Compilare: main.cpp: In function 'int main()': main.cpp:96:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 96 | for (i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~ main.cpp: In function 'void Bfs(int)': main.cpp:48:12: warning: 'S' may be used uninitialized in this function [-Wmaybe-uninitialized] 48 | while (t[S] != -1) | ^