Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:42:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | for(int i = 0; i < v[node].size(); i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'void del()': main.cpp:56:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int j = 0; j < v[i].size(); j++) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:69:30: warning: variable 'componente' set but not used [-Wunused-but-set-variable] 69 | int gr1 = 0, gr2 = 0, i, componente, r; | ^~~~~~~~~~