A Complete Binary Tree with N Nodes May Be Stored

question 30

Multiple Choice

A complete binary tree with N nodes may be stored in an array A of length N by storing the root at A[0],and then storing in successive array locations the nodes of the tree in increasing order of the level of nodes.If nodes in the same level are stored in left to right order,then the node stored at A[k] will be a leaf if and only if

• A) 2k+1 ≥ N
• B) 2k+1 > N
• C) k/2 > N
• D) None of the above

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