Compilare: main.cpp: In function 'int main()': main.cpp:37:66: warning: comparison of integer expressions of different signedness: 'int' and 'std::multiset<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | while (s.size() != 0 && (untilRow[i][lastNotRemoved] < s.size() | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~ main.cpp:38:29: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'const int' [-Wsign-compare] 38 | || s.size() > (*s.begin()))) | ~~~~~~~~~^~~~~~~~~~~~~~