Compilare: main.cpp: In function 'void testCase()': main.cpp:97:36: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 97 | if (S[aux1].size() == k) | ~~~~~~~~~~~~~~~^~~~ main.cpp:108:36: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 108 | if (S[aux1].size() == k) | ~~~~~~~~~~~~~~~^~~~ main.cpp:118:36: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 118 | if (S[aux2].size() == k) | ~~~~~~~~~~~~~~~^~~~ main.cpp:40:31: warning: unused variable 'aux3' [-Wunused-variable] 40 | int aux1, aux2, maxi = 0, aux3; | ^~~~