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Data Structures for Coding Interviews in C#

Challenge 7: Check if an Undirected Graph is Tree or Not

Explore how to identify whether an undirected graph is a tree by learning to verify key properties such as no cycles and full connectivity. Develop skills to implement the isTree function in C# which helps distinguish trees from general graphs in coding interviews.

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Problem statement

The next section will tackle the tree data structure. For now, here’s the basic difference between a graph and a tree. A graph can only be a tree under two conditions:

  • There are no cycles.
  • The graph is connected.
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