Compilare: user.cpp: In function ‘bool checkwin(char, bool)’: user.cpp:44:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] linie[0] += sum[ a[0][i] ] * sgn * linieOk[0]; ^ user.cpp:45:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] linie[1] += sum[ a[1][i] ] * sgn * linieOk[1]; ^ user.cpp:46:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] linie[2] += sum[ a[2][i] ] * sgn * linieOk[2]; ^ user.cpp:48:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] coloana[0] += sum[ a[i][0] ] * sgn * coloanaOk[0]; ^ user.cpp:49:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] coloana[1] += sum[ a[i][1] ] * sgn * coloanaOk[1]; ^ user.cpp:50:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] coloana[2] += sum[ a[i][2] ] * sgn * coloanaOk[2]; ^ user.cpp:67:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] s += (sum[ a[0][0] ] + sum[ a[1][1] ] + sum[ a[2][2] ])*sgn; ^ user.cpp:67:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] s += (sum[ a[0][0] ] + sum[ a[1][1] ] + sum[ a[2][2] ])*sgn; ^ user.cpp:67:55: warning: array subscript has type ‘char’ [-Wchar-subscripts] s += (sum[ a[0][0] ] + sum[ a[1][1] ] + sum[ a[2][2] ])*sgn; ^ user.cpp:74:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] s += (sum[ a[0][2] ] + sum[ a[1][1] ] + sum[ a[2][0] ])*sgn; ^ user.cpp:74:38: warning: array subscript has type ‘char’ [-Wchar-subscripts] s += (sum[ a[0][2] ] + sum[ a[1][1] ] + sum[ a[2][0] ])*sgn; ^ user.cpp:74:55: warning: array subscript has type ‘char’ [-Wchar-subscripts] s += (sum[ a[0][2] ] + sum[ a[1][1] ] + sum[ a[2][0] ])*sgn; ^