LanderlYoung

Use some library like JavaPoet for java, KotlinPoet for kotlin to generate cpp code, instead of hand-craft them.

71 页 fastFib实现有误

3

71页第三个代码段 ``` haskell fastFib = fst $ fibPair ``` 应该是 ``` haskell fastFib = snd $ fibPair ``` 同理下面的`fibs'`也有这个问题 应改为 ``` hasell fibs' n = take n (map snd (iterate...