Compilare: user.cpp: In function ‘void compute_D()’: user.cpp:23: warning: array subscript has type ‘char’ user.cpp: In function ‘void Boyer_Moore()’: user.cpp:38: warning: array subscript has type ‘char’ user.cpp:39: warning: array subscript has type ‘char’ user.cpp: In function ‘int main()’: user.cpp:46: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result