Data Structures · Question 19 · Easy
A tree data structure has 25 nodes. How many edges does it have?
- 24
- 50
- 26
- 25
Answer and explanation
Answer: A. 24
Explanation: Every node except the root has exactly one edge to its parent, so a tree with n nodes has n - 1 edges: 25 - 1 = 24.
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