Compilare: main.cpp: In function 'int main()': main.cpp:58:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for (int i = 0; i < lista[nodCurent].size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:77:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | for (int i = 1; i < sol.size(); ++i) | ~~^~~~~~~~~~~~