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export default function makeLargestSpecial(s: string): string {    const candidates = new Array<string>();    for (let i = 0, cur = 0, last = 0; i < s.length; i++) {        cur += s[i] === "1" ? 1 : -1;        if (cur == 0) {            candidates.push(                "1" + makeLargestSpecial(s.substring(last + 1, i)) + "0",            );            last = i + 1;        }    }    candidates.sort((a, b) => b.localeCompare(a));    return candidates.join("");}