Eroare de compilare: main.cpp: In function 'bool dfs(int, std::vector<std::vector<int> >&, std::vector<bool>&, std::vector<int>&)': main.cpp:14:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 14 | for (int i = 0; i < bip[u].size(); i++) | ~~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:40:19: error: 'strtok' was not declared in this scope; did you mean 'strtoq'? 40 | char* t = strtok(&s[0], " "); | ^~~~~~ | strtoq Non zero exit status: 1