package snake

/** m01 util: small helpers used by every later module. */
object Util:

  def range(n: Int): List[Int] = List.range(0, n)

  def dropLast[A](xs: List[A]): List[A] = xs.dropRight(1)

  def contains[A](xs: List[A], p: A, eq: (A, A) => Boolean): Boolean = xs.exists(x => eq(x, p))