Compilare: user.cpp: In function ‘void Letter(long long int, long long int, bool)’: user.cpp:30:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount = sum[p][flip(vipCh)]; ^ user.cpp:35:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount = sum[p][vipCh]; ^ user.cpp:50:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += flipped ? sum[n][vipCh] : sum[n][flip(vipCh)]; ^ user.cpp:50:63: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += flipped ? sum[n][vipCh] : sum[n][flip(vipCh)]; ^ user.cpp:59:31: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += sum[n][vipCh] + sum[n][flip(vipCh)]; ^ user.cpp:59:53: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += sum[n][vipCh] + sum[n][flip(vipCh)]; ^ user.cpp:68:41: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += flipped ? sum[n][vipCh] + 2 * sum[n][flip(vipCh)] : 2 * sum[n][vipCh] + sum[n][flip(vipCh)]; ^ user.cpp:68:67: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += flipped ? sum[n][vipCh] + 2 * sum[n][flip(vipCh)] : 2 * sum[n][vipCh] + sum[n][flip(vipCh)]; ^ user.cpp:68:87: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += flipped ? sum[n][vipCh] + 2 * sum[n][flip(vipCh)] : 2 * sum[n][vipCh] + sum[n][flip(vipCh)]; ^ user.cpp:68:109: warning: array subscript has type ‘char’ [-Wchar-subscripts] vipChCount += flipped ? sum[n][vipCh] + 2 * sum[n][flip(vipCh)] : 2 * sum[n][vipCh] + sum[n][flip(vipCh)]; ^ user.cpp: In function ‘int main()’: user.cpp:84:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum[i][ch] = sum[i - 1][ch] + (s[i] == ch); ^ user.cpp:84:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum[i][ch] = sum[i - 1][ch] + (s[i] == ch); ^ user.cpp:86:13: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum[i][ch] = sum[i - 1][ch] + (s[i] == ch); ^ user.cpp:86:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] sum[i][ch] = sum[i - 1][ch] + (s[i] == ch); ^