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The number of possible ordered trees with 3 nodes ,please explain

Answer Posted / Rupesh Kumar Pandey

There are 5 possible ordered trees with 3 nodes. The order matters because we're looking for unique trees, not just the same tree rotated or mirrored. Here are the possible configurations:n1) A - B - Cn2) A - (B - C)n3) (A - B) - Cn4) A - (B - (C))n5) (A - (B)) - C

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