Compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:23: 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[nod].size() ; i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfst(int, std::vector<int>&)': main.cpp:29:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int i = 0 ; i < gt[nod].size() ; i++) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:66:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | for(int i = 0 ; i < ans.size() ; i++) | ~~^~~~~~~~~~~~ main.cpp:68:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 68 | for(int j = 0 ; j < ans[i].size() ; j++) | ~~^~~~~~~~~~~~~~~