Compilare: user.cpp: In function ‘void init(unsigned char*, unsigned int, char, char)’: user.cpp:13:6: warning: array subscript has type ‘char’ [-Wchar-subscripts] SZ[k][l] = 0; ^ user.cpp:13:9: warning: array subscript has type ‘char’ [-Wchar-subscripts] SZ[k][l] = 0; ^ user.cpp:15:7: warning: array subscript has type ‘char’ [-Wchar-subscripts] SZ[k][l] = 1, h[1] = 0; ^ user.cpp:15:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] SZ[k][l] = 1, h[1] = 0; ^ user.cpp:18:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] h[++SZ[k][l]] = x % 10; ^ user.cpp:18:14: warning: array subscript has type ‘char’ [-Wchar-subscripts] h[++SZ[k][l]] = x % 10; ^ user.cpp: In function ‘void add(unsigned char*, unsigned char*, char, char, char, char)’: user.cpp:26:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (SZ[k1][l1] > SZ[k2][l2]) ^ user.cpp:26:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (SZ[k1][l1] > SZ[k2][l2]) ^ user.cpp:26:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (SZ[k1][l1] > SZ[k2][l2]) ^ user.cpp:26:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (SZ[k1][l1] > SZ[k2][l2]) ^ user.cpp:28:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (i = SZ[k2][l2] + 1; i <= SZ[k1][l1]; ++i) ^ user.cpp:28:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (i = SZ[k2][l2] + 1; i <= SZ[k1][l1]; ++i) ^ user.cpp:28:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (i = SZ[k2][l2] + 1; i <= SZ[k1][l1]; ++i) ^ user.cpp:28:42: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (i = SZ[k2][l2] + 1; i <= SZ[k1][l1]; ++i) ^ user.cpp:30:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] else if (SZ[k1][l1] < SZ[k2][l2]) ^ user.cpp:30:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] else if (SZ[k1][l1] < SZ[k2][l2]) ^