Compilare: main.cpp: In function 'void dfs(int)': main.cpp:18:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for(int i=0; i<adc[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(int i=0;i<conex_comp.size();++i) | ~^~~~~~~~~~~~~~~~~~ main.cpp:55:14: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wformat=] 55 | printf("%d\n", conex_comp.size()); | ~^ ~~~~~~~~~~~~~~~~~ | | | | int std::vector<std::vector<int> >::size_type {aka long unsigned int} | %ld main.cpp:56:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int i=0;i<conex_comp.size();++i){ | ~^~~~~~~~~~~~~~~~~~ main.cpp:57:18: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wformat=] 57 | printf("%d ",conex_comp[i].size()); | ~^ ~~~~~~~~~~~~~~~~~~~~ | | | | int std::vector<int>::size_type {aka long unsigned int} | %ld main.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int j=0;j<conex_comp[i].size();++j) | ~^~~~~~~~~~~~~~~~~~~~~