Create 12.整数转罗马数字.js

Author: yinxin630

12.整数转罗马数字.js

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+/**
+ * @param {number} num
+ * @return {string}
+ */
+var intToRoman = function(num) {
+    const table = {
+        1: ['I', 'II', 'III', 'IV', 'V', 'VI', 'VII', 'VIII', 'IX'],
+        10: ['X', 'XX', 'XXX', 'XL', 'L', 'LX', 'LXX', 'LXXX', 'XC'],
+        100: ['C', 'CC', 'CCC', 'CD', 'D', 'DC', 'DCC', 'DCCC', 'CM'],
+        1000: ['M', 'MM', 'MMM']
+    }
+
+    let result = [];
+    let cur = 1000;
+    while (num) {
+        if (num / cur >= 1) {
+            result.push(table[cur][Math.floor(num / cur) - 1]);
+            num = num % cur;
+        }
+
+        cur /= 10;
+    }
+
+    return result.join('');
+};