Standard input is empty
/opt/scala/bin/scalac: line 50: /dev/null: Permission denied Main.scala:4: error: classes are not allowed to be virtual class C <: A ^ Main.scala:5: error: ';' expected but '<:' found. object D <: A ^ two errors found 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