Explanation: The diagram above shows the initial binary tree and the binary tree after changing the value of each node. - Node with value 5 does not have any cousins so its sum is 0. - Node with value ...

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Given a Binary Tree A consisting of N nodes. You need to find all the cousins of node B. NOTE: Siblings should not be considered as cousins. Try to do it in single traversal. You can assume that Node ...