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converts number to roman numeral
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function toRoman(num) { | |
let result = ''; | |
const decimal = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1]; | |
const roman = ["M", "CM","D","CD","C", "XC", "L", "XL", "X","IX","V","IV","I"]; | |
for (let i = 0;i<=decimal.length;i++) { | |
while (num%decimal[i] < num) { | |
result += roman[i]; | |
num -= decimal[i]; | |
} | |
} | |
return result; | |
} | |
toRoman(123); //returns "CXXIII" | |
toRoman(3290); // returns "MMMCCXC" | |
toRoman(777); // returns "DCCLXXVII" | |
toRoman(949); // returns "CMXLIX" | |
toRoman(2000); // returns "MM" |
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