Compilare: main.cpp: In function 'void DFSap(int, int)': main.cpp:39:9: warning: unused variable 'children' [-Wunused-variable] 39 | int children = 0; | ^~~~~~~~ main.cpp: In function 'int main()': main.cpp:80:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for (int i = 0; i < allBcc.size(); ++i) | ~~^~~~~~~~~~~~~~~ main.cpp:82:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | for (int j = 0; j < allBcc[i].size(); ++j) | ~~^~~~~~~~~~~~~~~~~~