What file do you want to read? graph4.txt Vertices: [a, b, s, c, d, t, e, f] Edges: a -> b: 24 b -> t: 19 b -> d: 2 s -> e: 14 s -> f: 15 s -> a: 9 c -> b: 6 c -> t: 6 d -> c: 11 d -> t: 16 e -> f: 5 e -> d: 30 e -> b: 18 f -> t: 44 f -> d: 20 Visiting vertex s Updating dist[a] from 999999 to 9 Updating dist[e] from 999999 to 14 Updating dist[f] from 999999 to 15 Visiting vertex a Updating dist[b] from 999999 to 33 Visiting vertex e Updating dist[b] from 33 to 32 Updating dist[d] from 999999 to 44 Visiting vertex f Updating dist[t] from 999999 to 59 Updating dist[d] from 44 to 35 Visiting vertex b Updating dist[t] from 59 to 51 Updating dist[d] from 35 to 34 Visiting vertex d Updating dist[c] from 999999 to 45 Updating dist[t] from 51 to 50 Visiting vertex c Visiting vertex t Shortest path is: s e b d t Distance is: 50 Final dist map: a: 9 b: 32 s: 0 c: 45 d: 34 t: 50 e: 14 f: 15 Final prev map: a: s b: e s: undefined c: d d: b t: d e: s f: s