Eroare de compilare: user.cpp: In function ‘void DFS(int)’: user.cpp:20:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j=0; j<V[index].size(); j++) ^ user.cpp: In function ‘int main()’: user.cpp:52:4: error: request for member ‘close’ in ‘f’, which is of pointer type ‘FILE* {aka _IO_FILE*}’ (maybe you meant to use ‘->’ ?) f.close(f);f.close(g); ^ user.cpp:52:15: error: request for member ‘close’ in ‘f’, which is of pointer type ‘FILE* {aka _IO_FILE*}’ (maybe you meant to use ‘->’ ?) f.close(f);f.close(g); ^ user.cpp:33:15: warning: unused variable ‘j’ [-Wunused-variable] int x, y, i, j; ^ user.cpp:35:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &N, &M); ^ user.cpp:38:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d ", &x, &y); ^