Compilare: main.cpp: In function 'void lee()': main.cpp:36:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | for(int f = 0 ; f < m[nod].size() ; f ++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:45:12: warning: unused variable 's' [-Wunused-variable] 45 | int q, s ; | ^