Compilare: main.cpp: In function 'int main()': main.cpp:72:26: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 72 | if (shows.size() == k && shows.top() <= v[i].first) shows.pop(), ok = true; | ~~~~~~~~~~~~~^~~~ main.cpp:73:31: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 73 | else if (shows.size() < k) ok = true; | ~~~~~~~~~~~~~^~~