36 lines
750 B
PHP
36 lines
750 B
PHP
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<?php
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// Over-complicated because I thought they wouldn't put the cube back in the bag at first.
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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(";", $data[2]);
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$valid = true;
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foreach ($hand as $h) {
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$bag = array(
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"red" => 12,
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"green" => 13,
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"blue" => 14,
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);
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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] = $bag[$key] - $value;
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if($bag[$key] < 0){$valid = false;}
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}
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}
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if($valid){$sum = $sum + $game_id; echo $game_id . "\n";}
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}
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fclose($fd);
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echo $sum;
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