Compilare: main.cpp: In function 'void balance_sets()': main.cpp:22:26: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 22 | while (s_left.size() < target_s_left_size) { | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:31:26: warning: comparison of integer expressions of different signedness: 'std::multiset<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 31 | while (s_left.size() > target_s_left_size) { | ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~