tree traversal algorithms traversal of tree is systematic way of accessingor "visiting,all the positions of the specific action associated with the "visitof position depends on the application of this traversaland could involve anything from incrementing counter to performing some complex computation for in this sectionwe describe several common traversal schemes for treesimplement them in the context of our various tree classesand discuss several common applications of tree traversals preorder and postorder traversals of general trees in preorder traversal of tree the root of is visited first and then the subtrees rooted at its children are traversed recursively if the tree is orderedthen the subtrees are traversed according to the order of the children the pseudo-code for the preorder traversal of the subtree rooted at position is shown in code fragment algorithm preorder(tp)perform the "visitaction for position for each child in children(pdo preorder(tc{recursively traverse the subtree rooted at ccode fragment algorithm preorder for performing the preorder traversal of subtree rooted at position of tree figure portrays the order in which positions of sample tree are visited during an application of the preorder traversal algorithm paper title abstract ss ss ss ss ss ss ss ss ss references ss figure preorder traversal of an ordered treewhere the children of each position are ordered from left to right