Compilare: user.cpp: In function ‘long long int Add(bool, int)’: user.cpp:53:40: warning: array subscript has type ‘char’ [-Wchar-subscripts] ret = cntFlipped * sum[n][flip(vipCh)] + cntNormal * sum[n][vipCh]; ^ user.cpp:53:68: warning: array subscript has type ‘char’ [-Wchar-subscripts] ret = cntFlipped * sum[n][flip(vipCh)] + cntNormal * sum[n][vipCh]; ^ user.cpp:56:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] ret = (sum[n][vipCh] + sum[n][flip(vipCh)]); ^ user.cpp:56:44: warning: array subscript has type ‘char’ [-Wchar-subscripts] ret = (sum[n][vipCh] + sum[n][flip(vipCh)]); ^ user.cpp: In function ‘long long int Letter(long long int, long long int, bool)’: user.cpp:72:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] return sum[p][vipCh]; ^ user.cpp:77:38: warning: value computed is not used [-Wunused-value] Letter(left, left + lg - 1, caps) + 0 * Add(caps, 1); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ user.cpp:79:48: warning: value computed is not used [-Wunused-value] Letter(left + lg, left + 2 * lg - 1, !caps) + 1 * Add(caps, 2); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ user.cpp:81:45: warning: value computed is not used [-Wunused-value] Letter(left + 2 * lg, right - lg, !caps) + 2 * Add(caps, 3); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ user.cpp:83:40: warning: value computed is not used [-Wunused-value] Letter(right - lg + 1, right, caps) + 3 * Add(caps, 4); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ user.cpp:85:1: warning: control reaches end of non-void function [-Wreturn-type] } ^