Introduction - If you have any usage issues, please Google them yourself
For a school the supermarket, and other units to its distance from different units who go to the supermarket while the frequency is different. Please supermarket location, required to achieve the overall best. Through the design process of the subject, you can deepen our understanding of graph data structure, the realization of certain basic operations, and further understanding and proficiency in the school textbooks of various data structures, learn how to learn the knowledge to solve practical problems, develop the abilities of students.