Compilare: main.cpp: In function 'int main()': main.cpp:44:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | for (int i = lastEdge[node]; i < l[node].size(); i++) { | ~~^~~~~~~~~~~~~~~~ main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | for (int i = 0; i < sol.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~