Compilare: main.cpp: In function 'void dijkstra()': main.cpp:41:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<graf>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int i=0; i<G[u].size(); i++) | ~^~~~~~~~~~~~ main.cpp: In function 'int minDist()': main.cpp:27:12: warning: 'nod_min' may be used uninitialized in this function [-Wmaybe-uninitialized] 27 | return nod_min; | ^~~~~~~ main.cpp: In function 'void dijkstra()': main.cpp:44:22: warning: 'nod_min' may be used uninitialized in this function [-Wmaybe-uninitialized] 44 | if(dist[u] + v.cost < dist[v.dest] && spt[v.dest] == false) | ~~~~~~^