Compilare: main.cpp: In function 'int main()': main.cpp:13:17: warning: array subscript has type 'char' [-Wchar-subscripts] f[ x[i] ]++; ^ main.cpp:28:33: warning: array subscript has type 'char' [-Wchar-subscripts] sol = sol + f[ a[i] ]; ^ main.cpp:29:17: warning: array subscript has type 'char' [-Wchar-subscripts] f[ a[i] ] = b[i]; ^ main.cpp:32:29: warning: array subscript has type 'char' [-Wchar-subscripts] st[i] = i - f[ x[i] ]; ^ main.cpp:33:29: warning: array subscript has type 'char' [-Wchar-subscripts] dr[i] = i + f[ x[i] ]; ^