31 lines
607 B
PHP
31 lines
607 B
PHP
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<?php
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$FILE_NAME = "input.txt";
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$sum = 0;
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$fd = fopen($FILE_NAME, "r");
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while($line = fgets($fd)){
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$data = array();
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preg_match("/Game (\d+): (.*)/", $line, $data);
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$game_id = $data[1];
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$hand = explode(";", $data[2]);
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$bag = array(
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"red" => 0,
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"green" => 0,
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"blue" => 0,
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);
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foreach ($hand as $h) {
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$colors = array();
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preg_match_all("/(\d+) (red|green|blue)/", $h, $colors);
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foreach (array_combine($colors[2], $colors[1]) as $key => $value) {
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$bag[$key] = max($bag[$key], $value);
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}
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}
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print_r($bag);
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$sum += $bag['red'] * $bag['green'] * $bag['blue'];
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}
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fclose($fd);
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echo $sum;
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