Compilare: user.cpp: In member function ‘void Q::init(long long int)’: user.cpp:51:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] que[poz++] = REST % 10; ^ user.cpp: In member function ‘void Q::print(std::ofstream&)’: user.cpp:60:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] out << (int)que[poz--]; ^ user.cpp: In member function ‘bool Q::add_digit(char)’: user.cpp:66:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] que[position] += d; ^ user.cpp:67:46: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (position >= last_nonz && que[position]) ^ user.cpp:72:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (!que[poz] && poz == last_nonz) ^ user.cpp:76:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (que[position] >= 10) ^ user.cpp:85:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] else if (que[position] < 0) ^ user.cpp:85:13: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] else if (que[position] < 0) ^ user.cpp: In member function ‘bool Q::add_no(long long int)’: user.cpp:125:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (que[poz] == CIFRE[i] && last_ok == poz - 1) ^ user.cpp: In member function ‘bool Q::operator>(const Q&)’: user.cpp:164:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (poz >= 0 && que[poz] == right.que[poz]) poz--; ^ user.cpp:164:53: warning: array subscript has type ‘char’ [-Wchar-subscripts] while (poz >= 0 && que[poz] == right.que[poz]) poz--; ^ user.cpp:165:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (poz >= 0 && que[poz] > right.que[poz]) ^ user.cpp:165:49: warning: array subscript has type ‘char’ [-Wchar-subscripts] if (poz >= 0 && que[poz] > right.que[poz]) ^ user.cpp: In member function ‘char Q::peek()’: user.cpp:180:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] return que[position]; ^ user.cpp: In function ‘void solve(Q&, Q&)’: user.cpp:195:59: warning: array subscript has type ‘char’ [-Wchar-subscripts]