Compilare: main.cpp: In function 'void dijkstra(unsigned int)': main.cpp:21:16: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 21 | for (i=1; i<=n; ++i) | ~^~~ main.cpp:31:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | for (int i=0; i<lista_vecini[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:45:29: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 45 | for (unsigned int i=1; i<=n; ++i) | ~^~~