Compilare: main.cpp: In function 'void Fix()': main.cpp:21:20: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 21 | if (low.size() < mid) | ~~~~~~~~~~~^~~~~ main.cpp:23:20: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 23 | if (low.size() > mid) | ~~~~~~~~~~~^~~~~