Compilare: main.cpp: In function 'int main()': main.cpp:30:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int j = 0;j < tmp.size();++j) | ~~^~~~~~~~~~~~ main.cpp:33:38: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 33 | if(av.size() > k) | ~~~~~~~~~~^~~