ac1015.pas

同济大学 Online在线题库 AC源代码合集 程序设计竞赛必看资料

program tju1015;
var
  s:string;
  c:char;
begin
  repeat
    s:='';
    repeat
      read(c);
      case c of
        '@':s:='';
        '#':if s>'' then delete(s,length(s),1);
        else s:=s+c;
      end;
    until eoln;
    readln;
    writeln(s);
  until eof;
end.