Compilare: main.cpp: In function 'int main()': main.cpp:42:16: warning: array subscript has type 'char' [-Wchar-subscripts] fv[s[i]]++; ^ main.cpp:76:16: warning: array subscript has type 'char' [-Wchar-subscripts] a=fv[ch]; ^ main.cpp:77:22: warning: array subscript has type 'char' [-Wchar-subscripts] b=fv[caps(ch)]; ^ main.cpp:95:30: warning: array subscript has type 'char' [-Wchar-subscripts] ss=ss+fv[caps(ch)]; ^ main.cpp:96:25: warning: array subscript has type 'char' [-Wchar-subscripts] else ss=ss+fv[ch]; ^ main.cpp:48:15: warning: unused variable 'lg' [-Wunused-variable] long long lg=k; ^~