Compilare: user.cpp: In function ‘void dfs(int, int, int)’: user.cpp:33:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < v[k].size(); i++){ ^ user.cpp: In function ‘bool backoff(int, int, int, int)’: user.cpp:49:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] return false;}for (int i = 0; i < v[nod].size(); i++) ^ user.cpp: In function ‘void what(std::vector<int>&, int, int)’: user.cpp:58:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < g.size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:86:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1 ; i < comp.size() && kill == 0; i++) ^ user.cpp:93:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0 ; i < sol.size(); i++) ^