Rzymski do najszybszego sposobu
function romanToInteger(s) {
let map = {
I: 1,
V: 5,
X: 10,
L: 50,
C: 100,
D: 500,
M: 1000,
IV: 4,
IX: 9,
XL: 40,
XC: 90,
CD: 400,
CM: 900
}
let result = 0;
for (let i = 0; i < s.length; i++) {
let current = s[i] + s[i + 1];
if (map[current] !== undefined) {
result += map[current];
i++;
} else {
result += map[s[i]];
}
}
return result;
}
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