Compilare: main.cpp: In function 'void solve()': main.cpp:67:26: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 67 | if (mc[i].size() == n - 1) | ~~~~~~~~~~~~~^~~~~~~~ main.cpp:83:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for (long long i = 0; i < pt.size(); i++) | ~~^~~~~~~~~~~ main.cpp:64:15: warning: 'unu' may be used uninitialized [-Wmaybe-uninitialized] 64 | long long unu; | ^~~