Compilare: main.cpp: In function 'void bfs(int, int)': main.cpp:49:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int i = 0; i < graph[node].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:139:8: warning: 'mstart' may be used uninitialized in this function [-Wmaybe-uninitialized] 139 | bfs(nodestart, mstart); | ~~~^~~~~~~~~~~~~~~~~~~ main.cpp:139:8: warning: 'nodestart' may be used uninitialized in this function [-Wmaybe-uninitialized]