Data Structure using C++

please write 3 different codes as graph.c graph.cpp and main.cpp

1) Implement a graph using an edge list, adjacency matrix, or adjacency list structure. The graph much contain an add_edge(), and add_node() function. You may construct your graph in your main function. Once you have constructed your graph you must implement a Breadth first search and execute the breadth on your constructed graph. Display the nodes in the order that they are visited by your breadth first search.