Compilare: main.cpp: In function 'int unite(int, int)': main.cpp:31:1: warning: no return statement in function returning non-void [-Wreturn-type] 31 | } | ^ main.cpp: In function 'int main()': main.cpp:66:26: warning: comparison of integer expressions of different signedness: 'std::priority_queue<int, std::vector<int>, std::greater<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 66 | if(pq.size() < k) pq.push(sz[i]); | ~~~~~~~~~~^~~