/
app.js
68 lines (62 loc) · 1.54 KB
/
app.js
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const { Console } = require("./console");
const console = new Console();
console.writeln('101 en romano: ' + decimalToRoman(101));
console.writeln('45 en romano: ' + decimalToRoman(45));
console.writeln('236 en romano: ' + decimalToRoman(236));
console.writeln('841 en romano: ' + decimalToRoman(841));
function decimalToRoman(num) {
if (num < 1 || num > 999) {
return;
}
const CODES = [
["M", "D", "C"],
["C", "L", "X"],
["X", "V", "I"]
]
const CENTS = 0;
const TEENS = 1;
const UNITS = 2;
let separatedNumbers = splitNumber(num);
let result = "";
for (let i = 0; i < separatedNumbers.length; i++) {
result += toRomanSystem(CODES[i], separatedNumbers[i]);
}
return result;
function splitNumber(num) {
let result = [];
do {
let temp = num % 10;
result.unshift(temp);
num = parseInt(num / 10);
} while (result.length < CODES.length);
return result;
}
function toRomanSystem(codes, digit) {
let result = "";
if (0 < digit && digit <= 4) {
result += codes[UNITS];
if (digit >= 2 && digit <= 3) {
result += codes[UNITS];
if (digit == 3) {
result += codes[UNITS];
}
}
}
if (digit >= 4 && digit < 9) {
result += codes[TEENS];
}
if (digit > 5) {
result += codes[UNITS];
if (digit >= 7 && digit <= 8) {
result += codes[UNITS];
if (digit == 8) {
result += codes[UNITS];
}
}
}
if (digit === 9) {
result += codes[CENTS];
}
return result;
}
}