Compilare: main.cpp: In function 'void dfs(long long int)': main.cpp:97:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 97 | for(int l=0;l<G[k].size();l++) | ~^~~~~~~~~~~~ main.cpp: In function 'void dfs1(long long int)': main.cpp:118:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 118 | for(int l=0;l<G[k].size();l++) | ~^~~~~~~~~~~~