var i,n,m,ans,t,max:longint;
    b:boolean;
begin
  while not eof do begin
    read(n,m);
    b:=false;
    if n>m then begin
      t:=n; n:=m; m:=t; b:=true; end;
    max:=0;
    for i:=n to m do begin
      t:=i;
      ans:=1;
      while t>1 do begin
        if odd(t) then t:=t*3+1 else t:=t div 2;
        ans:=ans+1;
      end;
      if ans>max then max:=ans;
    end;
    if b then writeln(m,' ',n,' ',max) else writeln(n,' ',m,' ',max)
  end;
end.

• 到底是1027还是1207…… (519) 150014 2010-11-13 01:57:24