Compilare: main.cpp: In function 'void dfs(int, int, int)': main.cpp:52:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for (int i=0; i<v[nod].size (); i++) | ~^~~~~~~~~~~~~~~ main.cpp:78:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 78 | for (int i=0; i<v[nod].size (); i++) | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:103:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 103 | for (j=0; j<noduri_lant[i].size (); j++) | ~^~~~~~~~~~~~~~~~~~~~~~~