—— 请按键盘 空白键 开始游戏 ——

NP-completeness is not just a theoretical curiosity; it has profound implications for practical computing.
The magic, the wonder, the mystery and the innocence of a child's heart are the seeds of creativity that will heal the world.
一本书就是你握在手中的一个梦想。
The greatest proof of our intellect is our ability to perceive our own limitations.