Compilare: user.cpp: In function ‘void printGraph(std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >)’: user.cpp:8: warning: comparison between signed and unsigned integer expressions user.cpp:9: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int dfs(const std::vector<std::vector<int, std::allocator<int> >, std::allocator<std::vector<int, std::allocator<int> > > >&, int, std::vector<bool, std::allocator<bool> >&, std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&, std::vector<int, std::allocator<int> >&)’: user.cpp:28: warning: comparison between signed and unsigned integer expressions user.cpp: In function ‘int main()’: user.cpp:99: warning: comparison between signed and unsigned integer expressions user.cpp:104: warning: comparison between signed and unsigned integer expressions user.cpp:52: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:58: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result