Compilare: main.cpp: In function 'int main()': main.cpp:50:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i=0; i<ad[top.second].size(); i++){ | ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:68:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for (int i=0; i<ad[top.node].size(); i++){ | ~^~~~~~~~~~~~~~~~~~~~