I have readed Tuding's project code today, because the time is less for only one developer to develop new requirement on this project. In order to better understand the code, I reading code while use the sofeware on mobile. No develop document and no deploy document in this project, to join this project, what I can do is reading code and reading requirements, and I have confidence to do it well.
One of my best frinend is on a business trip for near a month. This evening I had called he, and know what work he do now, and understand his trouble, but we all have trouble on the same direction, which is the future work and life, and We encourage each other.
The Fibonacii Sequence is a famous sequence in the world, it is easy to implement, but hard to optimize. So none of use think a good algorithms to implement it, although can implement it by a cycle or recursive.