Question

What traversal?

static void XXX(BinNode rt) {
if (rt == null) return;
XXX( ());
XXX( ());
visit(rt);
}

Answer 1

The subject of this question is Computers and Technology. The given code is a recursive function for traversing a binary tree in an inorder traversal.

Step-by-step explanation:

The subject of this question is Computers and Technology. The given code appears to be a recursive function in a programming language, likely dealing with a binary tree data structure. The function is called XXX and takes a parameter rt, which represents the root of a binary tree.

The function first checks if the root is null and returns if it is null. If the root is not null, it recursively calls XXX on the left child of the root and then on the right child of the root. Finally, it visits the current root node.

The XXX function is recursively traversing the binary tree in an inorder traversal, visiting the nodes in the order of left child, root, right child.