[Programmers] 평행

func solution(_ dots:[[Int]]) -> Int {
    
    if abs(Double(dots[1][0] - dots[0][0]) / abs(Double(dots[1][1] - dots[0][1]))) == 
    abs(Double(dots[3][0] - dots[2][0]) / Double(abs(dots[3][1] - dots[2][1]))){
        return 1
    }
    else{
       return 0 
    }
    
}