Compilare: main.cpp: In function 'void solve()': main.cpp:53:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (int j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:55:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (int k = j + 1; k < aux.size(); k++) | ~~^~~~~~~~~~~~ main.cpp:70:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for (int j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:89:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for (int j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:91:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (int k = j + 1; k < aux.size(); k++) | ~~^~~~~~~~~~~~ main.cpp:106:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | for (int k = 0; k < aux.size(); k++) | ~~^~~~~~~~~~~~