Compilare: main.cpp: In function 'int main()': main.cpp:36:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(dim<Max){ ~~~^~~~ main.cpp:48:16: warning: array subscript has type 'char' [-Wchar-subscripts] fr[s[i]]++; ^ main.cpp:89:35: warning: array subscript has type 'char' [-Wchar-subscripts] nr=nr0*fr[change(s[b])]+nr1*fr[s[b]]; ^ main.cpp:89:48: warning: array subscript has type 'char' [-Wchar-subscripts] nr=nr0*fr[change(s[b])]+nr1*fr[s[b]]; ^ main.cpp:91:35: warning: array subscript has type 'char' [-Wchar-subscripts] nr=nr1*fr[change(s[b])]+nr0*fr[s[b]]; ^ main.cpp:91:48: warning: array subscript has type 'char' [-Wchar-subscripts] nr=nr1*fr[change(s[b])]+nr0*fr[s[b]]; ^