package GoRetro import "math" type Vector struct { X float64 Y float64 } func vectorAdd(v1, v2 Vector) Vector { return Vector{ X: v1.X + v2.X, Y: v1.Y + v2.Y, } } func vectorDistance(v1, v2 Vector) float64 { return math.Sqrt(math.Pow(v2.X-v1.X, 2) + math.Pow(v2.Y-v1.Y, 2)) }