Compilare: main.cpp: In function 'int daijkstra(int, int)': main.cpp:49:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<elem>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int i=0;i<v[nod].size();i++){ | ~^~~~~~~~~~~~~~ main.cpp:63:1: warning: control reaches end of non-void function [-Wreturn-type] 63 | } | ^ main.cpp: In function 'int main()': main.cpp:101:22: warning: 'ans' may be used uninitialized [-Wmaybe-uninitialized] 101 | fout<<best<<" "<<ans; | ^~~ main.cpp:86:9: note: 'ans' was declared here 86 | int ans, mij; | ^~~