Consiglio pseudocodice

Salve ragazzi,

dovrei scrivere lo speudocodice dell’algoritmo di Dijkstra:

` 1 function Dijkstra(Graph, source):
2 for each vertex v in Graph: // Initializations
3 dist[v] := infinity // Unknown distance function from source to v
4 previous[v] := undefined // Previous node in optimal path from source
5 dist[source] := 0 // Distance from source to source
6 Q := the set of all nodes in Graph
// All nodes in the graph are unoptimized – thus are in Q
7 while Q is not empty: // The main loop
8 u := vertex in Q with smallest dist[]
9 if dist = infinity:
10 break // all remaining vertices are inaccessible from source
11 remove u from Q
12 for each neighbor v of u: // where v has not yet been removed from Q.
13 alt := dist + dist_between(u, v)
14 if alt < dist[v]: // Relax (u,v,a) 15 dist[v] := alt 16 previous[v] := u 17 return previous[] ` cosa mi consigliate di usare!? thanks!