Compilare: main.cpp: In function 'int main()': main.cpp:29:11: warning: array subscript has type 'char' [-Wchar-subscripts] 29 | fa[a[i]]++; | ~~~^ main.cpp:30:11: warning: array subscript has type 'char' [-Wchar-subscripts] 30 | fb[b[i]]++; | ~~~^ main.cpp:47:22: warning: array subscript has type 'char' [-Wchar-subscripts] 47 | out<<1+nra*fa[a[l]]+nrb*fb[a[l]]<<'\n'; | ~~~^ main.cpp:47:35: warning: array subscript has type 'char' [-Wchar-subscripts] 47 | out<<1+nra*fa[a[l]]+nrb*fb[a[l]]<<'\n'; | ~~~^