Compilare: main.cpp: In function 'void solve()': main.cpp:53:33: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | for (long long j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:55:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for (long long k = j + 1; k < aux.size(); k++) | ~~^~~~~~~~~~~~ main.cpp:70:37: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | for (long long j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:89:33: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for (long long j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~ main.cpp:91:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (long long k = j + 1; k < aux.size(); k++) | ~~^~~~~~~~~~~~ main.cpp:106:41: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 106 | for (long long k = 0; k < aux.size(); k++) | ~~^~~~~~~~~~~~