Introduction - If you have any usage issues, please Google them yourself
Data structure, the establishment and traversal of binary tree
1. According to the sequence order before building a binary tree, expressed as a # .
2. The order, after order traversal of the binary tree, output traversal sequence.
3. The depth of the binary tree and the output, or calculate the number of binary tree leaves and output.
4. Takes the auxiliary storage structure of the stack to achieve binary tree non-recursive algorithm or in the preamble of the queue is auxiliary storage structure to achieve the level of the binary tree through calendar calculation method.