Compilare: main.cpp: In function 'int main()': main.cpp:40:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | for(int i=0; i<dv.size(); i++) | ~^~~~~~~~~~ main.cpp:41:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int j=i+1; j<dv.size(); j++) | ~^~~~~~~~~~