Compilare: main.cpp: In function 'int main()': main.cpp:59:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i=0;i<ord.size();i++) | ~^~~~~~~~~~~ main.cpp:63:29: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'll' {aka 'long long int'} [-Wsign-compare] 63 | while(sol.size()<n) | ~~~~~~~~~~^~