Data Structures | Tree Traversals | Question 3

The inorder and preorder traversal of a binary tree are d b e a f c g and a b d e c f g, respectively. The postorder traversal of the binary tree is:
(A) d e b f g c a
(B) e d b g f c a
(C) e d b f g c a
(D) d e f g b c a


Answer: (A)

Explanation: Below is the given tree.

                              a
                           /    \
                        /          \
                      b             c
                   /   \          /   \
                 /       \      /       \
               d         e    f          g

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