Compilare: user.cpp: In function ‘void dctc(int)’: user.cpp:21:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < vec[nod].size(); i++){ ^ user.cpp: In function ‘void dfs(int)’: user.cpp:45:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < v[nod].size(); i++){ ^ user.cpp: In function ‘int main()’: user.cpp:65:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < vec[i].size(); j++){ ^ user.cpp:71:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < w[i].size(); j++){ ^ user.cpp:79:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < v[i].size(); j++){ ^ user.cpp:103:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < c[i].size(); j++){ ^ user.cpp:105:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(ii = 0; ii < v[nod].size(); ii++){ ^ user.cpp:118:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < ct[i].size(); j++){ ^