Compilare: main.cpp: In function 'long long int compute(int)': main.cpp:47:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int i=0; i<vp[nc/2+1].size(); ++i) { | ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:78:21: warning: comparison of integer expressions of different signedness: 'std::set<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 78 | while (pos.size() < k && na>0) { | ~~~~~~~~~~~^~~