—— 请按键盘 空白键 开始游戏 ——

The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
Love is the ability and willingness to allow those that you care for to be what they choose for themselves without any insistence that they satisfy you.
我是变革的催化剂……作为一个局外人,你不可能在30多年的时间里取得成功而不在周围留下一定的伤痕。
The world is not a problem to be solved, but a mystery to be lived.
变革在开始时最艰难,在中期最混乱,在结束时最美好。