Compilare: user.cpp: In function ‘void DFS(int, int, int)’: user.cpp:28:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] DFS (line + Di[Dir[position+0]], column + Dj[Dir[position+0]], position + 0); ^ user.cpp:28:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] DFS (line + Di[Dir[position+0]], column + Dj[Dir[position+0]], position + 0); ^ user.cpp:31:39: warning: array subscript has type ‘char’ [-Wchar-subscripts] DFS (line + Di[Dir[position+1]], column + Dj[Dir[position+1]], position + 1); ^ user.cpp:31:69: warning: array subscript has type ‘char’ [-Wchar-subscripts] DFS (line + Di[Dir[position+1]], column + Dj[Dir[position+1]], position + 1); ^ user.cpp: In function ‘int main()’: user.cpp:38:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("cobai.in" ,"r", stdin ); ^ user.cpp:39:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("cobai.out","w", stdout); ^ user.cpp:41:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d %d", &N, &M); ^ user.cpp:45:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%s", A[i] + 1); ^ user.cpp:64:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%s", Dir + 1); ^