Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:12:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i = 0; i < adj[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:75:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 75 | if(cnt == dvs[i].size()) prim[i]=1; | ~~~~^~~~~~~~~~~~~~~~