Compilare: main.cpp: In function 'void bfs()': main.cpp:56:51: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for (int i = 0; i < sir.length(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:140:59: warning: 'e' may be used uninitialized [-Wmaybe-uninitialized] 140 | suma += (v[i].cost - 2000 * e); | ~~~~~^~~ main.cpp:133:37: note: 'e' was declared here 133 | int e; | ^