
+
+ let key = item.0;
+ let value = item
+ .1
+ .strip_prefix(":")
+ .expect("We've already checked the separator exists");
+
+ Ok((key, value))
+ })
+ .collect()
+ })
+ .collect()
+}
+
+fn validate_passports(passports: &Vec<HashMap<&str, &str>>) -> usize {
+ let required_fields = ["byr", "iyr", "eyr", "hgt", "hcl", "ecl", "pid"];
+
+ passports
+ .iter()
+ .filter(|passport| {
+ required_fields
+ .iter()
+ .all(|field| passport.contains_key(field))
+ })
+ .count()
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use indoc::indoc;
+
+ #[test]
+ fn test_simple() -> Result<(), String> {
+ let example = indoc!(
+ "ecl:gry pid:860033327 eyr:2020 hcl:#fffffd
+ byr:1937 iyr:2017 cid:147 hgt:183cm
+
+ iyr:2013 ecl:amb cid:350 eyr:2023 pid:028048884
+ hcl:#cfa07d byr:1929
+
+ hcl:#ae17e1 iyr:2013
+ eyr:2024
+ ecl:brn pid:760753108 byr:1931
+ hgt:179cm
+
+ hcl:#cfa07d eyr:2025 pid:166559648
+ iyr:2011 ecl:brn hgt:59in
+ "
+ );
+
+ let passports = parse_passports(example)?;
+ assert_eq!(validate_passports(&passports), 2);
+
+ Ok(())
+ }
+}
From 1eed1d2f85303f07440ff59c09f2e5cbbcf70d9c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Fri, 4 Dec 2020 21:34:49 +0000
Subject: [PATCH 2/7] Complete day 4.2
---
day-4/src/main.rs | 44 +++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 43 insertions(+), 1 deletion(-)
diff --git a/day-4/src/main.rs b/day-4/src/main.rs
index f1f268e..1e5dfd9 100644
--- a/day-4/src/main.rs
+++ b/day-4/src/main.rs
@@ -37,13 +37,55 @@ fn parse_passports(input: &str) -> Result<Vec<HashMap<&str, &str>>, &str> {
fn validate_passports(passports: &Vec<HashMap<&str, &str>>) -> usize {
let required_fields = ["byr", "iyr", "eyr", "hgt", "hcl", "ecl", "pid"];
+ let rules = [
+ |year: &str| match year.parse() {
+ Ok(1920..=2002) => true,
+ _ => false,
+ },
+ |year: &str| match year.parse() {
+ Ok(2010..=2020) => true,
+ _ => false,
+ },
+ |year: &str| match year.parse() {
+ Ok(2020..=2030) => true,
+ _ => false,
+ },
+ |height: &str| match height.split_at(height.chars().count() - 2) {
+ (height, "cm") => match height.parse() {
+ Ok(150..=193) => true,
+ _ => false,
+ },
+ (height, "in") => match height.parse() {
+ Ok(59..=76) => true,
+ _ => false,
+ },
+ _ => false,
+ },
+ |color: &str| match color.split_at(1) {
+ ("#", code) => code.chars().all(|a| char::is_ascii_hexdigit(&a)),
+ _ => false,
+ },
+ |color: &str| {
+ ["amb", "blu", "brn", "gry", "grn", "hzl", "oth"]
+ .iter()
+ .any(|c| c == &color)
+ },
+ |pid: &str| pid.chars().count() == 9 && pid.chars().all(char::is_numeric),
+ ];
passports
.iter()
.filter(|passport| {
required_fields
.iter()
- .all(|field| passport.contains_key(field))
+ .zip(rules.iter())
+ .all(|(field, rule)| {
+ if let Some(value) = passport.get(field) {
+ rule(value)
+ } else {
+ false
+ }
+ })
})
.count()
}
From cab4e2974dfb386b9c67912f9bf61ea0aea3f64d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Sun, 6 Dec 2020 21:00:40 +0000
Subject: [PATCH 3/7] Complete day 6
---
day-6/.gitignore | 1 +
day-6/Cargo.lock | 78 ++
day-6/Cargo.toml | 10 +
day-6/input | 2087 +++++++++++++++++++++++++++++++++++++++++++++
day-6/src/main.rs | 137 +++
5 files changed, 2313 insertions(+)
create mode 100644 day-6/.gitignore
create mode 100644 day-6/Cargo.lock
create mode 100644 day-6/Cargo.toml
create mode 100644 day-6/input
create mode 100644 day-6/src/main.rs
diff --git a/day-6/.gitignore b/day-6/.gitignore
new file mode 100644
index 0000000..b83d222
--- /dev/null
+++ b/day-6/.gitignore
@@ -0,0 +1 @@
+/target/
diff --git a/day-6/Cargo.lock b/day-6/Cargo.lock
new file mode 100644
index 0000000..e508f5f
--- /dev/null
+++ b/day-6/Cargo.lock
@@ -0,0 +1,78 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "day-6"
+version = "0.1.0"
+dependencies = [
+ "indoc",
+]
+
+[[package]]
+name = "indoc"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
+dependencies = [
+ "indoc-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unindent",
+]
+
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8833e20724c24de12bbaba5ad230ea61c3eafb05b881c7c9d3cfe8638b187e68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "unindent"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
diff --git a/day-6/Cargo.toml b/day-6/Cargo.toml
new file mode 100644
index 0000000..a253da5
--- /dev/null
+++ b/day-6/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day-6"
+version = "0.1.0"
+authors = ["Tristan Daniël Maat <tm@tlater.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+indoc = "0.3"
diff --git a/day-6/input b/day-6/input
new file mode 100644
index 0000000..9745c0b
--- /dev/null
+++ b/day-6/input
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+evxtomkyhrupwsnizac
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+
+whley
+dhyetlqf
+
+fqx
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+bfxz
+
+ipwvb
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+rcvnf
+chvr
+xjtvyez
+
+sdpuoewx
+wfqrphkdelosbvgyum
+pudzioesnw
+idatsupewo
+
+knfheau
+kanehuf
+unekfa
+klcsnemaufy
+
+yhuvigcrp
+rivgypcuh
+urphgvciy
+iyhrcvupg
+vuphryicg
+
+flozkyvhnwxr
+fvpsybhlwrz
+hzqvmfgrl
+irholckaveszf
+
+gypwufz
+agspwqmuyz
+yogwpzu
+
+c
+oc
diff --git a/day-6/src/main.rs b/day-6/src/main.rs
new file mode 100644
index 0000000..9035577
--- /dev/null
+++ b/day-6/src/main.rs
@@ -0,0 +1,137 @@
+use std::collections::HashSet;
+use std::fs;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+ let input = fs::read_to_string("input")?;
+
+ // Part 1
+ let groups = parse_groups(&input)?;
+ println!("{}", count_answers(&groups));
+
+ // Part 2
+ let groups = parse_group_individuals(&input)?;
+ println!("{}", count_individual_answers(&groups));
+
+ Ok(())
+}
+
+fn parse_groups(input: &str) -> Result<Vec<HashSet<char>>, String> {
+ input
+ .split("\n\n")
+ .map(|group| {
+ group
+ .chars()
+ .filter(|c| *c != '\n')
+ .map(|c| {
+ if c.is_alphabetic() {
+ Ok(c)
+ } else {
+ Err(format!("Invalid answer: {}", c))
+ }
+ })
+ .collect()
+ })
+ .collect()
+}
+
+fn count_answers(groups: &Vec<HashSet<char>>) -> usize {
+ groups.iter().map(|group| group.iter().count()).sum()
+}
+
+fn parse_group_individuals(input: &str) -> Result<Vec<Vec<HashSet<char>>>, String> {
+ input
+ .split("\n\n")
+ .map(|group| {
+ group
+ .lines()
+ .map(|individual| {
+ individual
+ .chars()
+ .map(|c| {
+ if c.is_alphabetic() {
+ Ok(c)
+ } else {
+ Err(format!("Invalid answer: {}", c))
+ }
+ })
+ .collect()
+ })
+ .collect()
+ })
+ .collect()
+}
+
+fn count_individual_answers(groups: &Vec<Vec<HashSet<char>>>) -> usize {
+ groups
+ .iter()
+ .map(|group| {
+ let mut iter = group.into_iter().cloned();
+ let first = iter.next().expect("Must have at least one element");
+
+ iter.fold(first, |cumulative, entry| {
+ cumulative.intersection(&entry).copied().collect()
+ })
+ .len()
+ })
+ .sum()
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use indoc::indoc;
+
+ #[test]
+ fn test_simple() -> Result<(), Box<dyn std::error::Error>> {
+ let input = indoc!(
+ "abc
+
+ a
+ b
+ c
+
+ ab
+ ac
+
+ a
+ a
+ a
+ a
+
+ b
+ "
+ );
+
+ let groups = parse_groups(input)?;
+ let counts = count_answers(&groups);
+ assert_eq!(counts, 11);
+ Ok(())
+ }
+
+ #[test]
+ fn test_simple2() -> Result<(), Box<dyn std::error::Error>> {
+ let input = indoc!(
+ "abc
+
+ a
+ b
+ c
+
+ ab
+ ac
+
+ a
+ a
+ a
+ a
+
+ b
+ "
+ );
+
+ let groups = parse_group_individuals(input)?;
+ let counts = count_individual_answers(&groups);
+ assert_eq!(counts, 6);
+ Ok(())
+ }
+}
From 0c61772aa026a1be39a2e1f284b27e14a077a94d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Thu, 3 Dec 2020 20:41:18 +0000
Subject: [PATCH 4/7] Complete day 3
---
day-3/.gitignore | 1 +
day-3/Cargo.lock | 78 +++++++++++
day-3/Cargo.toml | 10 ++
day-3/input | 323 ++++++++++++++++++++++++++++++++++++++++++++++
day-3/src/main.rs | 91 +++++++++++++
5 files changed, 503 insertions(+)
create mode 100644 day-3/.gitignore
create mode 100644 day-3/Cargo.lock
create mode 100644 day-3/Cargo.toml
create mode 100644 day-3/input
create mode 100644 day-3/src/main.rs
diff --git a/day-3/.gitignore b/day-3/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/day-3/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/day-3/Cargo.lock b/day-3/Cargo.lock
new file mode 100644
index 0000000..d0411da
--- /dev/null
+++ b/day-3/Cargo.lock
@@ -0,0 +1,78 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "day-3"
+version = "0.1.0"
+dependencies = [
+ "indoc",
+]
+
+[[package]]
+name = "indoc"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
+dependencies = [
+ "indoc-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unindent",
+]
+
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8833e20724c24de12bbaba5ad230ea61c3eafb05b881c7c9d3cfe8638b187e68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "unindent"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
diff --git a/day-3/Cargo.toml b/day-3/Cargo.toml
new file mode 100644
index 0000000..d861f49
--- /dev/null
+++ b/day-3/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day-3"
+version = "0.1.0"
+authors = ["Tristan Daniël Maat <tm@tlater.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+indoc = "0.3"
diff --git a/day-3/input b/day-3/input
new file mode 100644
index 0000000..b4223c3
--- /dev/null
+++ b/day-3/input
@@ -0,0 +1,323 @@
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diff --git a/day-3/src/main.rs b/day-3/src/main.rs
new file mode 100644
index 0000000..b5c2d85
--- /dev/null
+++ b/day-3/src/main.rs
@@ -0,0 +1,91 @@
+use std::fs;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+ let input = fs::read_to_string("input")?;
+ let slope = parse_slope(&input)?;
+
+ // Part 1
+ let encounters = count_encounters(&slope, (1, 3));
+ println!("{}", encounters);
+
+ // Part 2
+ let encounters: usize = [(1, 1), (1, 3), (1, 5), (1, 7), (2, 1)]
+ .iter()
+ .map(|angle| count_encounters(&slope, *angle))
+ .product();
+ println!("{}", encounters);
+
+ Ok(())
+}
+
+fn parse_slope(input: &str) -> Result<Vec<Vec<usize>>, String> {
+ input
+ .lines()
+ .map(|line| {
+ line.chars()
+ .map(|c| match c {
+ '.' => Ok(0),
+ '#' => Ok(1),
+ other => Err(format!("Invalid slope; contains character: {}", other)),
+ })
+ .collect()
+ })
+ .collect()
+}
+
+fn count_encounters(input: &Vec<Vec<usize>>, angle: (usize, usize)) -> usize {
+ input
+ .iter()
+ .enumerate()
+ .step_by(angle.0)
+ .map(|(i, row)| row[(i * angle.1 / angle.0) % row.len()])
+ .sum()
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use indoc::indoc;
+
+ #[test]
+ fn test_simple() -> Result<(), Box<dyn std::error::Error>> {
+ let example = indoc!(
+ "..##.......
+ #...#...#..
+ .#....#..#.
+ ..#.#...#.#
+ .#...##..#.
+ ..#.##.....
+ .#.#.#....#
+ .#........#
+ #.##...#...
+ #...##....#
+ .#..#...#.#"
+ );
+
+ let parsed = parse_slope(example)?;
+ assert_eq!(count_encounters(&parsed, (1, 3)), 7);
+ Ok(())
+ }
+
+ #[test]
+ fn test_simple2() -> Result<(), Box<dyn std::error::Error>> {
+ let example = indoc!(
+ "..##.......
+ #...#...#..
+ .#....#..#.
+ ..#.#...#.#
+ .#...##..#.
+ ..#.##.....
+ .#.#.#....#
+ .#........#
+ #.##...#...
+ #...##....#
+ .#..#...#.#"
+ );
+
+ let parsed = parse_slope(example)?;
+ assert_eq!(count_encounters(&parsed, (2, 1)), 2);
+ Ok(())
+ }
+}
From ab79670185461cc91747489b771f55c97108c99e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Sat, 5 Dec 2020 20:42:17 +0000
Subject: [PATCH 5/7] Complete day 5.1
---
day-5/.gitignore | 1 +
day-5/Cargo.lock | 78 +++++
day-5/Cargo.toml | 10 +
day-5/input | 815 ++++++++++++++++++++++++++++++++++++++++++++++
day-5/src/main.rs | 94 ++++++
5 files changed, 998 insertions(+)
create mode 100644 day-5/.gitignore
create mode 100644 day-5/Cargo.lock
create mode 100644 day-5/Cargo.toml
create mode 100644 day-5/input
create mode 100644 day-5/src/main.rs
diff --git a/day-5/.gitignore b/day-5/.gitignore
new file mode 100644
index 0000000..b83d222
--- /dev/null
+++ b/day-5/.gitignore
@@ -0,0 +1 @@
+/target/
diff --git a/day-5/Cargo.lock b/day-5/Cargo.lock
new file mode 100644
index 0000000..80f8ea6
--- /dev/null
+++ b/day-5/Cargo.lock
@@ -0,0 +1,78 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "day-5"
+version = "0.1.0"
+dependencies = [
+ "indoc",
+]
+
+[[package]]
+name = "indoc"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
+dependencies = [
+ "indoc-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unindent",
+]
+
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8833e20724c24de12bbaba5ad230ea61c3eafb05b881c7c9d3cfe8638b187e68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "unindent"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
diff --git a/day-5/Cargo.toml b/day-5/Cargo.toml
new file mode 100644
index 0000000..f161c8d
--- /dev/null
+++ b/day-5/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day-5"
+version = "0.1.0"
+authors = ["Tristan Daniël Maat <tm@tlater.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+indoc = "0.3"
diff --git a/day-5/input b/day-5/input
new file mode 100644
index 0000000..8699311
--- /dev/null
+++ b/day-5/input
@@ -0,0 +1,815 @@
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+BFFBFBFRRR
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+FBFFBBBLLR
+FBFBBFFLLR
+FBFFFBFRRR
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+BFBBFBBLRR
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+BFFBBFBLLL
+FBFFBBFLLR
+BBFBFFFLLR
+BBFFFFFRRL
+FBFBBFFRRR
+BFFFBFFLRL
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+BFFFFFFRLR
+FFBBBBFRRR
+BBFBFBFLRL
+FBBBFFBRRR
+FBFFBFFRRR
+FBBBBFBLLR
+BBBFFFBLLR
+FBFFBFBRRL
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+FFBBBBFLLL
+FFBBBFBRRR
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+FBBBFBBLLR
+FBBFBFFRRR
+BFBBFBFRLL
+FFFBBBBRRL
+FBFBFFBRRL
diff --git a/day-5/src/main.rs b/day-5/src/main.rs
new file mode 100644
index 0000000..62208ce
--- /dev/null
+++ b/day-5/src/main.rs
@@ -0,0 +1,94 @@
+use std::fs;
+
+type SeatCode = [char; 10];
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+ let input = fs::read_to_string("input")?;
+
+ // Part 1
+ let max_id: Result<usize, String> = input
+ .lines()
+ .map(|code| {
+ let (row, col) = find_seat(parse_seatcode(code)?);
+ Ok(row * 8 + col)
+ })
+ .max()
+ .ok_or("No seat codes set")?;
+
+ println!("{}", max_id?);
+
+ Ok(())
+}
+
+fn parse_seatcode(input: &str) -> Result<SeatCode, String> {
+ let mut output = ['0'; 10];
+
+ for (i, c) in input.chars().enumerate() {
+ if i > 10 {
+ Err(format!("Seat code too long: '{}'", input))?;
+ }
+
+ if !['F', 'B', 'L', 'R'].iter().any(|valid| &c != valid) {
+ Err(format!("Invalid character in seat code: '{}'", input))?;
+ }
+
+ output[i] = c;
+ }
+
+ Ok(output)
+}
+
+fn find_seat(code: SeatCode) -> (usize, usize) {
+ let midpoint = |(start, end): (usize, usize)| (start + end) / 2;
+ let binary_follow = |range: (usize, usize), direction: &char| match direction {
+ 'F' | 'L' => (range.0, midpoint(range)),
+ 'B' | 'R' => (midpoint(range) + 1, range.1),
+ _ => unreachable!("We already checked all characters are valid"),
+ };
+
+ let row = code[..7].iter().fold((0, 127), binary_follow).0;
+ let col = code[7..].iter().fold((0, 7), binary_follow).0;
+
+ (row, col)
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn test_simple() -> Result<(), Box<dyn std::error::Error>> {
+ let input = "FBFBBFFRLR";
+ let seat = find_seat(parse_seatcode(input)?);
+
+ assert_eq!(seat, (44, 5));
+ Ok(())
+ }
+
+ #[test]
+ fn test_simple2() -> Result<(), Box<dyn std::error::Error>> {
+ let input = "BFFFBBFRRR";
+ let seat = find_seat(parse_seatcode(input)?);
+
+ assert_eq!(seat, (70, 7));
+ Ok(())
+ }
+
+ #[test]
+ fn test_simple3() -> Result<(), Box<dyn std::error::Error>> {
+ let input = "FFFBBBFRRR";
+ let seat = find_seat(parse_seatcode(input)?);
+
+ assert_eq!(seat, (14, 7));
+ Ok(())
+ }
+
+ #[test]
+ fn test_simple4() -> Result<(), Box<dyn std::error::Error>> {
+ let input = "BBFFBBFRLL";
+ let seat = find_seat(parse_seatcode(input)?);
+
+ assert_eq!(seat, (102, 4));
+ Ok(())
+ }
+}
From 361285e23de7cb623ee225c7a6c07c835c17a4af Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Sat, 5 Dec 2020 21:11:41 +0000
Subject: [PATCH 6/7] Complete day 5.2
---
day-5/src/main.rs | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/day-5/src/main.rs b/day-5/src/main.rs
index 62208ce..81f9d27 100644
--- a/day-5/src/main.rs
+++ b/day-5/src/main.rs
@@ -17,6 +17,26 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
println!("{}", max_id?);
+ // Part 2
+ let mut ids = input
+ .lines()
+ .map(|code| {
+ let (row, col) = find_seat(parse_seatcode(code)?);
+ Ok(row * 8 + col)
+ })
+ .collect::<Result<Vec<usize>, String>>()?;
+ ids.sort();
+
+ let mut previous = ids[0];
+ for id in &ids[1..] {
+ if id - 1 != previous {
+ println!("{}", id);
+ break;
+ } else {
+ previous = *id;
+ }
+ }
+
Ok(())
}
From cc2bc308c3774b0f15f86d524fd92342f6827e40 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tristan=20Dani=C3=ABl=20Maat?= <tm@tlater.net>
Date: Sun, 6 Dec 2020 21:00:40 +0000
Subject: [PATCH 7/7] Complete day 6
---
day-6/.gitignore | 1 +
day-6/Cargo.lock | 78 ++
day-6/Cargo.toml | 10 +
day-6/input | 2087 +++++++++++++++++++++++++++++++++++++++++++++
day-6/src/main.rs | 137 +++
5 files changed, 2313 insertions(+)
create mode 100644 day-6/.gitignore
create mode 100644 day-6/Cargo.lock
create mode 100644 day-6/Cargo.toml
create mode 100644 day-6/input
create mode 100644 day-6/src/main.rs
diff --git a/day-6/.gitignore b/day-6/.gitignore
new file mode 100644
index 0000000..b83d222
--- /dev/null
+++ b/day-6/.gitignore
@@ -0,0 +1 @@
+/target/
diff --git a/day-6/Cargo.lock b/day-6/Cargo.lock
new file mode 100644
index 0000000..e508f5f
--- /dev/null
+++ b/day-6/Cargo.lock
@@ -0,0 +1,78 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "day-6"
+version = "0.1.0"
+dependencies = [
+ "indoc",
+]
+
+[[package]]
+name = "indoc"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
+dependencies = [
+ "indoc-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unindent",
+]
+
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.53"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8833e20724c24de12bbaba5ad230ea61c3eafb05b881c7c9d3cfe8638b187e68"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-xid",
+]
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+
+[[package]]
+name = "unindent"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
diff --git a/day-6/Cargo.toml b/day-6/Cargo.toml
new file mode 100644
index 0000000..a253da5
--- /dev/null
+++ b/day-6/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "day-6"
+version = "0.1.0"
+authors = ["Tristan Daniël Maat <tm@tlater.net>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+indoc = "0.3"
diff --git a/day-6/input b/day-6/input
new file mode 100644
index 0000000..9745c0b
--- /dev/null
+++ b/day-6/input
@@ -0,0 +1,2087 @@
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+c
+oc
diff --git a/day-6/src/main.rs b/day-6/src/main.rs
new file mode 100644
index 0000000..9035577
--- /dev/null
+++ b/day-6/src/main.rs
@@ -0,0 +1,137 @@
+use std::collections::HashSet;
+use std::fs;
+
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+ let input = fs::read_to_string("input")?;
+
+ // Part 1
+ let groups = parse_groups(&input)?;
+ println!("{}", count_answers(&groups));
+
+ // Part 2
+ let groups = parse_group_individuals(&input)?;
+ println!("{}", count_individual_answers(&groups));
+
+ Ok(())
+}
+
+fn parse_groups(input: &str) -> Result<Vec<HashSet<char>>, String> {
+ input
+ .split("\n\n")
+ .map(|group| {
+ group
+ .chars()
+ .filter(|c| *c != '\n')
+ .map(|c| {
+ if c.is_alphabetic() {
+ Ok(c)
+ } else {
+ Err(format!("Invalid answer: {}", c))
+ }
+ })
+ .collect()
+ })
+ .collect()
+}
+
+fn count_answers(groups: &Vec<HashSet<char>>) -> usize {
+ groups.iter().map(|group| group.iter().count()).sum()
+}
+
+fn parse_group_individuals(input: &str) -> Result<Vec<Vec<HashSet<char>>>, String> {
+ input
+ .split("\n\n")
+ .map(|group| {
+ group
+ .lines()
+ .map(|individual| {
+ individual
+ .chars()
+ .map(|c| {
+ if c.is_alphabetic() {
+ Ok(c)
+ } else {
+ Err(format!("Invalid answer: {}", c))
+ }
+ })
+ .collect()
+ })
+ .collect()
+ })
+ .collect()
+}
+
+fn count_individual_answers(groups: &Vec<Vec<HashSet<char>>>) -> usize {
+ groups
+ .iter()
+ .map(|group| {
+ let mut iter = group.into_iter().cloned();
+ let first = iter.next().expect("Must have at least one element");
+
+ iter.fold(first, |cumulative, entry| {
+ cumulative.intersection(&entry).copied().collect()
+ })
+ .len()
+ })
+ .sum()
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+ use indoc::indoc;
+
+ #[test]
+ fn test_simple() -> Result<(), Box<dyn std::error::Error>> {
+ let input = indoc!(
+ "abc
+
+ a
+ b
+ c
+
+ ab
+ ac
+
+ a
+ a
+ a
+ a
+
+ b
+ "
+ );
+
+ let groups = parse_groups(input)?;
+ let counts = count_answers(&groups);
+ assert_eq!(counts, 11);
+ Ok(())
+ }
+
+ #[test]
+ fn test_simple2() -> Result<(), Box<dyn std::error::Error>> {
+ let input = indoc!(
+ "abc
+
+ a
+ b
+ c
+
+ ab
+ ac
+
+ a
+ a
+ a
+ a
+
+ b
+ "
+ );
+
+ let groups = parse_group_individuals(input)?;
+ let counts = count_individual_answers(&groups);
+ assert_eq!(counts, 6);
+ Ok(())
+ }
+}