Compilare: main.cpp: In function 'void dfs1(int)': main.cpp:32:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | for( int i = 0; i < g[nod].size(); ++i ) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int)': main.cpp:42:23: 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 < gt[nod].size(); ++i ) | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:65:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 65 | for( int i = 0; i < ctc.size(); ++i ) | ~~^~~~~~~~~~~~ main.cpp:67:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for( int j = 0; j < ctc[i].size(); ++j ) | ~~^~~~~~~~~~~~~~~