Compilare: main.cpp: In function 'int main()': main.cpp:25:15: warning: array subscript has type 'char' [-Wchar-subscripts] f[c[i]]=x; ^ main.cpp:28:22: warning: array subscript has type 'char' [-Wchar-subscripts] a[i]=i-f[r[i]]; ^ main.cpp:29:22: warning: array subscript has type 'char' [-Wchar-subscripts] b[i]=i+f[r[i]]; ^ main.cpp:56:18: warning: array subscript has type 'char' [-Wchar-subscripts] if(f[r[i]]==maxim) ^