Shikiryu/advent_of_code_2022
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✨ Finit le jour 5

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This commit is contained in:
Clement Desmidt 2022-12-06 10:56:05 +01:00
parent f0609cd245
commit ff57718fa1
3 changed files with 76 additions and 2 deletions
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4
README.md
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@ -4,7 +4,7 @@
| Lundi | Mardi | Mercredi | Jeudi | Vendredi | Samedi | Dimanche |
|---------|---------|----------|---------|----------|---------|----------|
| | | | 1 ✅✅ | 2 🔲🔲 | 3 🔲🔲 | 4 🔲🔲 |
| 5 🔲🔲 | 6 🔲🔲 | 7 🔲🔲 | 8 🔲🔲 | 9 🔲🔲 | 10 🔲🔲 | 11 🔲🔲 |
| | | | 1 ✅✅ | 2 ✅✅ | 3 ✅✅ | 4 ✅✅ |
| 5 ✅✅ | 6 🔲🔲 | 7 🔲🔲 | 8 🔲🔲 | 9 🔲🔲 | 10 🔲🔲 | 11 🔲🔲 |
| 12 🔲🔲 | 13 🔲🔲 | 14 🔲🔲 | 15 🔲🔲 | 16 🔲🔲 | 17 🔲🔲 | 18 🔲🔲 |
| 19 🔲🔲 | 20 🔲🔲 | 21 🔲🔲 | 22 🔲🔲 | 23 🔲🔲 | 24 🔲🔲 | 25 🔲🔲 |

40
day_5/part_1.php Normal file
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<?php
[$columns, $movements] = explode("\n\n", file_get_contents('./input.txt'));
$columns = parseColumns($columns);
$movements = explode("\n", $movements);
foreach ($movements as $movement) {
preg_match('/^move (\d+) from (\d+) to (\d+)$/', $movement, $matches);
[, $number, $from, $to] = $matches;
for ($i = 0; $i < $number; $i++) {
$element = array_pop($columns[$from]);
if ($element === null) {
break;
}
$columns[$to][] = $element;
}
}
echo implode(array_map('array_pop', $columns));
function parseColumns(string $columns)
{
$parsed_columns = [];
$rows = array_map('str_split', explode("\n", $columns));
array_unshift($rows, null);
$rows = array_map(...$rows);
$rows = array_map('array_reverse', $rows);
foreach ($rows as $row) {
$number = array_shift($row);
if (!is_numeric($number) || empty($number)) {
continue;
}
$parsed_columns[$number] = array_filter($row, fn($cell) => !empty(trim($cell)));
}
return $parsed_columns;
}

34
day_5/part_2.php Normal file
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<?php
[$columns, $movements] = explode("\n\n", file_get_contents('./input.txt'));
$columns = parseColumns($columns);
$movements = explode("\n", $movements);
foreach ($movements as $movement) {
preg_match('/^move (\d+) from (\d+) to (\d+)$/', $movement, $matches);
[, $number, $from, $to] = $matches;
$elements = array_splice($columns[$from], count($columns[$from]) - $number, $number);
$columns[$to] = array_merge($columns[$to], $elements);
}
echo implode(array_map('array_pop', $columns));
function parseColumns(string $columns)
{
$parsed_columns = [];
$rows = array_map('str_split', explode("\n", $columns));
array_unshift($rows, null);
$rows = array_map(...$rows);
$rows = array_map('array_reverse', $rows);
foreach ($rows as $row) {
$number = array_shift($row);
if (!is_numeric($number) || empty($number)) {
continue;
}
$parsed_columns[$number] = array_filter($row, fn($cell) => !empty(trim($cell)));
}
return $parsed_columns;
}