Compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:37:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graph[Stack[Size]].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:70:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d",&N,&M); ^ user.cpp:72:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&v[i].Height); ^ user.cpp:88:21: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d",&K); ^