What are the difference between graph and trees in c?

Answer 1

Graphs and trees are often used as synonyms for lattices or networks of interlinked nodes. A graph is the more general term and essentially covers all types of lattices and networks including trees, while a tree is a more specific type of graph, not unlike a family tree extending downwards much like the roots of a tree. A binary tree is a typical example of a tree-like graph. Non-tree-like graphs are typically used to model road maps and thus help solve travelling salesman problems, such as finding the shortest or fastest route between a given set of nodes. Real-life computer networks can also be modelled using graphs. And unlike trees which are two-dimensional structures, graphs can be multi-dimensional.