/* Includes the functions for Recursive Traversals of a Binary Tree. It is assumed that nodes and tree have been created as per create_node.c */ #include void inOrderTraversal(struct node *node) { if (node == NULL) // if tree is empty return; inOrderTraversal(node->leftNode); printf("\t%d\t", node->data); inOrderTraversal(node->rightNode); } void preOrderTraversal(struct node *node) { if (node == NULL) // if tree is empty return; printf("\t%d\t", node->data); preOrderTraversal(node->leftNode); preOrderTraversal(node->rightNode); } void postOrderTraversal(struct node *node) { if (node == NULL) // if tree is empty return; postOrderTraversal(node->leftNode); postOrderTraversal(node->rightNode); printf("\t%d\t", node->data); } int main(void) { /* traversals can be done by simply invoking the function with a pointer to the root node. */ return 0; }