Compilare: main.cpp: In function 'void dijkstra(int)': main.cpp:37:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for (int i = 0; i < g[node].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp:29:13: warning: unused variable 'dist' [-Wunused-variable] 29 | int dist = costs.begin()->first; | ^~~~