点灯游戏是一个十分有趣的智力游戏:有一行N行N列的灯,开始时全部是灭的,当你点击其中一盏灯是他的上下左右(若存在的话)状态全部改变,现在要求你在限定的时间内以最少地步数,将全部的灯点亮.-Lighting game is a very interesting puzzle: there is a line N line N out the lights, start all off, when you click one of the lights of his upper and lower left (if present) state of all changed and now requires you to within a specified time point at least a few, will all the lights lit.