http://www.google.com/search?hl=en&q=%22complexity+is+O%28%22&lr=lang_en
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I