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Print All Paths Of a Binary Tree

In our previous posts, we’ve covered quite a few coding interview questions about string. This time, I’d like to analyze a binary tree problem.

In my opinion, most interview questions about data structures like binary tree, linked list are relatively easier because these data structures have limited ways of operation so that it can’t be too flexible. In other words, with enough practice, you should be able to be familiar with these topics. We’ll explain more soon.
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