krzysiej/advent_of_code_2021
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6th day 1st part

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kplaczek
2021-12-06 18:05:33 +01:00
parent 5755201a62
commit c184b6b59c
2 changed files with 20 additions and 0 deletions
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06/input Normal file
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1,3,4,1,1,1,1,1,1,1,1,2,2,1,4,2,4,1,1,1,1,1,5,4,1,1,2,1,1,1,1,4,1,1,1,4,4,1,1,1,1,1,1,1,2,4,1,3,1,1,2,1,2,1,1,4,1,1,1,4,3,1,3,1,5,1,1,3,4,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,1,1,5,2,5,5,3,2,1,5,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,5,1,1,1,1,5,1,1,1,1,1,4,1,1,1,1,1,3,1,1,1,1,1,1,1,1,1,1,1,3,1,2,4,1,5,5,1,1,5,3,4,4,4,1,1,1,2,1,1,1,1,1,1,2,1,1,1,1,1,1,5,3,1,4,1,1,2,2,1,2,2,5,1,1,1,2,1,1,1,1,3,4,5,1,2,1,1,1,1,1,5,2,1,1,1,1,1,1,5,1,1,1,1,1,1,1,5,1,4,1,5,1,1,1,1,1,1,1,1,1,1,1,1,1,2,1,1,1,1,5,4,5,1,1,1,1,1,1,1,5,1,1,3,1,1,1,3,1,4,2,1,5,1,3,5,5,2,1,3,1,1,1,1,1,3,1,3,1,1,2,4,3,1,4,2,2,1,1,1,1,1,1,1,5,2,1,1,1,2

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06/part1.php Normal file
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<?php
$input = file('input', FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
$input = explode(',', $input[0]);
$fishes = array_fill(0, 9, 0);
foreach ($input as $fish) {
$fishes[$fish]++;
}
for ($i = 1; $i <= 80; $i++) {
$newLanternFish = $fishes[0];
for ($j = 1; $j <= 8; $j++) {
$fishes[$j-1] = $fishes[$j];
}
$fishes[6] += $newLanternFish;
$fishes[8] = $newLanternFish;
}
echo array_sum($fishes); //390011