Compilare: main.cpp: In function 'void bfs()': main.cpp:30:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i = 0; i < graf[currentNode].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~