Compilare: main.cpp: In function 'int main()': main.cpp:37:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<sheep>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for (i = 0; i < v.size(); ++i) | ~~^~~~~~~~~~ main.cpp:42:28: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 42 | if (ans.size() == v[i].layer) | ~~~~~~~~~~~^~~~~~~~~~~~~