From 51ce80223a14f9e928abc2280f81dbd326208683 Mon Sep 17 00:00:00 2001 From: Alex Karle Date: Sat, 3 Dec 2022 12:54:33 -0500 Subject: [PATCH] Add 2020 solutions These were tracked in a different non-public repo. Might as well consolidate them and own up to the fact I wrote a good bit of Perl :) --- 2020/01/input | 200 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/01/sol1.pl | 18 ++++++++++++++++++ 2020/01/sol2.pl | 31 +++++++++++++++++++++++++++++++ 2020/02/input | 1000 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2020/02/sol1.pl | 15 +++++++++++++++ 2020/02/sol2.pl | 13 +++++++++++++ 2020/03/input | 323 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/03/sol1.pl | 16 ++++++++++++++++ 2020/03/sol2.pl | 40 ++++++++++++++++++++++++++++++++++++++++ 2020/04/input | 989 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2020/04/sol1.pl | 26 ++++++++++++++++++++++++++ 2020/04/sol2.pl | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/05/input | 965 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/05/sol1.pl | 42 ++++++++++++++++++++++++++++++++++++++++++ 2020/05/sol2.pl | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/06/input | 2232 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/06/sol1.pl | 23 +++++++++++++++++++++++ 2020/06/sol2.pl | 25 +++++++++++++++++++++++++ 2020/07/input | 594 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/07/sol1.pl | 43 +++++++++++++++++++++++++++++++++++++++++++ 2020/07/sol2.pl | 41 +++++++++++++++++++++++++++++++++++++++++ 2020/08/input | 625 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/08/sol1.pl | 33 +++++++++++++++++++++++++++++++++ 2020/08/sol2.pl | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/09/input | 1000 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2020/09/sol1.pl | 40 ++++++++++++++++++++++++++++++++++++++++ 2020/09/sol2.pl | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 2020/10/input | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/10/sol1.pl | 27 +++++++++++++++++++++++++++ 2020/10/sol2.pl | 36 ++++++++++++++++++++++++++++++++++++ 2020/11/input | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/11/sol1.pl | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2020/11/sol2.pl | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ README.md | 4 ++++ 34 files changed, 8980 insertions(+) create mode 100644 2020/01/input create mode 100755 2020/01/sol1.pl create mode 100755 2020/01/sol2.pl create mode 100644 2020/02/input create mode 100755 2020/02/sol1.pl create mode 100755 2020/02/sol2.pl create mode 100644 2020/03/input create mode 100755 2020/03/sol1.pl create mode 100755 2020/03/sol2.pl create mode 100644 2020/04/input create mode 100755 2020/04/sol1.pl create mode 100755 2020/04/sol2.pl create mode 100644 2020/05/input create mode 100755 2020/05/sol1.pl create mode 100755 2020/05/sol2.pl create mode 100644 2020/06/input create mode 100755 2020/06/sol1.pl create mode 100755 2020/06/sol2.pl create mode 100644 2020/07/input create mode 100755 2020/07/sol1.pl create mode 100755 2020/07/sol2.pl create mode 100644 2020/08/input create mode 100755 2020/08/sol1.pl create mode 100755 2020/08/sol2.pl create mode 100644 2020/09/input create mode 100755 2020/09/sol1.pl create mode 100755 2020/09/sol2.pl create mode 100644 2020/10/input create mode 100755 2020/10/sol1.pl create mode 100755 2020/10/sol2.pl create mode 100644 2020/11/input create mode 100755 2020/11/sol1.pl create mode 100755 2020/11/sol2.pl diff --git a/2020/01/input b/2020/01/input new file mode 100644 index 0000000..70e97cb --- /dev/null +++ b/2020/01/input @@ -0,0 +1,200 @@ +2004 +1671 +1678 +1304 +1242 +1882 +1605 +1034 +1883 +1589 +1881 +1546 +1713 +1218 +1982 +1395 +1277 +1417 +1497 +1499 +1847 +1989 +1172 +1684 +1243 +1843 +1661 +1662 +1421 +1790 +1344 +1458 +1074 +1809 +1990 +1369 +1386 +1736 +1972 +1634 +1229 +1123 +1870 +1595 +1934 +1399 +1732 +1545 +1208 +368 +1907 +1143 +443 +1929 +1965 +1872 +1738 +1967 +997 +1473 +1041 +1991 +1868 +1180 +1409 +1379 +1568 +1163 +1869 +1391 +1956 +1249 +1505 +351 +2001 +462 +1219 +1731 +1802 +1798 +1626 +1438 +1099 +1477 +1980 +1708 +1666 +1066 +1121 +1359 +1426 +1734 +1768 +1836 +1453 +923 +1660 +1878 +1522 +1024 +1429 +232 +1952 +1730 +1763 +1981 +1388 +1337 +1317 +1922 +1044 +1999 +1341 +1178 +1524 +1185 +1257 +1256 +1061 +1262 +1022 +1778 +1917 +1205 +1272 +1842 +1533 +1194 +1746 +1691 +1617 +1667 +1940 +1171 +1792 +1773 +1411 +1902 +1859 +1978 +1764 +1482 +1276 +735 +1716 +1915 +1675 +1126 +1830 +1227 +1299 +1535 +1700 +1658 +1771 +1823 +1055 +1602 +1590 +1983 +1885 +1735 +103 +1766 +14 +1486 +1939 +1525 +1916 +1279 +544 +1406 +1674 +1948 +1971 +1651 +1715 +1943 +1784 +2008 +1800 +1720 +1557 +1467 +1371 +1637 +1345 +1924 +1565 +1976 +1827 +1890 +1848 +1465 +1573 +1231 +1310 +1754 +1569 +1532 diff --git a/2020/01/sol1.pl b/2020/01/sol1.pl new file mode 100755 index 0000000..8f91ce6 --- /dev/null +++ b/2020/01/sol1.pl @@ -0,0 +1,18 @@ +#!/usr/bin/env perl +# idea: +# HAS to be O(N) because have to check each item in worst case +use strict; +use warnings; + +my %seen; +while (<>) { + chomp; + my $comp = 2020 - $_; + if (exists $seen{$comp}) { + print $_ * $comp . "\n"; + exit(0); + } else { + $seen{$_} = 1; + } +} +exit(1); diff --git a/2020/01/sol2.pl b/2020/01/sol2.pl new file mode 100755 index 0000000..bc3d61c --- /dev/null +++ b/2020/01/sol2.pl @@ -0,0 +1,31 @@ +#!/usr/bin/env perl +# idea: +# HAS to be O(N) because have to check each item in worst case +use strict; +use warnings; + +# first read the whole file in +my @all; + +open(my $fh, '<', 'input') or die "$!"; +for (<$fh>) { + chomp; + push @all, $_; +} + +for (my $i = 0; $i < scalar @all; $i++) { + my $cand = shift @all; + my $magic = 2020 - $cand; + my %seen; + for (@all) { + my $targ = $magic - $_; + if (exists $seen{$targ}) { + print $targ * $_ * $cand . "\n"; + exit(0); + } else { + $seen{$_} = 1; + } + } + push @all, $cand; +} +exit(1); diff --git a/2020/02/input b/2020/02/input new file mode 100644 index 0000000..713f7fd --- /dev/null +++ b/2020/02/input @@ -0,0 +1,1000 @@ +16-18 h: hhhhhhhhhhhhhhhhhh +17-18 d: ddddddddddddddddzn +15-18 c: cccccccccccccczcczc +3-9 r: pplzctdrc +4-14 d: lxdmddfddddddd +8-14 v: pvxlknfvplgktv +11-13 h: hphhhhhhhfhshhhhh +1-4 l: hbljb +1-2 x: wxqzlvt +1-5 g: dxggdggb +5-13 f: lfgdplfffxffswck +6-7 z: zzzzgzzzz +1-7 c: cccclcchrkctfhc +3-7 c: ccjccqzcc +15-16 x: rxxchpvgxxhxkxxw +3-5 h: hbxjg +3-7 q: sffnxxqvdfsnqlhqpq +8-11 h: hhhhhhhlhhh +7-8 w: bxwzdlwr +4-5 x: xxxxp +4-7 x: xxxxxxxx +2-18 l: lllllllllllllllllrll +6-10 n: nnnnnngnznn +12-13 c: ccccccccccchc +2-6 g: ggqngxgbggc +4-5 k: xdztx +4-9 m: txskmsnxvqjhlp +9-11 w: wwtxmsjwjwlw +12-16 g: cgggpkhggqkgrjcbx +9-11 s: sxsssmssvszs +17-18 c: cccccccccclccsccchcc +7-8 z: stpgzwlqm +9-19 q: qqqqqqqqqqqqqqqqqqqq +4-5 p: hpvtpfgwp +8-9 m: mmmmmmqmm +11-12 s: ssswsssssspts +2-4 j: jjdr +17-18 k: kvkkmlkkkkkkfklkkkkk +1-4 b: bbbwb +2-12 c: cccccccccccccc +14-15 l: llllllllllplllllllll +7-10 c: czcccsvnrbccc +11-12 d: nfmvdlxbfwzq +8-10 t: tvtttttzts +5-6 g: wggghg +11-16 d: ztfdkggclvzmvsxd +16-17 v: vvvvvvbvvpvxvvvhv +3-7 w: vrswklnfnjzkm +1-18 s: bsssssssssssssssshss +8-10 g: vdzldttzgm +19-20 n: nnnnnnnnnnnnnnnnnnrb +1-4 x: xxxqxxxxx +11-13 m: xmmxmmmmgmwmmm +4-5 j: pzfjjsjjmcm +1-7 j: jsjsmjj +7-8 j: nqkkljhbj +4-5 w: wmsbqhmwdjns +4-7 j: jbjjcjcf +2-7 f: jhsxldwf +3-4 f: vmff +5-7 z: fscmzjqs +2-10 g: ggtfwzpbkgqqlzwmbm +5-6 j: jjwbdjj +13-15 b: bbbbbbbbkbbbvbbbb +4-6 t: qdthtt +1-8 m: kmmmmmmvmmmmm +4-8 g: gbgqgtcglvgggcg +3-4 h: ghjn +3-8 b: mgbzbjvbkbpbd +11-17 k: kkkktskgkkkfgzkkk +1-6 f: ftnvfgtrlcs +3-13 r: hrrzrfrfpvdlrnrcrcs +3-8 l: gzljpllvl +3-11 h: hchjhhnhhnhvhhhhx +9-16 s: srssssssssskpldsqss +4-10 n: nnbnnnwnnwnnnxnn +3-4 n: nnnp +11-19 z: nznpcdnxkwznzlpvcwzj +4-7 w: wwwrwtwncwvwwwwx +3-4 s: bkgs +2-16 z: 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a/2020/02/sol1.pl b/2020/02/sol1.pl new file mode 100755 index 0000000..6d5177d --- /dev/null +++ b/2020/02/sol1.pl @@ -0,0 +1,15 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +open(my $fh, '<', 'input') or die "$!"; +my $n; +for my $line (<$fh>) { + chomp $line; + my ($min, $max, $goal, $pass) = $line =~ m{^(\d+)-(\d+) ([a-z]): ([a-z]+)}; + my $count = () = $pass =~ /$goal/g; + if ($count <= $max && $count >= $min) { + $n++; + } +} +print "$n\n"; diff --git a/2020/02/sol2.pl b/2020/02/sol2.pl new file mode 100755 index 0000000..0b4f328 --- /dev/null +++ b/2020/02/sol2.pl @@ -0,0 +1,13 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +open(my $fh, '<', 'input') or die "$!"; +my $n; +for my $line (<$fh>) { + my ($A, $B, $goal, $pass) = $line =~ m{^(\d+)-(\d+) ([a-z]): ([a-z]+)}; + if ((substr($pass, $A-1, 1) eq $goal) xor (substr($pass, $B-1, 1) eq $goal)) { + $n++; + } +} +print "$n\n"; diff --git a/2020/03/input b/2020/03/input new file mode 100644 index 0000000..d51ae19 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strict; +use warnings; + +open (my $fh, '<', 'input') or die "$!"; + +my $n; +my $i = 0; +for my $l (<$fh>) { + chomp $l; + if (substr($l, (3 * $i) % length($l), 1) eq '#') { + $n++; + } + $i++; +} +print "$n\n"; diff --git a/2020/03/sol2.pl b/2020/03/sol2.pl new file mode 100755 index 0000000..407e9f9 --- /dev/null +++ b/2020/03/sol2.pl @@ -0,0 +1,40 @@ +#!/usr/bin/env perl +use strict; +use warnings; + + +# Read it all in +open (my $fh, '<', 'input') or die "$!"; +my $i = 0; +my @M = (); +for my $l (<$fh>) { + chomp $l; + $M[$i] = [split('', $l)]; + $i++; +} + +# Do work on the matrix +my @slopes = ( + [1,1], + [3,1], + [5,1], + [7,1], + [1,2], +); + +my @N; +for (my $k = 0; $k < scalar @slopes; $k++) { + my ($r, $d) = @{$slopes[$k]}; + my $j = 0; + for (my $i = 0; $i < scalar @M; $i += $d) { + if ($M[$i]->[$j] eq '#') { + $N[$k]++; + } + $j = ($j + $r) % scalar @{$M[0]}; + } +} + +print join(",", @N) . "\n"; +my $total = 1; +$total *= $_ for @N; +print "$total\n"; diff --git a/2020/04/input b/2020/04/input new file mode 100644 index 0000000..15e78e0 --- /dev/null +++ b/2020/04/input @@ -0,0 +1,989 @@ +hgt:176cm +iyr:2013 +hcl:#fffffd ecl:amb +byr:2000 +eyr:2034 +cid:89 pid:934693255 + +hcl:#b5c3db ecl:grn hgt:155cm pid:#baec97 iyr:2017 +byr:1939 +eyr:2020 + +pid:526669252 eyr:1972 +hgt:152cm ecl:dne byr:1960 hcl:z iyr:2023 + +eyr:2028 hcl:#c0946f hgt:73in byr:1926 ecl:#473aaf iyr:2016 pid:565318180 + +pid:472686027 ecl:oth iyr:2019 +cid:277 byr:1940 +eyr:2030 hgt:170cm +hcl:#62e117 + +ecl:oth +iyr:2017 +pid:938461813 hcl:#733820 byr:1959 hgt:159cm eyr:2022 + +iyr:2011 eyr:2021 hcl:z +ecl:hzl byr:2002 pid:17324328 cid:140 +hgt:186cm + +byr:2022 pid:3164234967 iyr:1984 +hgt:76cm hcl:6b3837 +ecl:#fa362b +eyr:2037 + +hcl:z eyr:1945 +pid:9247286687 hgt:75cm +iyr:1934 cid:326 ecl:zzz +byr:2005 + +byr:2005 +ecl:lzr +eyr:2021 pid:152cm +cid:254 iyr:2020 hcl:z hgt:157cm + +iyr:2020 eyr:2020 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hcl:#341e13 eyr:2028 diff --git a/2020/04/sol1.pl b/2020/04/sol1.pl new file mode 100755 index 0000000..394f4aa --- /dev/null +++ b/2020/04/sol1.pl @@ -0,0 +1,26 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +open(my $fh, '<', 'input') or die "$!"; +# slurp +my $content; +{ + local $/; + $content = <$fh>; +} + +my @recs = split("\n\n", $content); +my $n; +my @required = qw(byr iyr eyr hgt hcl ecl pid); +REC: +for my $r (@recs) { + + my @fields = split(/\s+/, $r); + my %has = map { $_ => 1 } map { $_ =~ s/:.*//r } @fields; + for my $req (@required) { + next REC if !exists $has{$req}; + } + $n++; +} +print "$n\n"; diff --git a/2020/04/sol2.pl b/2020/04/sol2.pl new file mode 100755 index 0000000..bac0e06 --- /dev/null +++ b/2020/04/sol2.pl @@ -0,0 +1,62 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +open(my $fh, '<', 'input') or die "$!"; +# slurp +my $content; +{ + local $/; + $content = <$fh>; +} + +my @recs = split("\n\n", $content); +my $n = 0; +my %required = ( + byr => sub { $_[0] =~ /^\d\d\d\d$/ && $_[0] >= 1920 && $_[0] <= 2002 }, + iyr => sub { $_[0] =~ /^\d\d\d\d$/ && $_[0] >= 2010 && $_[0] <= 2020 }, + eyr => sub { $_[0] =~ /^\d\d\d\d$/ && $_[0] >= 2020 && $_[0] <= 2030 }, + hgt => sub { + my $v = $_[0]; + if ($v =~ /^(\d\d+)(cm|in)$/) { + if ($2 eq 'cm') { + return ($1 >= 150 && $1 <= 193); + } else { + return ($1 >= 59 && $1 <= 76); + } + } else { + return 0; + } + }, + hcl => sub { $_[0] =~ /^#[0-9a-f]{6}$/ }, + ecl => sub { $_[0] =~ /^(amb|blu|brn|gry|grn|hzl|oth)$/ }, + pid => sub { $_[0] =~ /^\d{9}$/ }, +); +REC: +for my $r (@recs) { + my @fields = split(/\s+/, $r); + + # parse the fields, validate as you go + my %has; + for my $f (@fields) { + my ($k, $v) = split(':', $f); + $has{$k} = $v; + if (!exists $required{$k}) { + next if $k eq 'cid'; #ok + + print "unknown key: $k\n"; + next REC; + } + if (!$required{$k}->($v)) { + # print "bad key/val: $k:$v\n"; + next REC; + } + } + + # check they all exist + for my $req (keys %required) { + next REC if !exists $has{$req}; + } + $n++; +} +print "$n\n"; diff --git a/2020/05/input b/2020/05/input new file mode 100644 index 0000000..86c40f6 --- /dev/null +++ b/2020/05/input @@ -0,0 +1,965 @@ +FBFBBBFRLR +FBBFBBBLLR +FFFFFBBRRL +BBBFFFBRRL +BFFBFBFLRL +FBFFBFFLLR +FBFBBBBRLR +FBFBFBFRLL +BFFBFFBRLR +FBBFFFBLRR +FBFBBBFRRR +BFFBBFBRLR +BFFBFBFRRL +FFFFBBBLRL +FBBFBFFRLL +BBFBBFBRLR +BFFFFBBLLR +FBFFFFFRRR +BFBFFBFLRR +BBFBFFBLLL +BFBFFFFLLR +FBBFBBBRLL +BBBBFFFRRL +FFBBBFFRLR +FFFBFFFRRL +FFFBBBBLRL +BFBBFBFRRL +BFFBBFBLLL +FBFBBFFLRL +BFFBBBBLRL +FFBBBFFLRL +FFBFBFFRRL +BBBFBFBRLR +FBFBBBBRLL +FBBBFBBRRR +FBFBFBFLLL +BBFFFFFLLR +FBFFFBBLRR +FFBFFFBLRR +BBBFBFFRLR +FFFFFFBRRL +BFBBFFFRRR +FBFFBFBRRR +BFFFBBFLRL +BBFBFFFRRR +BBFFFBBLRL +FFBBFFFLLL +FFFFFBBRLR +BFBFFFFRRL +FFBBFBBLRR +BFBBFBBLLR +FFBBBBFRRL +BBBFFFFLRL +BFBFFBFLRL +BFFFFBBLRL +BBBFBBBRLL +BFBBFBBLRR +BFBFFBBRRL +BBFBFFFLLL +FFFFBFFRRL +FFFFBBBRRR +FBBFBBFLRL +FBFFBFBRLR +FBFFBBBLLL +FBFBBBFLLR +FBBFBFBRLL 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strict; +use warnings; + +open (my $fh, '<', 'input') or die "$!"; + +my @items; +{ + local $/; + my $content = <$fh>; + @items = split("\n", $content); +} + +# HACK: don't have to compute ID for all of them--sort then compute ID +# +# BUT: we'll brute force it... +my @ids = map { id($_) } @items; +@ids = sort { $b <=> $a } @ids; +print $ids[0] . "\n"; + + +sub id { + my ($v) = @_; + my $id; + # row + for (my $i = 0; $i < 7; $i++) { + if (substr($v, $i, 1) eq 'B') { + $id += (2 ** (6 - $i)) * 8; + } else { + # F -- lower bound stays same, no addition + } + } + # col + for (my $i = 7; $i < 10; $i++) { + if (substr($v, $i, 1) eq 'R') { + $id += 2 ** (9 - $i); + } else { + # R + } + } + return $id; +} diff --git a/2020/05/sol2.pl b/2020/05/sol2.pl new file mode 100755 index 0000000..ba8c1f7 --- /dev/null +++ b/2020/05/sol2.pl @@ -0,0 +1,50 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +open (my $fh, '<', 'input') or die "$!"; + +my @items; +{ + local $/; + my $content = <$fh>; + @items = split("\n", $content); +} + +# HACK: don't have to compute ID for all of them--sort then compute ID +# +# BUT: we'll brute force it... +my @ids = map { id($_) } @items; +@ids = sort { $b <=> $a } @ids; + +# NOTE: not first or last +for (my $i = 1; $i < $#ids; $i++ ) { + if ($ids[$i-1] - $ids[$i] > 1) { + print $ids[$i] + 1 . "\n"; # 2 seat gap, print middle + exit(0); + } +} +exit(1); + + +sub id { + my ($v) = @_; + my $id; + # row + for (my $i = 0; $i < 7; $i++) { + if (substr($v, $i, 1) eq 'B') { + $id += (2 ** (6 - $i)) * 8; + } else { + # F -- lower bound stays same, no addition + } + } + # col + for (my $i = 7; $i < 10; $i++) { + if (substr($v, $i, 1) eq 'R') { + $id += 2 ** (9 - $i); + } else { + # R + } + } + return $id; +} diff --git a/2020/06/input b/2020/06/input new file mode 100644 index 0000000..814e97a --- /dev/null +++ b/2020/06/input @@ -0,0 +1,2232 @@ +bahmtpujokxdqlyi +efqksvrctzhmngw + +zfyhxoeuljmp +wrpjeymoxhfzul +ouxmhyjzpfle +zfouaelhxmynvptj +zlfojexmyhup + +wgfjlotnrx +xntjogrwfl +wrxgotnjfla + +qjtgski +bfysrculx +vwzdtpsq + +ahsp +saph +pihazus +hzptgacs +dpahksq + +ksvhn +kns + +urswemgxfn +uvgbwjli +yuczthgwp +kbuowg + +egnsbduqwtjpivxoyc +ugiwvsnjobyeqdtcxp +wqtvxseibgjupdcnoy +gecyvoniudwtbjpqsx + +jvtzcy +tzyecu +zvtmyc +ycktzm + +fvlrjwdnyq +nyfvwdjql +dqlyvfwjn +dlfyvxjwnq 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+tuhoavbpqnlydcfswmzk +dsfzkcmtnwovbhpjqlya +kjqdcohmpfvybtwsnlaz + +hertdw +wtdreh +hdtiuwesjrg + +xnydqrlau +xduclranyf +vyrxuldan +xyrusadln + +lvkhfogn +jtiyzaq +rxbpwuk + +kixeqphrutyca +dvjblmosz + +hjcgypifnmtebdwv +dtivyhmgnbeuwfcpj +cbjqeiwdmytvpfgn + +nuojfltd +swkqftlmjn +zarpivltcj +tyjbslq +hlbutqj + +oakrtfhsw +fswahocrkt +hosraktfw +rohwafkst + +insvwpjxgdfryeuo +kczq +zcb + +wa +iq +rq +jq + +gvke +daewubpn +ykzeh + +obuimdwklfzrsct +ruzkwoxadmfytl +tfdzjurxeqnlgokmvw +wtymkalfzderuo +ldrptzhaxmfouwk + +qsnk +ks +ks +szk +ksy + +ypdv +pihd + +vy +osxjmwklf +achbiqyntr +ned + +dcqgyiflm +gqcfn +fcqgwnh +qpgfkhbc + +qesdpalbnfjyrzhim +xocesfutkghymvb diff --git a/2020/06/sol1.pl b/2020/06/sol1.pl new file mode 100755 index 0000000..4a8d1cc --- /dev/null +++ b/2020/06/sol1.pl @@ -0,0 +1,23 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +my @groups; +open(my $fh, '<', 'input') or die "$!"; +{ + local $/; + my $content = <$fh>; + @groups = split("\n\n", $content); +} + +# reduce each group to a bag o words, then uniq, count +my $n; +for my $g (@groups) { + my %yes; + for my $m (split("\n", $g)) { + chomp($m); + $yes{$_} = 1 for split('', $m); + } + $n += keys %yes; +} +print "$n\n"; diff --git a/2020/06/sol2.pl b/2020/06/sol2.pl new file mode 100755 index 0000000..ff1c84c --- /dev/null +++ b/2020/06/sol2.pl @@ -0,0 +1,25 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +my @groups; +open(my $fh, '<', 'input') or die "$!"; +{ + local $/; + my $content = <$fh>; + @groups = split("\n\n", $content); +} + +# reduce each group to a bag o words, then uniq, count +my $n; +for my $g (@groups) { + my %yes; + my @members = split("\n", $g); + my $goal = scalar @members; + for my $m (@members) { + chomp($m); + $yes{$_} += 1 for split('', $m); + } + $n += scalar grep { $yes{$_} == $goal } keys %yes; +} +print "$n\n"; diff --git a/2020/07/input b/2020/07/input new file mode 100644 index 0000000..06e1233 --- /dev/null +++ b/2020/07/input @@ -0,0 +1,594 @@ +faded yellow bags contain 4 mirrored fuchsia bags, 4 dotted indigo bags, 3 faded orange bags, 5 plaid crimson bags. +striped olive bags contain 4 dark crimson bags. +dotted indigo bags contain 4 faded black bags, 4 clear cyan bags, 5 vibrant teal bags. +plaid crimson bags contain 3 shiny gold bags, 3 plaid gray bags. +muted fuchsia bags contain 3 shiny bronze bags. +plaid gray bags contain no other bags. +dull maroon bags contain 2 posh maroon bags, 3 wavy aqua bags, 2 faded white bags, 5 posh bronze bags. +dull red bags contain 3 striped silver bags, 2 dark tan bags. +muted lavender bags contain 3 striped red bags. +shiny lime bags contain 1 dotted olive bag. +dim violet bags contain 5 faded orange bags, 4 plaid green bags, 1 faded black bag. +wavy indigo bags contain 4 bright aqua bags, 2 dotted orange bags, 2 vibrant yellow bags. +vibrant purple bags contain 3 plaid indigo bags, 3 dark gold bags, 3 striped yellow bags, 3 light tomato bags. +plaid plum bags contain 1 faded silver bag. +striped teal bags contain 2 shiny crimson bags, 1 dull gray bag, 3 vibrant teal bags. +posh crimson bags contain 2 light violet bags. +pale maroon bags contain 2 wavy maroon bags, 1 dotted white bag. +drab cyan bags contain 4 dim violet bags, 5 pale tan bags, 3 faded black bags. +bright black bags contain 2 faded magenta bags. +dotted green bags contain 3 muted cyan bags. +striped chartreuse bags contain 5 posh silver bags, 5 wavy violet bags. +drab olive bags contain 5 dull blue bags. +drab green bags contain 2 vibrant violet bags, 2 dim violet bags, 2 light brown bags. +dark violet bags contain 5 drab brown bags, 4 dim chartreuse bags, 4 dark salmon bags. +faded orange bags contain 4 dull lavender bags. +dark fuchsia bags contain 2 clear tomato bags. +plaid gold bags contain 3 clear tomato bags. +muted red bags contain 1 muted green bag. +dark coral bags contain 5 muted white bags, 3 mirrored indigo bags, 1 shiny blue bag, 2 drab green bags. +dark chartreuse bags contain 2 bright teal bags. +dim silver bags contain 4 shiny white bags, 2 vibrant plum bags, 3 clear plum bags. +clear silver bags contain 1 dull gray bag. +pale gray bags contain no other bags. +plaid chartreuse bags contain 3 dull brown bags. +dotted crimson bags contain 3 pale olive bags, 2 pale black bags. +dark blue bags contain 1 light red bag, 5 striped turquoise bags. +dim white bags contain 5 bright white bags, 4 light magenta bags, 4 wavy chartreuse bags. +striped magenta bags contain 3 dull coral bags. +drab bronze bags contain 4 bright red bags. +light gray bags contain 1 mirrored coral bag. +wavy brown bags contain 4 clear lime bags, 1 plaid lavender bag, 1 faded lavender bag. +bright violet bags contain 5 clear indigo bags, 1 plaid indigo bag, 3 light beige bags. +drab tan bags contain 4 drab chartreuse bags. +shiny teal bags contain 1 bright tan bag. +dark silver bags contain 1 drab orange bag, 1 striped plum bag, 2 bright gold bags. +wavy turquoise bags contain 3 striped gray bags, 1 dotted lime bag, 4 pale plum bags, 2 vibrant orange bags. +wavy red bags contain 1 dim gold bag, 1 striped turquoise bag, 1 bright red bag. +mirrored yellow bags contain 5 faded cyan bags, 2 wavy green bags. +wavy blue bags contain 5 dark violet bags, 4 vibrant gray bags. +mirrored olive bags contain 5 faded orange bags, 2 posh aqua bags, 3 dotted silver bags, 2 striped plum bags. +faded crimson bags contain 3 striped maroon bags, 4 pale tomato bags. +vibrant olive bags contain 2 wavy yellow bags, 2 mirrored orange bags. +vibrant fuchsia bags contain 4 dim yellow bags, 3 drab tan bags. +dotted tan bags contain 2 faded fuchsia bags, 2 pale turquoise bags, 4 mirrored gray bags. +mirrored beige bags contain 1 mirrored olive bag. +faded turquoise bags contain 5 dull yellow bags, 5 clear gray bags, 5 muted lavender bags. +wavy violet bags contain 5 dotted gold bags, 5 dull cyan bags. +light tan bags contain 1 dull salmon bag, 1 dull bronze bag, 1 dull tan bag. +wavy tan bags contain 4 drab black bags. +muted silver bags contain 1 dark lavender bag, 5 pale tan bags, 2 clear violet bags, 3 drab coral bags. +dull blue bags contain 5 muted olive bags, 2 drab salmon bags, 3 clear red bags. +bright chartreuse bags contain 5 dim teal bags. +posh bronze bags contain 3 plaid black bags, 1 clear lavender bag, 3 dim chartreuse bags, 1 plaid gray bag. +striped orange bags contain 5 dull turquoise bags, 2 dotted olive bags, 5 bright coral bags, 1 mirrored aqua bag. +posh white bags contain 4 dim tomato bags, 5 light salmon bags. +faded cyan bags contain 2 plaid crimson bags, 5 muted green bags, 4 bright olive bags. +dark red bags contain 2 bright blue bags, 5 faded turquoise bags, 5 bright black bags. +pale magenta bags contain 4 drab chartreuse bags, 2 light tomato bags, 5 dull lavender bags. +posh orange bags contain 3 muted gray bags. +clear tan bags contain 2 dim crimson bags, 3 light olive bags. +dark green bags contain 4 muted maroon bags, 5 striped gold bags, 2 drab indigo bags, 2 dotted silver bags. +dim blue bags contain 5 wavy coral bags, 4 shiny chartreuse bags, 5 bright teal bags, 2 drab beige bags. +dim indigo bags contain 2 dull cyan bags, 3 dark maroon bags. +dotted gold bags contain 4 drab tomato bags, 1 light cyan bag, 2 pale tan bags, 2 light tomato bags. +faded gold bags contain 2 drab tan bags, 5 mirrored chartreuse bags, 2 striped gold bags, 3 bright silver bags. +muted olive bags contain 2 plaid black bags, 3 shiny gold bags, 4 vibrant crimson bags. +shiny gray bags contain 4 clear violet bags. +dim teal bags contain no other bags. +drab fuchsia bags contain 4 dim purple bags, 4 striped beige bags. +dark cyan bags contain 3 drab salmon bags. +clear lavender bags contain 2 dim olive bags, 4 mirrored gold bags, 4 striped plum bags. +posh lime bags contain 4 mirrored teal bags, 3 wavy chartreuse bags, 2 pale cyan bags, 5 pale indigo bags. +vibrant gold bags contain 5 dim chartreuse bags, 1 mirrored red bag, 3 dark lime bags, 4 shiny silver bags. +light crimson bags contain 3 muted lavender bags. +dark lime bags contain 1 faded chartreuse bag, 3 shiny crimson bags, 2 drab aqua bags. +dotted beige bags contain 1 faded white bag, 5 vibrant yellow bags. +dim chartreuse bags contain 4 striped lime bags, 2 faded black bags. +wavy bronze bags contain 5 muted cyan bags, 3 light yellow bags, 4 dotted purple bags. +striped plum bags contain 2 drab black bags, 1 faded silver bag. +posh chartreuse bags contain 4 faded blue bags, 2 vibrant crimson bags, 4 dotted purple bags, 4 posh tan bags. +vibrant yellow bags contain 4 dim tan bags, 1 mirrored fuchsia bag. +pale salmon bags contain 2 dull tan bags, 2 mirrored crimson bags, 1 drab chartreuse bag, 3 muted crimson bags. +drab gray bags contain 2 vibrant coral bags. +mirrored teal bags contain 5 vibrant violet bags. +striped maroon bags contain 2 dim violet bags, 3 dotted gold bags, 4 bright olive bags. +clear turquoise bags contain 4 plaid green bags. +vibrant white bags contain 5 dotted beige bags. +wavy chartreuse bags contain 1 faded orange bag, 4 shiny lavender bags. +mirrored gray bags contain 1 clear magenta bag. +bright aqua bags contain 3 mirrored gold bags, 5 shiny magenta bags, 1 shiny silver bag, 5 posh tan bags. +plaid violet bags contain 2 muted olive bags, 2 dotted chartreuse bags, 2 faded magenta bags, 1 drab cyan bag. +plaid olive bags contain 3 wavy lime bags, 2 faded cyan bags, 2 posh tan bags. +bright crimson bags contain 4 clear beige bags, 1 plaid teal bag, 3 shiny magenta bags. +shiny salmon bags contain 3 light silver bags, 3 faded orange bags, 3 dim tomato bags, 3 shiny gold bags. +mirrored red bags contain 5 shiny black bags. +shiny fuchsia bags contain 1 faded yellow bag, 1 plaid teal bag. +wavy tomato bags contain 4 light crimson bags, 3 clear blue bags. +clear lime bags contain 4 dark gray bags, 5 drab tomato bags. +light maroon bags contain 3 dark plum bags, 4 plaid crimson bags. +drab yellow bags contain 3 vibrant aqua bags, 5 pale red bags. +mirrored fuchsia bags contain 3 pale purple bags, 1 clear yellow bag, 1 wavy black bag, 4 pale gray bags. +clear black bags contain 1 plaid lavender bag, 4 muted indigo bags. +drab silver bags contain 1 faded green bag, 3 pale black bags. +clear teal bags contain 2 dotted silver bags. +plaid indigo bags contain 4 dotted purple bags. +striped indigo bags contain 1 mirrored indigo bag, 4 faded plum bags, 4 wavy crimson bags. +light salmon bags contain no other bags. +dull plum bags contain 4 plaid cyan bags. +muted tomato bags contain 4 dark violet bags. +mirrored orange bags contain no other bags. +striped tomato bags contain 5 dotted chartreuse bags, 2 dark white bags. +dotted magenta bags contain 2 wavy gold bags, 5 pale gray bags, 2 bright chartreuse bags. +vibrant blue bags contain 3 dotted cyan bags, 4 clear gold bags, 2 dark cyan bags. +mirrored crimson bags contain 1 dim salmon bag, 4 posh aqua bags. +shiny turquoise bags contain 2 striped blue bags, 2 light orange bags, 3 dim fuchsia bags, 2 dark olive bags. +muted gray bags contain 3 dotted yellow bags, 4 dim orange bags, 3 clear beige bags, 3 posh tan bags. +dim bronze bags contain 1 light magenta bag, 4 shiny purple bags, 1 light red bag. +dotted olive bags contain 2 dark crimson bags. +plaid bronze bags contain 4 bright silver bags, 1 faded lime bag, 3 striped lime bags, 3 drab coral bags. +posh blue bags contain 2 clear tomato bags. +plaid coral bags contain 4 clear turquoise bags, 1 plaid brown bag, 1 drab indigo bag. +faded magenta bags contain 2 wavy gray bags, 4 dark gold bags, 4 shiny white bags, 4 faded black bags. +light brown bags contain 3 striped red bags, 4 faded black bags, 5 vibrant violet bags. +dotted turquoise bags contain 2 mirrored orange bags. +pale bronze bags contain 2 mirrored silver bags, 1 faded cyan bag. +dark purple bags contain 1 muted lavender bag, 1 dull yellow bag, 5 vibrant tan bags, 1 dark gold bag. +plaid white bags contain 2 pale turquoise bags, 4 clear green bags. +wavy magenta bags contain 3 shiny blue bags, 1 dark yellow bag. +wavy gold bags contain 1 dotted indigo bag. +dull lavender bags contain 1 striped plum bag, 5 pale gray bags. +shiny silver bags contain 5 shiny lavender bags, 1 plaid crimson bag, 1 wavy black bag. +clear blue bags contain 2 plaid bronze bags, 1 shiny purple bag. +faded chartreuse bags contain 3 dull bronze bags. +pale blue bags contain 3 plaid yellow bags, 1 pale black bag, 4 clear magenta bags, 3 mirrored silver bags. +vibrant green bags contain 4 bright magenta bags, 4 dark black bags, 5 wavy chartreuse bags. +drab tomato bags contain 3 drab orange bags, 4 striped coral bags. +clear cyan bags contain 3 wavy chartreuse bags, 1 light salmon bag, 2 dim purple bags. +dim magenta bags contain 4 dim turquoise bags, 1 clear gray bag, 4 dim lime bags, 3 mirrored tomato bags. +wavy maroon bags contain 5 pale plum bags, 3 pale black bags, 3 striped red bags, 4 drab salmon bags. +posh gold bags contain 3 dim chartreuse bags, 1 faded blue bag, 4 mirrored teal bags. +muted aqua bags contain 2 faded maroon bags, 1 mirrored blue bag, 5 pale crimson bags. +muted orange bags contain 1 muted olive bag. +posh tan bags contain 4 muted lavender bags, 2 plaid crimson bags, 4 striped lime bags. +mirrored indigo bags contain 1 muted olive bag, 2 vibrant chartreuse bags, 4 light cyan bags. +wavy crimson bags contain 4 mirrored violet bags, 2 vibrant olive bags, 5 dull lavender bags, 1 drab cyan bag. +dim lavender bags contain 4 light salmon bags, 5 plaid tomato bags, 4 drab fuchsia bags. +dotted yellow bags contain 4 vibrant chartreuse bags. +light fuchsia bags contain 2 wavy red bags, 2 faded lime bags, 1 pale brown bag, 5 dotted green bags. +clear beige bags contain 5 drab chartreuse bags, 4 dark olive bags, 5 dim gold bags. +shiny gold bags contain 1 pale turquoise bag. +dim tomato bags contain no other bags. +plaid salmon bags contain 1 striped tan bag, 5 plaid purple bags, 1 mirrored crimson bag. +dotted lavender bags contain 3 striped teal bags, 1 vibrant gray bag. +light olive bags contain 3 posh tomato bags, 5 dim coral bags, 4 posh white bags, 2 dark turquoise bags. +striped silver bags contain 1 clear tomato bag, 1 drab cyan bag. +striped lavender bags contain 4 posh chartreuse bags, 5 faded coral bags. +faded beige bags contain 5 muted gold bags, 5 clear gold bags, 2 posh white bags. +drab indigo bags contain 1 pale magenta bag. +light blue bags contain 2 light chartreuse bags, 4 drab black bags, 2 dull bronze bags. +dull gold bags contain 5 dark blue bags, 2 bright green bags. +faded bronze bags contain 5 dim olive bags. +mirrored lime bags contain 5 pale crimson bags. +shiny coral bags contain 3 drab green bags, 3 posh white bags, 4 clear gray bags, 3 muted orange bags. +clear magenta bags contain 3 plaid olive bags, 4 plaid indigo bags, 1 dull blue bag. +wavy black bags contain 3 clear cyan bags, 3 dull bronze bags, 2 wavy chartreuse bags. +pale green bags contain 2 mirrored silver bags, 3 drab blue bags, 5 drab green bags, 4 pale tomato bags. +drab violet bags contain 1 drab orange bag, 1 vibrant indigo bag, 2 mirrored chartreuse bags. +light chartreuse bags contain 4 posh white bags, 5 dull bronze bags, 4 wavy coral bags. +dull black bags contain 4 muted red bags, 4 faded white bags, 5 plaid tomato bags, 2 dark blue bags. +dark gray bags contain 2 bright green bags, 5 light blue bags, 3 light tan bags, 2 shiny gold bags. +light turquoise bags contain 5 shiny coral bags, 3 dull brown bags, 3 striped tan bags, 4 striped silver bags. +mirrored magenta bags contain 3 vibrant silver bags, 4 vibrant crimson bags, 4 shiny coral bags, 1 shiny indigo bag. +dull lime bags contain 3 pale turquoise bags, 2 bright olive bags. +mirrored gold bags contain 1 faded silver bag, 4 pale gray bags. +clear chartreuse bags contain 4 dark gray bags, 1 pale lime bag, 1 plaid fuchsia bag. +dull indigo bags contain 4 posh silver bags. +dull yellow bags contain 3 wavy lavender bags, 3 muted maroon bags. +bright silver bags contain 2 wavy black bags, 1 dim coral bag. +clear indigo bags contain 1 posh black bag, 4 muted teal bags, 1 wavy maroon bag. +bright brown bags contain 3 shiny cyan bags, 5 clear green bags, 1 wavy magenta bag. +shiny crimson bags contain 1 faded black bag, 2 vibrant chartreuse bags. +striped white bags contain 4 light red bags, 3 dotted cyan bags. +pale tomato bags contain 1 posh white bag. +posh salmon bags contain 2 striped white bags, 5 clear purple bags, 5 bright yellow bags. +faded blue bags contain 5 drab cyan bags, 1 plaid crimson bag, 5 light crimson bags. +mirrored black bags contain 4 light tan bags, 3 faded blue bags. +bright red bags contain 3 pale magenta bags, 4 faded chartreuse bags. +drab lavender bags contain 5 dim red bags, 4 wavy black bags, 4 dull cyan bags, 5 clear gray bags. +light coral bags contain 4 dark lavender bags, 2 clear orange bags, 2 dull maroon bags. +bright plum bags contain 1 shiny blue bag, 5 striped salmon bags, 2 plaid olive bags. +faded tomato bags contain 4 pale turquoise bags. +wavy purple bags contain 1 light red bag. +striped crimson bags contain 2 shiny tan bags, 1 striped salmon bag, 5 dotted cyan bags. +posh olive bags contain 3 vibrant indigo bags. +plaid red bags contain 4 dotted violet bags, 1 plaid black bag, 4 light chartreuse bags. +pale aqua bags contain 3 plaid brown bags. +dotted silver bags contain 5 striped plum bags. +plaid magenta bags contain 4 clear lime bags, 1 muted chartreuse bag, 1 dark gray bag. +vibrant plum bags contain 3 clear yellow bags, 1 striped salmon bag. +faded lime bags contain 5 dull plum bags. +wavy lavender bags contain 3 dull bronze bags. +clear olive bags contain 5 pale bronze bags. +striped cyan bags contain 2 dotted gray bags. +drab black bags contain no other bags. +posh turquoise bags contain 1 clear teal bag. +plaid lime bags contain 5 pale gray bags, 5 shiny black bags, 2 faded tan bags, 4 clear lavender bags. +drab maroon bags contain 4 posh maroon bags, 3 drab lavender bags, 2 shiny lavender bags. +dull beige bags contain 3 mirrored coral bags, 2 faded fuchsia bags, 5 bright fuchsia bags. +dull bronze bags contain 2 mirrored olive bags. +striped violet bags contain 2 vibrant orange bags, 3 muted indigo bags, 5 light plum bags, 2 dark lavender bags. +striped fuchsia bags contain 3 striped salmon bags, 4 posh brown bags, 1 posh maroon bag. +light aqua bags contain 4 clear plum bags, 1 dull orange bag, 5 wavy magenta bags, 5 pale chartreuse bags. +wavy lime bags contain 1 mirrored teal bag, 1 posh tan bag, 5 clear teal bags, 4 plaid crimson bags. +plaid fuchsia bags contain 4 dark gold bags, 1 muted red bag, 4 light tomato bags. +muted white bags contain 5 plaid brown bags, 4 dotted plum bags, 3 dim crimson bags, 3 dim aqua bags. +pale white bags contain 4 mirrored chartreuse bags, 2 bright lavender bags, 5 striped teal bags. +vibrant aqua bags contain 3 faded green bags, 4 muted tomato bags, 2 clear lavender bags. +posh red bags contain 4 bright chartreuse bags, 1 clear red bag. +striped yellow bags contain 2 faded aqua bags, 3 light fuchsia bags, 5 dotted purple bags, 5 drab coral bags. +shiny lavender bags contain 2 faded orange bags. +dull coral bags contain 1 dull tan bag, 2 dull beige bags, 3 faded maroon bags, 1 wavy aqua bag. +faded violet bags contain 5 clear red bags. +dark turquoise bags contain 3 light chartreuse bags. +plaid silver bags contain 2 drab cyan bags, 1 dotted gray bag, 4 pale orange bags. +pale tan bags contain no other bags. +light white bags contain 2 shiny lime bags, 5 dull lavender bags, 4 plaid white bags. +dim beige bags contain 5 dotted silver bags, 5 dark gold bags, 1 muted turquoise bag, 1 pale olive bag. +muted crimson bags contain 2 faded silver bags, 2 dark olive bags. +shiny tan bags contain 2 dotted salmon bags. +dull magenta bags contain 3 drab black bags, 5 dim purple bags, 3 mirrored bronze bags. +dull white bags contain 1 clear teal bag, 2 faded violet bags, 4 dull bronze bags, 2 dotted gold bags. +clear green bags contain 3 pale crimson bags. +dark bronze bags contain 4 shiny cyan bags, 5 shiny white bags. +vibrant red bags contain 2 dark tomato bags, 3 muted crimson bags. +striped brown bags contain 4 pale yellow bags. +light bronze bags contain 5 drab silver bags, 5 wavy purple bags. +vibrant tomato bags contain 4 mirrored orange bags, 3 faded teal bags. +bright coral bags contain 4 clear maroon bags, 3 dim chartreuse bags. +shiny green bags contain 2 muted crimson bags, 5 pale tan bags, 3 drab black bags, 3 striped teal bags. +mirrored green bags contain 2 light black bags, 5 posh purple bags, 1 posh tan bag, 1 mirrored orange bag. +dull tan bags contain 3 bright tomato bags. +muted indigo bags contain 3 wavy coral bags. +shiny blue bags contain 1 wavy black bag, 2 dull maroon bags. +posh beige bags contain 5 dim crimson bags, 1 posh white bag, 2 mirrored teal bags, 2 vibrant chartreuse bags. +dim plum bags contain 2 vibrant chartreuse bags, 2 posh teal bags, 3 drab white bags. +vibrant teal bags contain 2 dim tomato bags, 2 dim teal bags, 4 drab chartreuse bags. +wavy olive bags contain 5 vibrant gold bags, 2 drab black bags, 2 shiny lime bags, 2 light coral bags. +faded white bags contain 4 posh cyan bags, 1 bright red bag, 2 pale olive bags, 3 plaid olive bags. +pale indigo bags contain 5 dim crimson bags, 1 dim tan bag, 5 plaid green bags. +pale fuchsia bags contain 4 light purple bags, 4 clear beige bags, 3 muted teal bags, 3 light blue bags. +faded gray bags contain 1 clear maroon bag, 2 dim fuchsia bags, 5 bright purple bags, 4 striped turquoise bags. +dark lavender bags contain 1 muted lavender bag, 2 vibrant crimson bags, 1 clear yellow bag. +light magenta bags contain 5 faded coral bags, 3 muted green bags, 4 mirrored fuchsia bags, 1 clear coral bag. +plaid cyan bags contain 1 muted crimson bag. +dim gold bags contain 3 clear cyan bags, 3 dim tomato bags, 3 shiny lavender bags, 2 vibrant teal bags. +bright tomato bags contain 1 striped red bag, 1 vibrant violet bag, 4 striped turquoise bags. +drab teal bags contain 2 posh turquoise bags, 1 shiny black bag. +pale olive bags contain 2 shiny gold bags, 3 posh bronze bags, 4 bright tomato bags, 2 bright olive bags. +pale brown bags contain 3 clear tomato bags. +dark yellow bags contain 3 light brown bags. +pale black bags contain 4 bright silver bags. +muted brown bags contain 2 light crimson bags, 4 drab chartreuse bags, 5 pale turquoise bags, 4 posh white bags. +wavy beige bags contain 2 posh maroon bags, 5 dark turquoise bags. +shiny olive bags contain 1 light salmon bag, 2 light crimson bags. +dotted teal bags contain 4 pale turquoise bags. +clear bronze bags contain 1 dotted tomato bag, 5 striped maroon bags, 5 shiny plum bags, 4 clear lime bags. +dim lime bags contain 3 dim lavender bags. +shiny aqua bags contain 2 clear plum bags, 1 plaid lavender bag, 2 faded aqua bags, 1 dim purple bag. +vibrant lime bags contain 4 dotted plum bags, 2 muted gray bags, 1 posh beige bag. +muted beige bags contain 1 mirrored lavender bag, 4 muted plum bags. +wavy yellow bags contain 4 posh cyan bags, 5 dim gold bags, 3 vibrant violet bags. +bright purple bags contain 1 bright chartreuse bag, 5 posh violet bags, 2 pale purple bags. +vibrant violet bags contain 2 wavy coral bags, 2 pale gray bags. +faded indigo bags contain 5 muted tomato bags, 2 dull tomato bags. +mirrored brown bags contain 1 shiny white bag, 4 dotted lavender bags, 3 striped cyan bags, 5 clear crimson bags. +bright beige bags contain 2 bright salmon bags. +bright gold bags contain 4 plaid crimson bags. +drab gold bags contain 5 pale tan bags. +bright orange bags contain 1 vibrant gold bag. +shiny brown bags contain 4 plaid lime bags, 4 dull gray bags, 1 pale tomato bag. +striped beige bags contain 1 clear yellow bag, 1 pale magenta bag, 4 dull bronze bags, 5 bright fuchsia bags. +clear brown bags contain 2 bright salmon bags, 2 vibrant turquoise bags. +muted turquoise bags contain 5 dim crimson bags, 1 drab chartreuse bag. +dark crimson bags contain 5 bright tomato bags. +clear yellow bags contain 2 dim olive bags. +bright lime bags contain 5 faded gray bags, 4 dull gold bags, 3 dark salmon bags, 4 posh lime bags. +muted coral bags contain 3 posh bronze bags, 3 striped gold bags. +dark salmon bags contain 2 vibrant indigo bags, 5 posh coral bags, 3 faded silver bags. +vibrant orange bags contain 4 dark turquoise bags, 2 vibrant lime bags. +pale violet bags contain 1 shiny brown bag, 2 dim plum bags, 3 dull crimson bags, 3 bright orange bags. +shiny purple bags contain 1 vibrant lavender bag, 1 dotted yellow bag. +drab orange bags contain 3 faded aqua bags. +posh brown bags contain 3 pale magenta bags, 4 faded orange bags, 1 drab chartreuse bag. +shiny bronze bags contain 3 light magenta bags, 3 drab indigo bags, 5 vibrant yellow bags. +muted teal bags contain 3 dim olive bags. +bright turquoise bags contain 3 bright chartreuse bags, 4 mirrored tomato bags. +muted chartreuse bags contain 4 faded gray bags, 1 dull salmon bag, 3 clear beige bags. +clear white bags contain 3 muted maroon bags. +posh violet bags contain 4 shiny white bags, 1 dull orange bag. +dotted brown bags contain 4 muted aqua bags. +mirrored plum bags contain 5 clear plum bags, 4 faded tomato bags. +drab crimson bags contain 1 pale white bag, 4 dotted maroon bags, 2 drab beige bags, 5 drab tan bags. +plaid black bags contain 1 light salmon bag, 3 mirrored orange bags, 2 dim purple bags. +dim orange bags contain 4 wavy black bags, 1 clear red bag. +faded plum bags contain 1 posh violet bag, 1 pale silver bag, 4 muted magenta bags. +vibrant salmon bags contain 2 dotted red bags, 1 dull maroon bag, 1 plaid tomato bag. +muted cyan bags contain 5 posh aqua bags, 2 faded silver bags, 2 striped red bags, 4 dim tomato bags. +muted salmon bags contain 5 muted teal bags, 3 striped cyan bags. +dim cyan bags contain 5 drab brown bags, 4 muted red bags, 1 wavy coral bag. +drab blue bags contain 4 faded aqua bags, 2 pale gray bags. +dotted lime bags contain 3 light olive bags, 2 light tomato bags, 5 dull gold bags, 2 dotted gold bags. +muted violet bags contain 4 wavy coral bags, 4 pale crimson bags, 1 dim coral bag, 2 mirrored coral bags. +vibrant maroon bags contain 5 wavy aqua bags, 4 muted orange bags, 3 dull tomato bags. +light tomato bags contain 3 dim tomato bags, 1 dim purple bag, 2 plaid gray bags, 3 striped red bags. +dotted violet bags contain 3 muted green bags, 2 faded silver bags. +mirrored coral bags contain 5 drab black bags, 2 vibrant crimson bags, 2 mirrored gold bags. +muted black bags contain 3 mirrored plum bags, 2 bright olive bags. +faded olive bags contain 1 vibrant orange bag, 3 faded gray bags, 3 shiny green bags, 2 muted lavender bags. +clear gold bags contain 4 dim purple bags. +striped lime bags contain 2 pale gray bags, 5 light brown bags, 5 vibrant violet bags, 4 bright tomato bags. +drab coral bags contain 2 pale tan bags, 5 striped teal bags, 1 drab indigo bag. +dotted purple bags contain 2 faded chartreuse bags, 3 clear beige bags, 4 striped turquoise bags. +light gold bags contain 2 dark gold bags, 5 striped salmon bags. +faded teal bags contain 5 plaid black bags, 5 dotted crimson bags, 3 mirrored magenta bags. +dull silver bags contain 5 bright yellow bags, 4 drab aqua bags, 4 shiny indigo bags. +shiny magenta bags contain 5 pale purple bags. +dull salmon bags contain 2 shiny black bags, 1 bright tomato bag. +posh fuchsia bags contain 1 pale teal bag, 1 clear orange bag. +mirrored lavender bags contain 2 posh brown bags, 3 light tomato bags, 5 plaid aqua bags, 2 vibrant olive bags. +posh tomato bags contain 2 drab blue bags. +faded maroon bags contain 2 dull beige bags, 2 dark gray bags. +dotted tomato bags contain 4 mirrored olive bags, 4 dull gold bags, 2 dotted silver bags, 4 wavy maroon bags. +muted bronze bags contain 2 dim olive bags, 2 posh lime bags, 3 drab coral bags, 5 wavy silver bags. +wavy aqua bags contain 2 striped lime bags, 4 wavy lime bags, 2 dim tan bags, 4 faded cyan bags. +dull violet bags contain 4 bright gold bags, 2 dim coral bags. +posh gray bags contain 2 dull bronze bags, 3 faded blue bags, 4 posh silver bags. +striped gold bags contain 4 wavy lavender bags, 2 muted gray bags, 3 wavy yellow bags. +vibrant black bags contain 3 shiny silver bags, 1 faded yellow bag. +dull teal bags contain 4 light blue bags, 3 posh lavender bags. +muted green bags contain 4 vibrant violet bags. +plaid green bags contain 3 dim purple bags, 4 dim teal bags, 1 muted cyan bag. +plaid blue bags contain 2 light purple bags, 4 dim gold bags, 5 pale black bags, 5 dim lavender bags. +vibrant turquoise bags contain 5 drab orange bags, 4 dark gold bags. +muted plum bags contain 3 dull aqua bags, 1 wavy lime bag, 3 dark green bags. +bright fuchsia bags contain 5 wavy gray bags, 1 dim teal bag, 5 muted cyan bags. +clear violet bags contain 1 bright salmon bag. +dotted chartreuse bags contain 4 pale plum bags, 2 bright purple bags. +vibrant gray bags contain 4 dark turquoise bags, 5 faded gold bags, 3 light olive bags. +dark tan bags contain 2 light olive bags, 1 vibrant fuchsia bag, 4 vibrant blue bags. +mirrored violet bags contain 2 muted gray bags. +mirrored maroon bags contain 5 mirrored coral bags, 2 faded lime bags, 3 dark gray bags. +dotted black bags contain 1 clear violet bag, 2 wavy chartreuse bags, 3 faded silver bags, 2 plaid gray bags. +shiny maroon bags contain 3 wavy turquoise bags, 2 dim purple bags, 1 shiny silver bag, 2 dim cyan bags. +dull cyan bags contain 3 mirrored olive bags. +drab brown bags contain 4 striped lime bags, 2 bright aqua bags. +dim crimson bags contain 2 drab black bags, 2 vibrant teal bags. +dim brown bags contain 2 mirrored beige bags. +vibrant silver bags contain 1 dark gold bag, 4 vibrant indigo bags, 5 dim red bags, 3 light blue bags. +dull olive bags contain 2 clear red bags, 1 vibrant plum bag. +faded purple bags contain 5 faded olive bags. +pale yellow bags contain 3 vibrant teal bags, 3 shiny violet bags, 2 dull yellow bags. +posh black bags contain 4 clear beige bags, 4 striped salmon bags, 4 wavy lavender bags. +dotted cyan bags contain 5 shiny crimson bags, 5 dark lavender bags, 5 faded green bags, 3 dull lime bags. +mirrored silver bags contain 4 light lime bags, 1 posh tomato bag. +pale gold bags contain 2 striped teal bags, 3 wavy chartreuse bags, 2 plaid tomato bags. +dotted white bags contain 2 muted purple bags, 2 posh white bags, 3 faded plum bags. +mirrored tan bags contain 2 clear bronze bags, 2 clear orange bags, 5 striped gray bags. +plaid beige bags contain 4 drab turquoise bags. +faded red bags contain 3 vibrant yellow bags, 3 pale brown bags, 4 dim beige bags, 5 wavy chartreuse bags. +pale coral bags contain 3 clear coral bags. +dull orange bags contain 5 wavy chartreuse bags, 5 plaid cyan bags. +dull brown bags contain 5 plaid olive bags, 3 faded chartreuse bags, 3 mirrored crimson bags. +mirrored aqua bags contain 5 faded green bags. +vibrant tan bags contain 1 dark turquoise bag, 4 plaid lime bags. +faded fuchsia bags contain 4 clear gray bags, 4 faded silver bags. +dim purple bags contain 5 dull lavender bags, 4 faded black bags, 1 muted cyan bag. +posh purple bags contain 1 wavy turquoise bag, 1 drab cyan bag, 2 dull coral bags, 4 posh yellow bags. +drab turquoise bags contain 3 dull black bags, 5 dotted bronze bags. +shiny orange bags contain 5 plaid crimson bags, 4 dotted coral bags. +plaid orange bags contain 3 wavy gray bags, 5 plaid crimson bags, 2 striped plum bags, 5 pale beige bags. +vibrant bronze bags contain 1 posh turquoise bag, 3 plaid turquoise bags, 1 dotted crimson bag. +clear tomato bags contain 5 mirrored fuchsia bags. +wavy coral bags contain 2 mirrored orange bags. +posh coral bags contain 5 dotted salmon bags. +bright tan bags contain 4 drab gray bags, 4 vibrant plum bags. +dotted gray bags contain 1 dull lime bag, 4 dotted tomato bags, 4 faded gold bags. +pale red bags contain 2 mirrored olive bags, 1 faded blue bag, 1 dark crimson bag, 3 striped teal bags. +striped aqua bags contain 2 drab black bags, 5 dull bronze bags, 3 pale purple bags, 4 faded silver bags. +plaid purple bags contain 3 bright salmon bags, 2 dim beige bags, 3 faded red bags. +drab purple bags contain 4 dotted black bags, 2 shiny black bags, 1 light plum bag, 1 dotted gold bag. +muted purple bags contain 3 pale crimson bags. +posh silver bags contain 4 bright gold bags, 1 dim coral bag, 2 drab chartreuse bags, 1 dim chartreuse bag. +dark black bags contain 1 bright green bag, 5 plaid cyan bags, 4 dotted purple bags. +striped coral bags contain 3 shiny lavender bags. +shiny yellow bags contain 4 dim tomato bags, 1 drab white bag. +bright magenta bags contain 2 muted silver bags, 3 dull bronze bags, 1 faded blue bag. +light black bags contain 4 posh silver bags. +pale purple bags contain 5 dull lavender bags, 1 mirrored orange bag. +striped salmon bags contain 3 faded chartreuse bags, 2 posh white bags, 1 striped lime bag, 3 drab cyan bags. +dull fuchsia bags contain 2 plaid tomato bags. +plaid maroon bags contain 5 dotted red bags, 2 vibrant magenta bags, 4 dotted purple bags. +posh yellow bags contain 2 wavy beige bags, 5 light yellow bags, 3 striped gray bags. +dull turquoise bags contain 1 drab lavender bag, 4 faded crimson bags, 2 drab purple bags. +wavy silver bags contain 5 dotted cyan bags, 2 faded blue bags, 2 faded aqua bags. +clear orange bags contain 5 posh silver bags, 1 vibrant teal bag, 1 pale tomato bag, 3 dull tomato bags. +drab chartreuse bags contain no other bags. +shiny black bags contain 5 dim teal bags, 1 faded silver bag, 2 posh beige bags, 1 bright olive bag. +pale teal bags contain 2 dull beige bags. +drab plum bags contain 5 pale beige bags, 2 wavy maroon bags. +vibrant lavender bags contain 4 wavy yellow bags. +dim turquoise bags contain 5 shiny crimson bags. +plaid tan bags contain 5 clear purple bags, 2 light indigo bags, 4 plaid cyan bags. +pale silver bags contain 1 pale green bag, 4 striped beige bags. +mirrored bronze bags contain 1 drab orange bag, 2 posh lavender bags, 2 muted gray bags. +plaid tomato bags contain 4 striped red bags, 3 bright olive bags. +bright indigo bags contain 4 dull tan bags. +light violet bags contain 5 faded magenta bags, 5 drab tomato bags. +clear aqua bags contain 1 plaid gray bag. +drab salmon bags contain 5 faded silver bags, 1 bright tomato bag, 1 light lime bag. +light teal bags contain 5 wavy brown bags, 2 muted indigo bags, 2 pale gold bags. +drab red bags contain 2 shiny chartreuse bags, 3 dim yellow bags, 3 vibrant teal bags, 3 mirrored silver bags. +bright white bags contain 5 dotted tan bags, 4 drab beige bags, 3 dim indigo bags, 2 dotted white bags. +dotted fuchsia bags contain 3 faded tomato bags, 1 dotted lavender bag. +dotted aqua bags contain 4 clear plum bags, 4 faded maroon bags, 1 posh bronze bag. +light purple bags contain 5 dotted cyan bags, 4 posh olive bags, 5 plaid fuchsia bags, 3 striped white bags. +shiny indigo bags contain 2 mirrored gold bags, 4 pale magenta bags, 5 shiny white bags, 4 posh tan bags. +pale turquoise bags contain 1 pale tan bag, 4 striped red bags, 1 bright olive bag. +plaid aqua bags contain 3 plaid black bags, 3 dim crimson bags. +posh cyan bags contain 3 dim tomato bags, 4 pale crimson bags, 4 shiny gold bags. +mirrored white bags contain 2 faded cyan bags. +shiny chartreuse bags contain 3 muted maroon bags, 2 dotted teal bags. +dim green bags contain 4 light salmon bags, 1 muted crimson bag, 2 striped beige bags. +striped blue bags contain 4 dark bronze bags, 5 faded plum bags, 3 bright white bags. +drab lime bags contain 4 dull tomato bags. +clear purple bags contain 2 drab chartreuse bags, 4 clear green bags. +dotted blue bags contain 5 dim purple bags, 3 dull brown bags. +vibrant cyan bags contain 2 drab indigo bags, 4 faded chartreuse bags. +light beige bags contain 3 dark orange bags, 3 vibrant cyan bags. +light lavender bags contain 1 muted cyan bag, 5 faded tan bags. +dim fuchsia bags contain 2 pale salmon bags. +mirrored purple bags contain 2 clear red bags. +faded brown bags contain 1 clear tan bag, 4 faded crimson bags. +muted magenta bags contain 5 pale tomato bags, 3 muted maroon bags. +pale beige bags contain 5 dark gold bags, 1 dull beige bag. +vibrant brown bags contain 2 striped gold bags, 1 bright gold bag. +clear coral bags contain 4 pale crimson bags, 1 dark teal bag, 4 mirrored coral bags, 4 striped gold bags. +striped tan bags contain 4 dim violet bags. +pale chartreuse bags contain 2 vibrant blue bags, 5 dark turquoise bags, 2 faded olive bags. +posh plum bags contain 1 plaid aqua bag. +striped purple bags contain 3 shiny tomato bags, 5 posh purple bags. +dark gold bags contain 5 vibrant crimson bags, 2 light tomato bags, 3 light salmon bags, 3 muted brown bags. +shiny cyan bags contain 1 vibrant crimson bag, 5 drab indigo bags. +bright yellow bags contain 3 plaid indigo bags. +bright blue bags contain 5 mirrored magenta bags. +dotted salmon bags contain 5 vibrant crimson bags, 2 posh chartreuse bags, 5 wavy gray bags, 4 pale turquoise bags. +dim olive bags contain 1 clear cyan bag. +striped turquoise bags contain 5 faded silver bags, 3 pale tan bags, 5 faded orange bags, 2 bright olive bags. +vibrant beige bags contain 3 faded yellow bags, 3 bright green bags, 3 faded bronze bags, 4 drab fuchsia bags. +clear maroon bags contain 1 vibrant indigo bag. +vibrant coral bags contain 2 mirrored tomato bags, 5 dull bronze bags, 1 vibrant teal bag, 3 pale salmon bags. +dotted orange bags contain 2 plaid green bags, 4 striped violet bags, 4 bright chartreuse bags, 4 dotted plum bags. +dull tomato bags contain 2 vibrant crimson bags. +wavy teal bags contain 1 bright orange bag. +dark teal bags contain 4 dim tan bags, 4 striped gray bags, 4 dim red bags, 4 plaid bronze bags. +vibrant indigo bags contain 3 drab coral bags, 2 plaid green bags, 4 shiny gold bags, 3 wavy coral bags. +striped red bags contain 4 faded silver bags, 4 light salmon bags, 3 drab black bags. +drab aqua bags contain 5 faded black bags. +wavy plum bags contain 4 posh blue bags, 5 striped olive bags, 3 shiny violet bags, 4 bright silver bags. +posh lavender bags contain 3 wavy silver bags, 1 drab lavender bag. +dotted red bags contain 5 drab bronze bags, 5 plaid gray bags. +dark orange bags contain 4 mirrored blue bags, 1 drab black bag. +bright lavender bags contain 4 shiny magenta bags, 2 bright tomato bags, 3 dim salmon bags, 4 dim purple bags. +mirrored chartreuse bags contain 2 wavy black bags, 4 dull cyan bags, 5 striped coral bags. +mirrored tomato bags contain 5 clear beige bags. +wavy fuchsia bags contain 2 muted silver bags, 2 shiny gold bags. +muted lime bags contain 2 striped turquoise bags, 3 dim tan bags. +shiny white bags contain 4 mirrored olive bags. +posh maroon bags contain 3 vibrant violet bags, 5 striped turquoise bags, 2 dull lavender bags, 4 faded orange bags. +faded aqua bags contain 2 faded orange bags, 2 pale magenta bags, 1 posh white bag. +mirrored blue bags contain 5 pale purple bags, 2 light red bags, 2 striped teal bags, 4 shiny crimson bags. +dotted plum bags contain 1 light chartreuse bag, 5 drab tan bags, 3 pale red bags. +muted tan bags contain 3 drab cyan bags, 2 posh olive bags, 1 dim tomato bag. +shiny tomato bags contain 3 mirrored cyan bags, 5 dim yellow bags. +pale lavender bags contain 2 dull beige bags. +pale orange bags contain 1 posh gold bag. +wavy green bags contain 4 posh bronze bags. +faded lavender bags contain 3 clear gold bags, 4 mirrored cyan bags, 4 faded silver bags, 5 posh chartreuse bags. +posh teal bags contain 1 shiny purple bag, 4 dotted violet bags, 1 dotted tomato bag, 5 dull indigo bags. +clear crimson bags contain 2 shiny lavender bags. +dim black bags contain 2 vibrant coral bags, 2 drab green bags. +dull crimson bags contain 3 vibrant orange bags, 2 drab salmon bags. +muted gold bags contain 3 posh chartreuse bags, 4 striped gold bags, 4 drab brown bags, 2 dim black bags. +dull chartreuse bags contain 3 clear fuchsia bags. +light orange bags contain 5 clear orange bags, 5 faded bronze bags, 3 clear crimson bags. +dark tomato bags contain 5 dotted chartreuse bags, 3 dull gray bags, 5 muted crimson bags. +dark brown bags contain 3 posh red bags. +faded green bags contain 1 dark white bag. +dark olive bags contain 4 vibrant teal bags, 3 pale magenta bags, 4 pale gray bags. +striped bronze bags contain 3 striped tan bags, 5 dark gray bags, 4 vibrant white bags. +striped black bags contain 1 striped turquoise bag, 1 vibrant olive bag, 1 striped salmon bag. +clear plum bags contain 4 wavy chartreuse bags, 1 pale bronze bag, 2 striped plum bags. +faded tan bags contain 2 muted cyan bags, 4 dim salmon bags, 3 vibrant crimson bags, 4 striped plum bags. +faded silver bags contain no other bags. +light silver bags contain 4 muted gray bags, 3 mirrored crimson bags, 3 dull tan bags, 2 drab indigo bags. +dim aqua bags contain 2 posh tomato bags, 2 muted coral bags, 5 wavy gray bags, 3 dull tan bags. +vibrant crimson bags contain 1 shiny lavender bag, 3 bright tomato bags. +dim maroon bags contain 4 light olive bags. +bright maroon bags contain 2 faded tan bags, 5 pale tomato bags, 5 dotted purple bags. +dim gray bags contain 1 muted gold bag, 4 shiny magenta bags, 2 wavy salmon bags, 2 posh violet bags. +dim coral bags contain 3 striped coral bags, 5 clear gold bags, 3 wavy chartreuse bags. +posh indigo bags contain 3 dull salmon bags. +striped green bags contain 3 vibrant crimson bags, 4 plaid plum bags, 4 muted brown bags. +dull purple bags contain 3 drab gold bags, 1 plaid gray bag, 4 striped silver bags. +light yellow bags contain 3 pale salmon bags, 5 dark cyan bags, 3 dull tomato bags, 3 mirrored silver bags. +shiny red bags contain 3 faded gold bags, 1 light salmon bag, 5 mirrored turquoise bags. +vibrant magenta bags contain 1 drab tomato bag, 5 plaid cyan bags. +plaid lavender bags contain 1 dull lavender bag, 5 vibrant black bags, 2 muted olive bags, 4 shiny lavender bags. +light cyan bags contain 1 bright silver bag. +dark plum bags contain 2 drab salmon bags, 3 dull violet bags, 3 posh lime bags. +dull green bags contain 4 bright gold bags, 2 posh gold bags, 2 striped plum bags. +wavy salmon bags contain 3 faded gray bags, 5 dotted cyan bags, 3 plaid maroon bags. +pale lime bags contain 1 shiny purple bag. +shiny plum bags contain 3 mirrored magenta bags, 4 clear violet bags, 5 dull tomato bags, 5 dotted violet bags. +dim red bags contain 2 posh white bags, 4 drab cyan bags, 1 dark yellow bag, 1 pale purple bag. +light red bags contain 3 dotted indigo bags, 4 bright tomato bags, 1 mirrored olive bag, 4 pale turquoise bags. +dim yellow bags contain 5 faded aqua bags, 2 shiny purple bags, 1 plaid bronze bag. +drab magenta bags contain 4 dotted coral bags, 3 plaid lime bags. +clear gray bags contain 5 plaid green bags, 3 pale purple bags. +plaid turquoise bags contain 4 mirrored crimson bags, 2 muted lavender bags, 3 light blue bags, 2 dull blue bags. +mirrored turquoise bags contain 5 muted magenta bags, 4 light red bags. +pale plum bags contain 3 clear beige bags, 5 striped plum bags, 4 striped lime bags, 2 striped teal bags. +vibrant chartreuse bags contain 2 drab chartreuse bags, 2 striped red bags, 4 dim teal bags. +striped gray bags contain 3 striped red bags, 1 drab green bag. +muted maroon bags contain 4 clear yellow bags, 1 dim tan bag, 3 vibrant cyan bags, 1 bright tomato bag. +posh aqua bags contain 3 faded silver bags, 5 pale tan bags, 2 striped red bags, 3 light salmon bags. +dotted bronze bags contain 4 striped gold bags, 5 dark lime bags, 2 pale magenta bags, 1 pale salmon bag. +dark aqua bags contain 4 dull salmon bags, 2 striped salmon bags, 5 clear turquoise bags. +plaid brown bags contain 4 posh silver bags. +bright cyan bags contain 2 posh yellow bags, 5 posh lavender bags, 4 shiny cyan bags. +dark indigo bags contain 5 pale turquoise bags, 4 light crimson bags, 2 dim orange bags. +muted yellow bags contain 3 light coral bags, 1 vibrant turquoise bag, 5 clear magenta bags, 2 pale olive bags. +clear fuchsia bags contain 2 posh silver bags, 1 striped yellow bag, 3 striped lime bags. +bright salmon bags contain 2 vibrant cyan bags. +dotted maroon bags contain 2 posh violet bags. +shiny violet bags contain 3 dim teal bags. +plaid teal bags contain 2 drab orange bags, 1 dim violet bag, 1 bright fuchsia bag. +faded salmon bags contain 5 drab orange bags, 3 clear indigo bags, 1 plaid cyan bag. +shiny beige bags contain 5 bright brown bags, 4 pale brown bags. +plaid yellow bags contain 3 vibrant crimson bags. +light indigo bags contain 4 vibrant cyan bags, 2 dotted purple bags. +dull aqua bags contain 5 pale tan bags. +posh green bags contain 2 light silver bags, 3 posh lime bags, 2 vibrant olive bags. +dark beige bags contain 3 dotted coral bags, 5 wavy chartreuse bags. +mirrored salmon bags contain 4 posh blue bags, 5 posh yellow bags, 4 posh fuchsia bags, 3 drab tomato bags. +pale crimson bags contain 3 dim tomato bags, 3 vibrant teal bags, 5 dotted silver bags. +wavy gray bags contain 1 dim olive bag, 4 plaid green bags. +bright olive bags contain 5 faded orange bags, 1 plaid black bag, 2 plaid gray bags, 3 faded silver bags. +light lime bags contain 5 dull lavender bags, 2 posh aqua bags, 4 dull aqua bags. +dim salmon bags contain 3 muted lavender bags, 1 light lime bag. +dark white bags contain 1 posh aqua bag, 3 wavy black bags. +posh magenta bags contain 5 striped silver bags, 3 wavy bronze bags, 3 faded beige bags. +mirrored cyan bags contain 5 light brown bags, 1 muted cyan bag, 4 posh silver bags. +dark magenta bags contain 2 muted indigo bags, 2 muted coral bags. +clear salmon bags contain 3 pale chartreuse bags. +dim tan bags contain 2 pale crimson bags. +bright gray bags contain 3 mirrored fuchsia bags. +bright green bags contain 5 plaid crimson bags, 3 striped turquoise bags. +faded black bags contain 1 striped red bag, 1 dim teal bag, 5 faded silver bags, 3 striped plum bags. +wavy orange bags contain 1 dark white bag. +wavy cyan bags contain 5 light olive bags. +muted blue bags contain 5 wavy maroon bags, 1 light tomato bag. +light green bags contain 1 shiny teal bag, 5 bright lime bags, 4 drab white bags, 5 posh aqua bags. +drab white bags contain 4 posh silver bags, 4 mirrored crimson bags. +bright teal bags contain 5 dotted purple bags, 1 faded yellow bag, 4 shiny coral bags. +light plum bags contain 3 pale cyan bags, 5 faded tan bags. +faded coral bags contain 4 dull gray bags. +dotted coral bags contain 2 posh bronze bags, 5 posh aqua bags, 2 mirrored violet bags. +pale cyan bags contain 2 mirrored orange bags, 2 dim tomato bags. +drab beige bags contain 4 bright aqua bags, 2 mirrored tomato bags, 2 plaid turquoise bags, 1 wavy chartreuse bag. +dark maroon bags contain 1 dull gray bag, 2 mirrored olive bags, 1 light olive bag, 1 shiny fuchsia bag. +wavy white bags contain 4 dull lavender bags. +dull gray bags contain 5 plaid black bags, 3 light lime bags, 2 wavy chartreuse bags, 5 dim tomato bags. +clear red bags contain 5 light crimson bags, 3 faded chartreuse bags, 4 clear teal bags, 4 mirrored blue bags. +bright bronze bags contain 1 clear magenta bag, 2 clear gray bags, 2 dull coral bags, 5 vibrant gray bags. diff --git a/2020/07/sol1.pl b/2020/07/sol1.pl new file mode 100755 index 0000000..05ae8fc --- /dev/null +++ b/2020/07/sol1.pl @@ -0,0 +1,43 @@ +#!/usr/bin/env perl +# idea: +# this is a weighted DAG. The natural way the rules flow, I _want_ to make it +# so that the edges go from container->containee BUT, for the problem we want +# to solve, it makes much more sense to build the graph containee->[container] +# so that we can then do a quick walk of all possible containers +use strict; +use warnings; + + +# build the graph +my %h; +my %all; +open(my $fh, '<', 'input') or die "$!"; +for my $rule (<$fh>) { + my ($container, $containees) = $rule =~ /^(.*) bags contain (.*)\.$/; + $all{$container} = 1; + if ($containees eq 'no other bags') { + # skip! + next; + } + my @subs = map { s/\d+ (.*) bag(?:s)?/$1/r } split(', ', $containees); + $all{$_} = 1 for @subs; + $all{$container} = 1; + for my $s (@subs) { + push(@{$h{$s}}, $container); + } +} + +# walk the walk +my @q = @{$h{'shiny gold'}}; # direct containers +my %seen; +while (my $i = shift @q) { + next if $seen{$i}; + $seen{$i} = 1; + if (exists $h{$i}) { + # I suppose there might be some outer-only bags + push (@q, @{$h{$i}}); + } +} +printf "%d out of %d\n", scalar keys %seen, scalar keys %all; + +exit(0); diff --git a/2020/07/sol2.pl b/2020/07/sol2.pl new file mode 100755 index 0000000..d3548ca --- /dev/null +++ b/2020/07/sol2.pl @@ -0,0 +1,41 @@ +#!/usr/bin/env perl +# idea: +# this is a weighted DAG. This time, we go container->containee +use strict; +use warnings; + + +# build the graph +my %h; +open(my $fh, '<', 'input') or die "$!"; +for my $rule (<$fh>) { + my ($container, $containees) = $rule =~ /^(.*) bags contain (.*)\.$/; + if ($containees eq 'no other bags') { + next; + } + my @subs = split(', ', $containees); + for my $s (@subs) { + my ($count, $name) = $s =~ m/(\d+) (.*) bag(?:s)?/; + push(@{$h{$container}}, [$count, $name]); + } +} + +# walk the walk +printf "%d\n", num_bags('shiny gold'); + +sub num_bags { + my ($b) = @_; + if (!exists $h{$b}) { + # no other bags needed + return 0; + } + my $n = 0; + for my $s (@{$h{$b}}) { + # Don't forget to add yourself! + $n += ($s->[0] * num_bags($s->[1])) + $s->[0]; + } + return $n; +} + +exit(0); + diff --git a/2020/08/input b/2020/08/input new file mode 100644 index 0000000..e49a364 --- /dev/null +++ b/2020/08/input @@ -0,0 +1,625 @@ +jmp +301 +acc +27 +nop +299 +jmp +168 +acc +0 +acc +48 +acc -5 +jmp +420 +jmp +155 +acc -16 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$_[0]; $ptr++ }, + nop => sub { $ptr++ }, + jmp => sub { $ptr += $_[0] }, +); + +while (1) { + if (exists $seen{$ptr}) { + print "$acc\n"; + exit(0); + } + my ($ins, $val) = split(' ', $lines[$ptr]); + # print "$ptr\t$acc\t$lines[$ptr]\n"; + $seen{$ptr} = 1; + $C{$ins}->($val); +} + +# heh infinite loop if we don't find an infinite loop diff --git a/2020/08/sol2.pl b/2020/08/sol2.pl new file mode 100755 index 0000000..5d4b71b --- /dev/null +++ b/2020/08/sol2.pl @@ -0,0 +1,52 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +open(my $fh, '<', 'input') or die "$!"; +my @lines; +{ + local $/; + my $content = <$fh>; + @lines = split("\n", $content); +} + +my $goal = scalar @lines; +my $attempts; +for (my $i = 0; $i < @lines; $i++) { + my ($inst, $val) = split(' ', $lines[$i]); + if ($inst eq 'nop') { + my @game = @lines; + $game[$i] = "jmp $val"; + play_out(@game); + } elsif ($inst eq 'jmp') { + my @game = @lines; + $game[$i] = "nop $val"; + play_out(@game); + } +} + +sub play_out { + my (@game) = @_; + $attempts++; + + my $acc = 0; + my $ptr = 0; + my %seen; + my %C = ( + acc => sub { $acc += $_[0]; $ptr++ }, + nop => sub { $ptr++ }, + jmp => sub { $ptr += $_[0] }, + ); + + while ($ptr != $goal) { + if (exists $seen{$ptr}) { + return 0; + } + my ($ins, $val) = split(' ', $game[$ptr]); + # print "$ptr\t$acc\t$lines[$ptr]\n"; + $seen{$ptr} = 1; + $C{$ins}->($val); + } + print "After $attempts attempts: $acc\n"; + exit(0); +} diff --git a/2020/09/input b/2020/09/input new file mode 100644 index 0000000..c3b902a --- /dev/null +++ b/2020/09/input @@ -0,0 +1,1000 @@ +26 +36 +37 +9 +8 +22 +41 +5 +17 +44 +40 +31 +10 +33 +30 +50 +24 +4 +12 +46 +39 +45 +42 +7 +27 +13 +58 +11 +14 +53 +9 +15 +23 +18 +16 +21 +17 +49 +19 +20 +32 +31 +22 +30 +24 +35 +28 +33 +25 +47 +57 +26 +27 +29 +83 +34 +37 +36 +59 +46 +39 +51 +44 +54 +56 +48 +49 +100 +62 +50 +52 +72 +53 +55 +60 +96 +61 +91 +65 +70 +85 +87 +88 +114 +83 +113 +92 +93 +97 +104 +142 +99 +102 +103 +153 +105 +108 +115 +116 +148 +144 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+ + # TODO: optimize? + my %seen; + for my $m (@$memA) { + $seen{$m} = 1; + my $c = $l - $m; + if ($seen{$c} && $c != $m) { + # success! + return; + } + } + + # nothing adds up! report & exit + print "$l\n"; + exit 0; +} diff --git a/2020/09/sol2.pl b/2020/09/sol2.pl new file mode 100755 index 0000000..21ffa85 --- /dev/null +++ b/2020/09/sol2.pl @@ -0,0 +1,46 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +use List::Util qw(min max); + +my $invalid = `./sol1.pl input`; # cheers +die "$!" if $?; + +my @nums; +{ + local $/; + open(my $fh, '<', 'input') or die "$!"; + @nums = split("\n", <$fh>); +} + +# IDEA: caterpillar slide +# - inch front forward until > invalid +# - inch back forward until < invalid +# if at any point = invalid, we win +my $sum = 0; +my @mem; + +print "GOAL: $invalid\n"; +for my $n (@nums) { + printf "DBG> n: %d, sum: %d, wind: %d\n", $n, $sum, scalar @mem; + if ($sum == $invalid) { + my $result = min(@mem) + max(@mem); + print "$result\n"; + exit 0; + } + + # move that butt forward until we can add $n without overflowing + while (($sum + $n) > $invalid) { + $sum -= shift(@mem); + if (!@mem) { + # impossible, too big + exit(1); + } + } + # scooch forward! + $sum += $n; + push(@mem, $n); +} + +exit 1; diff --git a/2020/10/input b/2020/10/input new file mode 100644 index 0000000..20133c9 --- /dev/null +++ b/2020/10/input @@ -0,0 +1,100 @@ +46 +63 +21 +115 +125 +35 +89 +17 +116 +90 +51 +66 +111 +142 +148 +60 +2 +50 +82 +20 +47 +24 +80 +101 +103 +16 +34 +72 +145 +141 +124 +14 +123 +27 +62 +61 +95 +138 +29 +7 +149 +147 +104 +152 +22 +81 +11 +96 +97 +30 +41 +98 +59 +45 +88 +37 +10 +114 +110 +4 +56 +122 +139 +117 +108 +91 +36 +146 +131 +109 +31 +75 +70 +140 +38 +121 +3 +28 +118 +54 +107 +84 +15 +76 +71 +102 +130 +132 +87 +55 +129 +83 +23 +42 +69 +1 +77 +135 +128 +94 diff --git a/2020/10/sol1.pl b/2020/10/sol1.pl new file mode 100755 index 0000000..89bc898 --- /dev/null +++ b/2020/10/sol1.pl @@ -0,0 +1,27 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +my @adapters; +while () { + chomp; + push(@adapters, $_); +} + +@adapters = sort { $a <=> $b } @adapters; + +my %spread; +my $last = 0; +for my $n (@adapters) { + my $delta = $n - $last; + if ($delta > 3) { + die "assert -- greater than 3 diff\n"; + } + $spread{$delta}++; + $last = $n; +} + +$spread{3}++; # for the device + +my $result = $spread{1} * $spread{3}; +print "$result\n"; diff --git a/2020/10/sol2.pl b/2020/10/sol2.pl new file mode 100755 index 0000000..182f5c3 --- /dev/null +++ b/2020/10/sol2.pl @@ -0,0 +1,36 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +my @adapters; +while () { + chomp; + push(@adapters, $_); +} + +# reverse! +@adapters = sort { $b <=> $a } (@adapters, 0); + +# Consider 1 2 3 4 5 6 +# set n(9) = 1 +# 6 -> n(9) # 1 +# 5 -> n(6) # 1 +# 4 -> n(5) + n(6) # 2 +# 3 -> n(4) + n(5) + n(6) # 4 +# 2 -> n(3) + n(4) + n(5) # 7 +# 1 -> n(2) + n(3) + n(4) # 13 + +my %H; +$H{$adapters[0] + 3} = 1; # device +while (@adapters) { + my $n = shift(@adapters); + # how many things can you get to? + my $total; + for (my $i = $n + 1; $i <= $n + 3; $i++) { + if (exists($H{$i})) { + $total += $H{$i}; + } + } + $H{$n} = $total; +} +print "$H{0}\n"; diff --git a/2020/11/input b/2020/11/input new file mode 100644 index 0000000..c485869 --- /dev/null +++ b/2020/11/input @@ -0,0 +1,99 @@ +LLLLLLLLLL.LLLLLLLLL.LLLLL.LLLLL.LLLLLLL.LLLL..LLLLLLLL.LLLLLLLL.LLLLLLLL..LLLLLLLL.LLLLLLLL.LLLLL +LLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLL..LLLLLL.LLLLL.LLLLLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLL +LLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLL.LLLL.LLLLLLLLLLLL.LLLLLLLLL.LLLL.LLL.LLLLL +LLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLLLLLLLL.LLLLL.LLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLL.LLL.LLLLLLLLLL +LLLLLLLLLL.LLLLLLLLL.LLLLL.LLLLL.LLLLLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLL.LLLLL +LLLLLLLLLL.LLLLLLLLL.LLLLL.L.LLLLLLLLLLL.LLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLLLLLLLLLLLL.LLLLLLLL.LLLLL 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+LLLLLLLLLL.LLLLLLLLLLLLLLLLLLLLL.LLLLLL..LLLLLLLLLLLLLL.LLLLLLLL.LLLLLLLL..LLLLLLLL.LLLLLLLL.LLLLL +LLLLLL.L.L.LLLLLLLLLLLLLLLLLLLLL.LLLLLL.LLLLLL.LLLLLLLL.LLLLLLLL.LLLLLLLL.LLLLLLLLL.LLLLLLLL.LLLLL +L.LLLLLLLLLLLLLLLLLLLLLLLL.LLLLL.LLLLLLL.LL.LLLLLLLLLLLLLLLLLLLLLLLLLLLLL.LLLLLLLLLLLLLL.LLL..LLLL diff --git a/2020/11/sol1.pl b/2020/11/sol1.pl new file mode 100755 index 0000000..d624c1e --- /dev/null +++ b/2020/11/sol1.pl @@ -0,0 +1,71 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +use Storable qw(dclone); + +# Read in the grid +# TRICK: to make neighbors easier, pad by '.' on all ends +my @G; +my $i = 0; +while () { + chomp; + $G[$i] = ['.', split('', $_), '.']; + $i++; +} +push(@G, [('.') x scalar @{$G[0]}]); +unshift(@G, [('.') x scalar @{$G[0]}]); + +$i = 0; +while (evolve(\@G)) { + print "Evolving ... $i\n"; + $i++; +} + +my $total = 0; +for my $r (@G) { + $total += scalar grep { $_ eq '#' } @$r; +} +print "$total\n"; + +sub evolve { + my ($G) = @_; + # 1. deep clone + # 2. for loop over grid, change (mark did_change) + # 3. return did_change + my $orig = dclone($G); + my $did_change; + + my $R = scalar @$orig; + my $C = scalar @{$orig->[0]}; + for (my $i = 1; $i < $R - 1; $i++) { + for (my $j = 1; $j < $C - 1; $j++) { + my $seat = $orig->[$i]->[$j]; + next if $seat eq '.'; # floor don't change + + # neighbors... + my @neighs = map { $orig->[$_->[0]]->[$_->[1]] } ( + [$i - 1, $j - 1], + [$i - 1, $j], + [$i - 1, $j + 1], + [$i, $j - 1], + #[$i, $j], <-- don't include self + [$i, $j + 1], + [$i + 1, $j - 1], + [$i + 1, $j], + [$i + 1, $j + 1], + ); + my $num_occ = scalar grep { $_ eq '#' } @neighs; + + if ($seat eq 'L' && $num_occ == 0) { + $G->[$i]->[$j] = '#'; + $did_change = 1; + } elsif ($seat eq '#' && $num_occ >= 4) { + $G->[$i]->[$j] = 'L'; + $did_change = 1; + } + } + } + + return $did_change;; +} diff --git a/2020/11/sol2.pl b/2020/11/sol2.pl new file mode 100755 index 0000000..936b18e --- /dev/null +++ b/2020/11/sol2.pl @@ -0,0 +1,99 @@ +#!/usr/bin/env perl +use strict; +use warnings; + +use Storable qw(dclone); + +# Read in the grid +my @G; +my $i = 0; +while () { + chomp; + $G[$i] = [split('', $_)]; + $i++; +} + +$i = 0; +while (evolve(\@G)) { + print "Evolving ... $i\n"; + $i++; +} + +my $total = 0; +for my $r (@G) { + $total += scalar grep { $_ eq '#' } @$r; +} +print "$total\n"; + +# TRICK! because floor is static, the neighbors NEVER CHANGE +# so we can pay the cost of finding them once, and then never +# again :) +my %neigh_cache; +sub neigh { + my ($i, $j, $G) = @_; + my $key = "$i,$j"; + if (exists $neigh_cache{$key}) { + return @{$neigh_cache{$key}}; + } + + # Not in cache, compute + my $R = scalar @$G; + my $C = scalar @{$G->[0]}; + my $finder = sub { + my ($updater) = @_; + my ($si, $sj) = $updater->($i, $j); + while ($si >= 0 && $si < $R && $sj >= 0 && $sj < $C) { + if ($G->[$si]->[$sj] ne '.') { + return [$si, $sj]; + } + ($si, $sj) = $updater->($si, $sj); + } + return; + }; + + my @neighs = grep { defined($_) } ( + $finder->(sub { return $_[0] + 1, $_[1] }), + $finder->(sub { return $_[0] - 1, $_[1] }), + $finder->(sub { return $_[0] + 1, $_[1] + 1 }), + $finder->(sub { return $_[0] + 1, $_[1] - 1 }), + $finder->(sub { return $_[0] - 1, $_[1] + 1 }), + $finder->(sub { return $_[0] - 1, $_[1] - 1 }), + $finder->(sub { return $_[0], $_[1] + 1 }), + $finder->(sub { return $_[0], $_[1] - 1 }), + ); + $neigh_cache{$key} = \@neighs; + return @neighs; +} + +sub evolve { + my ($G) = @_; + # 1. deep clone + # 2. for loop over grid, change (mark did_change) + # 3. return did_change + my $orig = dclone($G); + my $did_change; + + my $R = scalar @$orig; + my $C = scalar @{$orig->[0]}; + for (my $i = 0; $i < $R; $i++) { + for (my $j = 0; $j < $C; $j++) { + my $seat = $orig->[$i]->[$j]; + next if $seat eq '.'; # floor don't change + + # neighbors... + my @coords = neigh($i, $j, $orig); + my @neighs = map { $orig->[$_->[0]]->[$_->[1]] } @coords; + my $num_occ = scalar grep { $_ eq '#' } @neighs; + + if ($seat eq 'L' && $num_occ == 0) { + $G->[$i]->[$j] = '#'; + $did_change = 1; + } elsif ($seat eq '#' && $num_occ >= 5) { + $G->[$i]->[$j] = 'L'; + $did_change = 1; + } + } + } + + return $did_change;; +} diff --git a/README.md b/README.md index 271cae7..f451e36 100644 --- a/README.md +++ b/README.md @@ -1,4 +1,8 @@ # Advent of Code +Historically, I do the first 10d of so in a language that I'd like to learn / +practice! + +* [2020](./2020): All Perl * [2021](./2021): Mostly Python, some C * [2022](./2022): Attempting CHICKEN Scheme -- libgit2 1.8.1