Algorithm designing graph theory

I am HRAMCHI Hamza I am 21 years old from Goulmima, a student at the Faculty of Science and Technology, Department: Software Engineering. I studied a module called: Graph Theory, which consists of the problems I stated above. The question that arises is what is the algorithm that allows us for example to manage the crenals of a school to know that the same student should not have one or more sessions in the same area, and the same for the reservation in hosts. Here I am HRAMCHI Hamza, student at the Faculty of Science and Technology, Department: Software Engineering. I studied a module called: Graph Theory, which consists of the problems I stated above. That's why I came up with creating a C lanagae algorithm using data structures to solve the declared problem. So, I'm telling you that I have manipulated and compiled the algorithm and it works very well.