Description: Demonstration of the process of binary tree traversal, so first of all establish a binary tree, and graph shows that the shape of the tree. Established process is used to facilitate pre-order method to create, design spanning two ways: one is the system of randomly generated, and the other is manual input. Taking into account the limited nature of the interface screen, limited to not more than 5 tree layer, a maximum of 26 characters, enter the decimal point character . On behalf of NULL. The initial tree for a certain color nodes, three cases of traversal using fill another eye-catching colors, to indicate the traversal of the current node, at the same time revealed that the serial number of nodes visited. At the same time, the process of traversal in the traversal graph traversal sequence shown below.
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