Compilare: user.cpp: In function ‘void init()’: user.cpp:22:15: warning: array subscript has type ‘char’ [-Wchar-subscripts] nextLet[let][i] = last; ^ user.cpp: In function ‘void update()’: user.cpp:47:60: warning: array subscript has type ‘char’ [-Wchar-subscripts] for (j = i, k = 2; j <= n && word[k]; j = nextLet[word[k]][j], ++k); ^ user.cpp: In function ‘int main()’: user.cpp:87:11: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> s + 1; ^ user.cpp:98:15: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] fin >> word + 1; ^