Compilare: main.cpp: In function 'int bfs()': main.cpp:47:35: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 47 | for (int i = 0; i < graf[currentNode].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:29:13: warning: unused variable 'add' [-Wunused-variable] 29 | int add = 0; | ^~~