};
}
-defhash problem => qw/name level statement owner author private generator runner judge testcnt timeout olimit/;
+defhash problem => qw/name level difficulty statement owner author private generator runner judge testcnt timeout olimit/;
defhash contest => qw/start end name owner/;
defhash job => qw/date errors extension filesize private problem result result_text user/;
defhash user => qw/name email town university level/;