Eroare de compilare: main.cpp: In function 'void BFS()': main.cpp:37:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int i = 0; i < L[nod].size(); i ++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:56:5: error: 'solve' was not declared in this scope 56 | solve(); | ^~~~~ Non zero exit status: 1