Compilare: user.cpp: In function ‘int main()’: user.cpp:16:15: warning: NULL used in arithmetic [-Wpointer-arith] while(*p!=NULL){ ^ user.cpp:23:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*(p+1)] += -1*x; ^ user.cpp:24:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[*(p+1)]=1; ^ user.cpp:38:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] v[*p] += x; ^ user.cpp:39:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] ap[*p] = 1; ^ user.cpp:12:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie3.in", "r", stdin); ^ user.cpp:13:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("expresie3.out", "w", stdout); ^