Compilare: main.cpp: In function 'void dfs(int)': main.cpp:54:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 54 | for(int i=0;i<L[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'void q2()': main.cpp:79:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for(int i=0;i<L[w.nod].size();i++) | ~^~~~~~~~~~~~~~~~