Compilare: main.cpp: In function 'int main()': main.cpp:25:28: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<nod>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (ll int i = 0;i<v.size();i++) | ~^~~~~~~~~ main.cpp:41:24: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<nod>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for (ll int i = 0;i<v.size();i++){ | ~^~~~~~~~~