Data structures are the backbone of efficient algorithms.
The human being is a most curious creature. He thinks he has a soul, but he is a soul; he has a body.
天上永远不会掉下玫瑰来,如果想要更多的玫瑰,必须自己种植。
我们说的每一个字都是种在宇宙花园里的一颗种子。