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<?php$_fp=fopen("php://stdin","r");$input=stream_get_contents($_fp);$lines=preg_split('/\R/',$input);// Remove first linearray_shift($lines);$pattern='/^\([\+\-]?(90(?:\.0+)?|[0-8]?\d(?:\.\d+)?),\s?[\+\-]?(180(?:\.0+)?|(?:1?[0-7]\d|0?\d?\d)(?:\.\d+)?)\)$/';foreach($linesas$line){// Check each line$result=preg_match($pattern,$line)?'Valid':'Invalid';echo$result.PHP_EOL;}?>
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Detecting Valid Latitude and Longitude Pairs
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PHP solution: