15 lines
399 B
PHP
15 lines
399 B
PHP
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<?php
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$output = array_map(static function ($line) {
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return explode('|', $line)[1];
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}, explode("\n", file_get_contents('./input.txt')));
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echo array_reduce($output, static function($carry, $item) {
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$count = 0;
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$items = explode(' ', $item);
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foreach ($items as $item) {
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$count += in_array(strlen($item), [2, 4, 3, 7]) ? 1 : 0;
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}
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$carry += $count;
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return $carry;
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});
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