Compilare: main.cpp: In function 'void dfs(int, int, int)': main.cpp:33:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 33 | for(int t = 0 ; t < g[nod].size() ; t++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for(int i = 0 ; i < c.size() ; i++) | ~~^~~~~~~~~~