Compilare: user.cpp: In function ‘char Solve(char, char, char, char, char, char)’: user.cpp:38:11: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(M[a][nb][b][c][d] != 0) ^ user.cpp:38:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(M[a][nb][b][c][d] != 0) ^ user.cpp:38:18: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(M[a][nb][b][c][d] != 0) ^ user.cpp:38:21: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(M[a][nb][b][c][d] != 0) ^ user.cpp:38:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(M[a][nb][b][c][d] != 0) ^ user.cpp:39:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] return M[a][nb][b][c][d]; ^ user.cpp:39:23: warning: array subscript has type ‘char’ [-Wchar-subscripts] return M[a][nb][b][c][d]; ^ user.cpp:39:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] return M[a][nb][b][c][d]; ^ user.cpp:39:29: warning: array subscript has type ‘char’ [-Wchar-subscripts] return M[a][nb][b][c][d]; ^ user.cpp:39:32: warning: array subscript has type ‘char’ [-Wchar-subscripts] return M[a][nb][b][c][d]; ^ user.cpp:54:12: warning: array subscript has type ‘char’ [-Wchar-subscripts] M[a][nb][b][c][d] = 1; ^ user.cpp:54:16: warning: array subscript has type ‘char’ [-Wchar-subscripts] M[a][nb][b][c][d] = 1; ^ user.cpp:54:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] M[a][nb][b][c][d] = 1; ^ user.cpp:54:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] M[a][nb][b][c][d] = 1; ^ user.cpp:54:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] M[a][nb][b][c][d] = 1; ^ user.cpp:64:17: warning: array subscript has type ‘char’ [-Wchar-subscripts] M[a][nb][b][c][d] = 1; ^ user.cpp:64:21: warning: array subscript has type ‘char’ [-Wchar-subscripts]