Compilare: user.cpp: In function ‘int main()’: user.cpp:34:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] frecv1[sir1[j]]++; ^ user.cpp:36:19: warning: array subscript has type ‘char’ [-Wchar-subscripts] frecv2[sir2[j]]++; ^ user.cpp:41:17: warning: array subscript is above array bounds [-Warray-bounds] if (frecv1[j] != frecv2[j]) ^ user.cpp:41:30: warning: array subscript is above array bounds [-Warray-bounds] if (frecv1[j] != frecv2[j]) ^