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Life is like a mirror, if you frown at it, it frowns back; if you smile, it returns the greeting.
孔子说:“君子帮助人取得成绩,不促使人陷入失败。小人相反。”
The story is told by the dead, and the dead have no need for lies.
The true power of an algorithm is not in its speed or efficiency, but in its ability to reveal the hidden structures of the problems it addresses.