Compilare: main.cpp: In function 'void DFS(int)': main.cpp:16:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for(int i = 0; i < G[x].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:42:13: warning: 'cc' may be used uninitialized [-Wmaybe-uninitialized] 42 | fout << cc; | ^~ main.cpp:34:9: note: 'cc' was declared here 34 | int cc; | ^~