Compilare: main.cpp: In function 'void dfs1(int)': main.cpp:13:19: 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<gd[nod].size();i++) { | ~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:24:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 24 | for (int i=0;i<gt[nod].size();i++) { | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:49:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for (int j=0;j<sol[i].size();j++) | ~^~~~~~~~~~~~~~