Consider a complete binary tree with 7 nodes. Let A denote the set of first 3…

GATE · 2021 · CS · Set 2 · Computer Science & IT

Consider a complete binary tree with 7 nodes. Let A denote the set of first 3 elements obtained by performing Breadth-First Search (BFS) starting from the root. Let B denote the set of first 3 elements obtained by performing Depth-First Search (DFS) starting from the root.

The value of ∣A−B∣ is _____________ .

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