Compilare: main.cpp: In function 'bool bfs()': main.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for (int i = 0; i < adiacenta[nod].size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:48:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | for (int i = 0; i < adiacenta[n].size(); ++i) { | ~~^~~~~~~~~~~~~~~~~~~~~