leetcode506. 相对名次 吴丹阳

题目
506. 相对名次

解法

class Solution {
    
    /**
     * @param Integer[] $score
     * @return String[]
     */
    function findRelativeRanks($score) {
        if (empty($score)) {
            return [];
        }
        
        $scoreCopy = $score;
        rsort($scoreCopy);
        $scoreCopyMap = array_flip($scoreCopy);
        
        $ret = [];
        foreach ($score as $scoreItem) {
            if ($scoreCopyMap[$scoreItem] == 0) {
                $ret[] = 'Gold Medal';
            } elseif ($scoreCopyMap[$scoreItem] == 1) {
                $ret[] = 'Silver Medal';
            } elseif ($scoreCopyMap[$scoreItem] == 2) {
                $ret[] = 'Bronze Medal';
            } else {
                $ret[] = strval($scoreCopyMap[$scoreItem] + 1);
            }
        }
        
        return $ret;
    }
}