Question

At which positions of a binary heap might the second-largest key be stored, considering the tree has more than 2 nodes?

a. Always an internal node.
b. Always an external node.
c. Either a child node of the root or one of the grandchildren of the root.
d. Always the last node.
e. Always one of the children of the root node.
f. One of the grandchildren of the root node.

Answer 1

The second-largest key in a binary heap can be stored at positions either a child node of the root or one of the grandchildren of the root.

Step-by-step explanation:

In a binary heap, the second-largest key can be stored at positions c. Either a child node of the root or one of the grandchildren of the root. This is because a binary heap is a complete binary tree where each parent node is larger than or equal to its children. So, the largest key will be at the root, and the second-largest key can either be one of the children of the root or one of the grandchildren of the root.