Compilare: user.cpp: In function ‘void DFS(int, int&)’: user.cpp:24:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < v[nod].size(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:115:43: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0; j < noduri[i].size(); j++) ^ user.cpp:84:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&n,&m); ^ user.cpp:92:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&x,&y); ^