imajinyun /
leetcode-php
| Conditions | 4 |
| Paths | 4 |
| Total Lines | 17 |
| Code Lines | 10 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
| 1 | <?php |
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| 9 | public static function intToRoman(int $num): string |
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| 10 | { |
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| 11 | if (empty($num)) { |
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| 12 | return ''; |
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| 13 | } |
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| 14 | $numMap = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1]; |
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| 15 | $strMap = ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I']; |
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| 16 | |||
| 17 | $str = ''; |
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| 18 | for ($i = 0, $n = count($numMap); $i < $n; $i++) { |
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| 19 | while ($num >= $numMap[$i]) { |
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| 20 | $num -= $numMap[$i]; |
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| 21 | $str .= $strMap[$i]; |
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| 22 | } |
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| 23 | } |
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| 24 | |||
| 25 | return $str; |
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| 26 | } |
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| 28 |
