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import Element.elem
 
import Element.elem
 
abstract class Element {
  def contents: Array[String]
 
  def width: Int = contents(0).length
 
  def height: Int = contents.length
 
  def above(that: Element): Element = {
    val this1 = this widen that.width
    val that1 = that widen this.width
    elem(this1.contents ++ that1.contents)
  }
 
  def beside(that: Element): Element = {
    val this1 = this heighten that.height
    val that1 = that heighten this.height
    elem(
      for ((line1, line2) <- this1.contents zip that1.contents)
      yield line1 + line2)
  }
 
  def widen(w: Int): Element =
    if (w <= width) this
    else {
      val left = elem(' ', (w - width) / 2, height)
      var right = elem(' ', w - width - left.width, height)
      left beside this beside right
  }
 
  def heighten(h: Int): Element =
    if (h <= height) this
    else {
      val top = elem(' ', width, (h - height) / 2)
      var bot = elem(' ', width, h - height - top.height)
      top above this above bot
    }
 
  override def toString = contents mkString "\n"
}
 
object Element {
 
  private class ArrayElement(
    val contents: Array[String]
  ) extends Element
 
  private class LineElement(s: String) extends Element {
    val contents = Array(s)
    override def width = s.length
    override def height = 1
  }
 
  private class UniformElement(
    ch: Char,
    override val width: Int,
    override val height: Int
  ) extends Element {
    private val line = ch.toString * width
    def contents = Array.make(height, line)
  }
 
  def elem(contents: Array[String]): Element =
    new ArrayElement(contents)
 
  def elem(chr: Char, width: Int, height: Int): Element =
    new UniformElement(chr, width, height)
 
  def elem(line: String): Element =
    new LineElement(line)
}
 
class ArrayElement(val contents: Array[String]) extends Element {
 
}
 
class LineElement(s: String) extends Element {
  val contents = Array(s)
  override def width = s.length
  override def height = 1
}
 
class UniformElement(
  ch: Char,
  override val width: Int,
  override val height: Int
) extends Element {
  private val line = ch.toString * width
  def contents = Array.make(height, line)
}
 
object Main extends App {
  val space = elem(" ")
val corner = elem("+")
def spiral(nEdges: Int, direction: Int): Element = {
if (nEdges == 1)
elem("+")
else {
val sp = spiral(nEdges - 1,
(direction + 3) % 4)
def verticalBar = elem('|', 1, sp.height)
def horizontalBar = elem('-', sp.width, 1)
if (direction == 0)
(corner beside horizontalBar) above (sp beside space)
else if (direction == 1)
(sp above space) beside (corner above verticalBar)
else if (direction == 2)
(space beside sp) above (horizontalBar beside corner)
else
(verticalBar above corner) beside (space above sp)
}
}
 
  val nSides = args(0).toInt
  println(spiral(nSides, 0))
}

Main.scala:63: error: value make is not a member of object Array
    def contents = Array.make(height, line)
                         ^
Main.scala:92: error: value make is not a member of object Array
  def contents = Array.make(height, line)
                       ^
two errors found
Usage: scalac <options> <source files>
where possible standard options include:
  -Dproperty=value                Pass -Dproperty=value directly to the runtime system.
  -J<flag>                        Pass <flag> directly to the runtime system.
  -P:<plugin>:<opt>               Pass an option to a plugin
  -X                              Print a synopsis of advanced options.
  -bootclasspath <path>           Override location of bootstrap class files.
  -classpath <path>               Specify where to find user class files.
  -d <directory|jar>              destination for generated classfiles.
  -dependencyfile <file>          Set dependency tracking file.
  -deprecation                    Emit warning and location for usages of deprecated APIs.
  -encoding <encoding>            Specify character encoding used by source files.
  -explaintypes                   Explain type errors in more detail.
  -extdirs <path>                 Override location of installed extensions.
  -feature                        Emit warning and location for usages of features that should be imported explicitly.
  -g:<level>                      Set level of generated debugging info. (none,source,line,vars,notailcalls) default:vars
  -help                           Print a synopsis of standard options
  -javabootclasspath <path>       Override java boot classpath.
  -javaextdirs <path>             Override java extdirs classpath.
  -language:<_,feature,-feature>  Enable or disable language features: `_' for all, `-language:help' to list
  -no-specialization              Ignore @specialize annotations.
  -nobootcp                       Do not use the boot classpath for the scala jars.
  -nowarn                         Generate no warnings.
  -optimise                       Generates faster bytecode by applying optimisations to the program
  -print                          Print program with Scala-specific features removed.
  -sourcepath <path>              Specify location(s) of source files.
  -target:<target>                Target platform for object files. All JVM 1.5 targets are deprecated. (jvm-1.5,jvm-1.6,jvm-1.7,jvm-1.8) default:jvm-1.6
  -toolcp <path>                  Add to the runner classpath.
  -unchecked                      Enable additional warnings where generated code depends on assumptions.
  -uniqid                         Uniquely tag all identifiers in debugging output.
  -usejavacp                      Utilize the java.class.path in classpath resolution.
  -usemanifestcp                  Utilize the manifest in classpath resolution.
  -verbose                        Output messages about what the compiler is doing.
  -version                        Print product version and exit.
  @<file>                         A text file containing compiler arguments (options and source files)

spoj: The program compiled successfully, but Main.class was not found.
      Class Main should contain method: def main(args: Array[String]).

Standard output is empty