树形DP之初探 - xpycc的日志 - 网易博客


树形DP之初探 - xpycc的日志 - 网易博客
树型动态规划就是在"树"的数据结构上的动态规划，平时作的动态规划都是线性的或者是建立在图上的，线性的动态规划有二种方向既向前和向后，相应的线性的动态规划有二种方法既顺推与逆推，而树型动态规划是建立在树上的，所以也相应的有二个方向：

1. 根―>叶：不过这种动态规划在实际的问题中运用的不多，也没有比较明显的例题。
2. 叶－>根：既根的子节点传递有用的信息给根，完后根得出最优解的过程。

而树形DP的实现也是比较特别的，一般采用记忆化搜索，而不是传统的迭代形式
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