Introduction - If you have any usage issues, please Google them yourself
(1) known to a complete binary tree stored in a one-dimensional array T [n] in, T [n] is stored in the value of each node. Try to design an algorithm, from T [0] started in order to read out the value of each node to build the binary tree binary list said. (2) two-order binary tree traversal (Double-order traversal) is: For each binary tree node, the first visit to this node, and then double-traversing its left subtree, and then visit this node, followed by two-order traversal of its right subtree. Write down the implementation of this two-order traversal algorithm.