Compilare: main.cpp: In function 'bool bfs()': main.cpp:27:10: warning: unused variable 'found' [-Wunused-variable] 27 | bool found = 0; | ^~~~~ main.cpp: In function 'int main()': main.cpp:157:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 157 | for (int i = 0; i < ans.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:66:8: warning: unused variable 'bottleneck' [-Wunused-variable] 66 | ll bottleneck = 0; | ^~~~~~~~~~