Compilare: main.cpp: In function 'int main()': main.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<short int, short int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < G[N].size(); i++) { | ~~^~~~~~~~~~~~~ main.cpp:37:28: warning: comparison of integer expressions of different signedness: 'std::priority_queue<cv>::size_type' {aka 'long unsigned int'} and 'short int' [-Wsign-compare] 37 | if (ans.size() == K) { | ~~~~~~~~~~~^~~~ main.cpp:41:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<short int, short int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for (int i = 0; i < G[pq.top().node].size(); i++) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~