The pre-order traversal of a binary search tree is given by 12, 8, 6, 2, 7, 9, 10, 16, 15, 19, 17, 20. Then the post-order traversal of this tree is:
2017 SET 2 || MCQ || 2-mark
2, 6, 7, 8, 9, 10, 12, 15, 16, 17, 19, 20
2, 7, 6, 10, 9, 8, 15, 17, 20, 19, 16, 12
7, 2, 6, 8, 9, 10, 20, 17, 19, 15, 16, 12
7, 6, 2, 10, 9, 8, 15, 16, 17, 20, 19, 12
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GATE|| C Programming & Data Structure || Pyqs (2010 to 2025 ),GATE || Tree | Graph || PYQS (2010 to 2025)