readability test

gistfile1.txt

def f(q,n)
  if(n==nil)
  return null;
  end
  l=0; h=ln(q)-1;d=l<=h;
  while d
    x=(l+h)/2;v=q[x]
    if v>n then h=x-1
    elsif v<n then l=x+1
    else return v
    end
    d=l<=h;
  end
end