Compilare: main.cpp: In function 'int dijkstra(int)': main.cpp:28:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<HeapNode, std::allocator<HeapNode> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for( int i = 0; i < muchie[nod].size(); i++ ){ | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:27: warning: 'sol2' may be used uninitialized [-Wmaybe-uninitialized] 67 | out << sol1 << " " << sol2; | ^~~~ main.cpp:55:39: note: 'sol2' was declared here 55 | int sol1 = dijkstra( k ), st, dr, sol2; | ^~~~