Compilare: main.cpp: In function 'void DFS1(int)': main.cpp:26:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i=0; i<graph[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void DFS2(int)': main.cpp:39:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for(int i=0; i<graph_tr[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:87:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 87 | for(int j=0; j<comp[i].size(); j++) | ~^~~~~~~~~~~~~~~