Compilare: main.cpp: In function 'int main()': main.cpp:54:23: warning: comparison of integer expressions of different signedness: 'std::priority_queue<str>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare] 54 | if (pq.size() < k) | ~~~~~~~~~~^~~ main.cpp:74:19: warning: 'psol' may be used uninitialized in this function [-Wmaybe-uninitialized] 74 | for (i = 0; i < psol; i++) | ~~^~~~~~