AoC 2023 day 6
parent
0d3099cbae
commit
cd0c3ff083
|
@ -0,0 +1,61 @@
|
||||||
|
#!/usr/bin/env perl
|
||||||
|
# Copyright 2023 Síle Ekaterin Liszka
|
||||||
|
#
|
||||||
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
# of this software and associated documentation files (the "Software"), to deal
|
||||||
|
# in the Software without restriction, including without limitation the rights
|
||||||
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
# copies of the Software, and to permit persons to whom the Software is
|
||||||
|
# furnished to do so, subject to the following conditions:
|
||||||
|
#
|
||||||
|
# The above copyright notice and this permission notice shall be included in
|
||||||
|
# all copies or substantial portions of the Software.
|
||||||
|
#
|
||||||
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
# IN THE SOFTWARE.
|
||||||
|
|
||||||
|
use strict;
|
||||||
|
use warnings;
|
||||||
|
use feature qw(:5.36);
|
||||||
|
use autodie;
|
||||||
|
|
||||||
|
use List::Util qw(reduce);
|
||||||
|
|
||||||
|
open my $fh, '<', 'input.txt';
|
||||||
|
|
||||||
|
my $data = '';
|
||||||
|
{
|
||||||
|
local $/;
|
||||||
|
$data = <$fh>;
|
||||||
|
chomp $data;
|
||||||
|
}
|
||||||
|
my ($times, $distances) = split /\n/, $data, 2;
|
||||||
|
|
||||||
|
my @times = split / +/, $times;
|
||||||
|
shift @times;
|
||||||
|
my @distances = split / +/, $distances;
|
||||||
|
shift @distances;
|
||||||
|
|
||||||
|
sub calc_combos($time, $target) {
|
||||||
|
my $ret = 0;
|
||||||
|
for my $i (1 .. ($time - 1)) {
|
||||||
|
my $travel = ($time - $i) * $i;
|
||||||
|
$ret++ if ($travel > $target);
|
||||||
|
}
|
||||||
|
return $ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
my @combos;
|
||||||
|
for my $race (0 .. $#times) {
|
||||||
|
my $time = $times[$race];
|
||||||
|
my $target = $distances[$race];
|
||||||
|
push @combos, calc_combos($time, $target);
|
||||||
|
}
|
||||||
|
|
||||||
|
say join(' ', @combos);
|
||||||
|
say reduce { $a * $b } @combos;
|
|
@ -0,0 +1,50 @@
|
||||||
|
#!/usr/bin/env perl
|
||||||
|
# Copyright 2023 Síle Ekaterin Liszka
|
||||||
|
#
|
||||||
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
|
# of this software and associated documentation files (the "Software"), to deal
|
||||||
|
# in the Software without restriction, including without limitation the rights
|
||||||
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
|
# copies of the Software, and to permit persons to whom the Software is
|
||||||
|
# furnished to do so, subject to the following conditions:
|
||||||
|
#
|
||||||
|
# The above copyright notice and this permission notice shall be included in
|
||||||
|
# all copies or substantial portions of the Software.
|
||||||
|
#
|
||||||
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||||
|
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
||||||
|
# IN THE SOFTWARE.
|
||||||
|
|
||||||
|
use strict;
|
||||||
|
use warnings;
|
||||||
|
use feature qw(:5.36);
|
||||||
|
use autodie;
|
||||||
|
|
||||||
|
use List::Util qw(reduce);
|
||||||
|
|
||||||
|
open my $fh, '<', 'input.txt';
|
||||||
|
|
||||||
|
my $data = '';
|
||||||
|
{
|
||||||
|
local $/;
|
||||||
|
$data = <$fh>;
|
||||||
|
chomp $data;
|
||||||
|
}
|
||||||
|
my ($time, $distance) = split /\n/, $data, 2;
|
||||||
|
$time =~ s/[^0-9]+//g;
|
||||||
|
$distance =~ s/[^0-9]+//g;
|
||||||
|
|
||||||
|
sub calc_combos($time, $target) {
|
||||||
|
my $ret = 0;
|
||||||
|
for my $i (1 .. ($time - 1)) {
|
||||||
|
my $travel = ($time - $i) * $i;
|
||||||
|
$ret++ if ($travel > $target);
|
||||||
|
}
|
||||||
|
return $ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
say calc_combos($time, $distance);
|
Loading…
Reference in New Issue