<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Explain in simple terms what is a tree structure in data structures.
<|im_end|>
<|im_start|>assistant
A tree structure in data structures is a hierarchical structure composed of a root node connected to one or more nodes each of which is connected to one or more other nodes. It is a non-linear data structure that allows efficient insertion and retrieval of data.<|im_end|>
