없는 숫자 더하기
// javascriptconst solution = (numbers) => { const numberArr = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; return numberArr .filter(num => !numbers.includes(num)) .reduce((acc, curr) => acc + curr, 0); }; // typescriptconst solution = (numbers: number[]): number => { const numberArr = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; return numberArr .filter(num => !numbers.includes(num)) ..
