Compilare: main.cpp: In function 'int main()': main.cpp:52:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<str>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 52 | if (pq.size() < k) | ~~~~~~~~~~^~~ main.cpp:71:21: warning: 'minn' may be used uninitialized in this function [-Wmaybe-uninitialized] 71 | cout << minn << '\n'; | ^~~~ main.cpp:28:28: warning: 'psol' may be used uninitialized in this function [-Wmaybe-uninitialized] 28 | int n, k, i, last, ck, psol, minn, s = 0, st, dr, mij; | ^~~~