# TDF_UTILS

## Tree
1. Generic Tree
2. for Organization, Menu, etc..
3. adjacency nodes can be ordered

通用的树，可以用来表现组织架构图等，相邻的组织架构可以强制排序。

## Binary Indexed Tree

## List
1. single list
2. for study only

## Double Linked List
Don't debug list, otherwise stack is overflow