export default function topKFrequent(words: string[], k: number): string[] { words.sort(); const storage = new Map<string, number>(); for (const word of words) { storage.set(word, 1 + (storage.get(word) ?? 0)); } return [...storage.entries()] .sort((a, b) => b[1] - a[1]) .slice(0, k) .map((a) => a[0]);}