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Welcome to this new inside code video where we will see the trick to solve almost every binary tree coding problem. Solving binary tree coding problems can be hard and confusing at the beginning because itamp;#39;s quite different from linear data structures as arrays or linked lists. The problem is that a binary tree is a non-linear data structure, so traversing it is totally different from traversing an array for example. And the trick Iamp;#39;m gonna show you is based on the fact that subtrees of a node are also considered as trees, so you can call the same function on them. But, donamp;#39;t forget that subtrees of subtrees are also considered as trees, the same process gets repeated, so our function will be recursive. For example, if we want to get the sum of elements of a binary tree, we have to calculate rootamp;#39;s value, + sum of elements of left subtree, + sum of elements of right subtree. But hereamp;#39;s the recursion in the story, to get elements of subtrees, we h
