| Conditions | 4 |
| Paths | 4 |
| Total Lines | 16 |
| Code Lines | 10 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
| 1 | <?php |
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| 9 | public static function romanToInt(string $s): int |
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| 10 | { |
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| 11 | [$res, $len] = [0, strlen($s)]; |
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| 12 | if ($len === 0) { |
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| 13 | return $res; |
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| 14 | } |
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| 15 | $map = ['I' => 1, 'V' => 5, 'X' => 10, 'L' => 50, 'C' => 100, 'D' => 500, 'M' => 1000]; |
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| 16 | for ($i = 0, $j = 1; $j < $len; $i++, $j++) { |
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| 17 | if ($map[$s[$i]] >= $map[$s[$j]]) { |
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| 18 | $res += $map[$s[$i]]; |
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| 19 | } else { |
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| 20 | $res -= $map[$s[$i]]; |
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| 21 | } |
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| 22 | } |
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| 23 | |||
| 24 | return $res + $map[$s[$i]]; |
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| 25 | } |
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| 46 |