Standard input is empty
/opt/scala/bin/scalac: line 50: /dev/null: Permission denied Main.scala:1: error: expected class or object definition val b = 2 ^ Main.scala:2: error: expected class or object definition val a = (b += 2) ^ 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