솔루션 const solution = (dots) => { const getInclination = ([[x1, y1], [x2, y2]]) => x2 !== x1 ? (y2 - y1) / (x2 - x1) : Infinity; const isParallel = (line1, line2) => getInclination(line1) === getInclination(line2); const answer = dots.some((dot) => { const line1 = [dots[0], dot]; const line2 = dots.filter((dot) => !line1.includes(dot)); return isParallel(line1, line2); }) ? 1 : 0; console.log(ans..