Refer this: http://www.geeksforgeeks.org/full-and-complete-binary-tree-from-given-preorder-and-postorder-traversals/
Try this:
Preorder: 50, 27, 16, 4, 12, 34, 29, 44, 88, 65, 52, 77, 93, 92
Postorder: 12, 4, 16, 29, 44, 34, 27, 52, 77, 65, 92, 93, 88, 50
Inorder: 4,12,16,27,29,34,44,50,52,65,77,88,92,93
now from preorder and inorder try to construct a tree.
50 - root
{4,12,16,27,29,34,44} - left subtree of root
{52,65,77,88,92,93} - right subtree of root and do it recursively you contruct a tree.