1vertices(g) = 0 1 2 3 4 2vertex id: 0 3out-edges: (0,1) (0,2) (0,3) (0,4) 4in-edges: (2,0) (3,0) (4,0) 5adjacent vertices: 1 2 3 4 6 7vertex id: 1 8out-edges: 9in-edges: (0,1) (3,1) (4,1) 10adjacent vertices: 11 12vertex id: 2 13out-edges: (2,0) (2,4) 14in-edges: (0,2) 15adjacent vertices: 0 4 16 17vertex id: 3 18out-edges: (3,0) (3,1) (3,4) 19in-edges: (0,3) 20adjacent vertices: 0 1 4 21 22vertex id: 4 23out-edges: (4,0) (4,1) 24in-edges: (0,4) (2,4) (3,4) 25adjacent vertices: 0 1 26 27