mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 8 -- https://adventofcode.com/2025/day/8

unit sub MAIN(IO() $inputfile where *.f = 'aoc08.input', Bool :v(:$verbose) = False);

class ElectricalSystem
{

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 7 -- https://adventofcode.com/2025/day/7

unit sub MAIN(IO() $inputfile where *.f = 'aoc07.input', Bool :v(:$verbose) = False);

my @lines = $inputfile.lines;
my $width = @lines[0].chars;

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 6 -- https://adventofcode.com/2025/day/6

unit sub MAIN(IO() $inputfile where *.f = 'aoc06.input', Bool :v(:$verbose) = False);

# Apply the operator (+ or *) given as the last element to the remaining terms
sub calculate(@problem is copy) is nodal

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 5 -- https://adventofcode.com/2025/day/5

unit sub MAIN(IO() $inputfile where *.f = 'aoc05.input', Bool :v($verbose) = False);

sub to-range(Str $s) { Range.new(|$s.comb(/\d+/)».Int) }

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 4 -- https://adventofcode.com/2025/day/4

class PaperGrid
{
    has Str $.map;

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 3 -- https://adventofcode.com/2025/day/3

unit sub MAIN(IO() $inputfile where *.f = 'aoc03.input', Bool :v($verbose) = False);

sub joltage($bank, $count=2)
{

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 2 -- https://adventofcode.com/2025/day/2

unit sub MAIN(IO() $inputfile where *.f = 'aoc02.input', Bool :v($verbose) = False);

# Find invalid IDs in a list of ranges
multi invalid-ids(Str $ranges, Bool :$simple = False)

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 1 -- https://adventofcode.com/2025/day/1

class Safe
{
    has Int $.modulo = 100;
    has Int $.dial = $!modulo div 2;

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2025 day 1 -- https://adventofcode.com/2025/day/1

class Safe
{
    has Int $.modulo = 100;
    has Int $.dial = $!modulo div 2;

mscha

#!/usr/bin/env raku
use v6.d;
$*OUT.out-buffer = False;   # Autoflush

# Advent of Code 2024 day 19 -- https://adventofcode.com/2024/day/19

class TowelArranger
{
    has @.towels;
    has @.designs;