preorder traversal
Preorder traversal is a method used in binary tree data structures to visit and process each node in a specific order. It follows a root-left-right pattern, where the root of the tree is visited first, followed by the left subtree, and then the right subtree. This traversal can be implemented recursively or iteratively, and it helps in various tree-related operations, such as printing all nodes in the tree, creating a copy of the tree, or evaluating tree expressions.
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