How to print the path from root to a specific node in a binary tree??
I want to store the path in a array[] of node*.
can it b done in O(n) or less?
Remember it's not BST.
1
/ \
2 3
/ \ / \
4 5 6 7
/ \ / \ / \ / \
8 9 10 11 12 13 14 15
path of 6 will b 1,3,6.
path of 9 will be 1,2,5,11
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