—— 请按键盘 空白键 开始游戏 ——

The real test of an algorithm is not just its correctness, but its scalability and robustness.
The imagination is a muscle. If it is not exercised, it atrophies.
选自汉·桓宽《盐铁论·力耕》。道:放大。治理百姓的方法,在于节约用度,注重农桑。