Compilare: user.cpp: In function ‘void BuildDFA()’: user.cpp:27:22: warning: array subscript has type ‘char’ [-Wchar-subscripts] DFA[0][pattern[0]] = 1; ^ user.cpp:32:26: warning: array subscript has type ‘char’ [-Wchar-subscripts] DFA[i][pattern[i]] = i + 1;//equality case ^ user.cpp:33:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] X = DFA[X][pattern[i]];//update X ^ user.cpp: In function ‘void KMP()’: user.cpp:40:27: warning: array subscript has type ‘char’ [-Wchar-subscripts] X = DFA[X][text[c]]; ^