/opt/scala/bin/scalac: line 50: /dev/null: Permission denied
Main.scala:5: error: expected class or object definition
def balance(a: Account) = a.entries.sum
^
Main.scala:11: error: expected class or object definition
def sum[A](a: A)(implicit summer: Sum[A]) = summer.sum(a)
^
Main.scala:17: error: expected class or object definition
val account = Account(Person("name", Address("streetname", "cityname", "10000")), List(2, 8, 32))
^
Main.scala:19: error: expected class or object definition
println(sum(account))
^
four errors found
spoj: The program compiled successfully, but Main.class was not found.
Class Main should contain method: def main(args: Array[String]).