Compilare: main.cpp: In function 'void dijkstra()': main.cpp:34:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Node>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int i = 0; i < v[node].size(); ++i) { | ~~^~~~~~~~~~~~~~~~ main.cpp:29:9: warning: unused variable 'cost' [-Wunused-variable] 29 | int cost = pq.top().cost; | ^~~~