Compilare: main.cpp: In function 'void dfs(int, char*, std::vector<int>*, std::vector<int>&)': main.cpp:13:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for (int i = 0; i < v[nod].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:75:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | for (int i = 0; i < badnodes.size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:68:9: warning: unused variable 'nr' [-Wunused-variable] 68 | int nr = n; | ^~