Compilare: main.cpp: In function 'int main()': main.cpp:37:16: warning: array subscript has type 'char' [-Wchar-subscripts] fa[a[i]]++, fb[b[i]]++; ^ main.cpp:37:28: warning: array subscript has type 'char' [-Wchar-subscripts] fa[a[i]]++, fb[b[i]]++; ^ main.cpp:38:15: warning: array subscript has type 'char' [-Wchar-subscripts] d[a[i]][fa[a[i]]] = i; ^ main.cpp:38:24: warning: array subscript has type 'char' [-Wchar-subscripts] d[a[i]][fa[a[i]]] = i; ^ main.cpp:49:16: warning: array subscript has type 'char' [-Wchar-subscripts] fb[b[i]]++; ^ main.cpp:50:26: warning: array subscript has type 'char' [-Wchar-subscripts] x = query (d[b[i]][fb[b[i]]]); ^ main.cpp:50:35: warning: array subscript has type 'char' [-Wchar-subscripts] x = query (d[b[i]][fb[b[i]]]); ^ main.cpp:52:23: warning: array subscript has type 'char' [-Wchar-subscripts] update (d[b[i]][fb[b[i]]] + 1); ^ main.cpp:52:32: warning: array subscript has type 'char' [-Wchar-subscripts] update (d[b[i]][fb[b[i]]] + 1); ^