34 lines
767 B
PHP
34 lines
767 B
PHP
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<?php
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$lines = explode("\n", file_get_contents('./input.txt'));
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$scores = [
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')' => 3,
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']' => 57,
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'}' => 1197,
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'>' => 25137,
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];
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$corrupted = [];
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foreach ($lines as $line) {
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$chunks = [];
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foreach (str_split($line) as $chunk) {
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switch ($chunk) {
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case '(': $chunks[] = ')';break;
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case '[': $chunks[] = ']';break;
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case '{': $chunks[] = '}';break;
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case '<': $chunks[] = '>';break;
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default:
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$last_chunk = array_pop($chunks);
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if ($last_chunk !== $chunk) {
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$corrupted[] = $chunk;
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}
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}
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}
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}
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echo array_sum(array_map(static function ($score) use ($scores) {
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return $scores[$score];
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}, $corrupted));
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