Example worked problems (concise sketches):

Graph theory is a mathematical discipline that focuses on the study of graphs, which are collections of vertices or nodes connected by edges. Graphs can be used to represent relationships between objects, making them a powerful tool for modeling complex systems. Graph theory has a wide range of applications, including:

Trees and Forest: Understanding hierarchical structures used in data compression and network design.

When choosing PDFs look for problem books by authors known for combinatorics/graph theory and algorithm textbooks that include exercises—especially those that explicitly say "problems" or "problem-solving approach."

Advanced topics (brief overviews)