Compilare: main.cpp: In function 'void Dijkstra()': main.cpp:25:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<edge[node].size(); i++){ ~^~~~~~~~~~~~~~~~~~ main.cpp:24:21: warning: unused variable 'cost' [-Wunused-variable] long double cost = pq.top().first; ^~~~ main.cpp: In function 'int main()': main.cpp:43:28: warning: unused variable 'j' [-Wunused-variable] int V, E,src, dest, i, j, k; ^ main.cpp:43:31: warning: unused variable 'k' [-Wunused-variable] int V, E,src, dest, i, j, k; ^