Compilare: main.cpp: In function 'void dfs(int, long long int)': main.cpp:19:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 19 | for(int i=0;i<G[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:25:17: warning: unused variable 'aux' [-Wunused-variable] 25 | int aux=maxi; | ^~~ main.cpp: In function 'int main()': main.cpp:100:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 100 | for(int i=0;i<G[nod].size();i++) | ~^~~~~~~~~~~~~~