Compilare: user.cpp: In function ‘int main()’: user.cpp:45:25: warning: array subscript has type ‘char’ [-Wchar-subscripts] while(v[j]) ap[v[j++]]=1; ^ user.cpp:49:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(ap[j]) ++nx, x[nx]=j, cx[nx]=nx+8; ^ user.cpp:50:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(i=1;i<=nx;++i) ap[x[i]]=cx[i]; ^ user.cpp:52:10: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(ap[j]) ++ny, y[ny]=j, cy[ny]=ny; ^ user.cpp:53:28: warning: array subscript has type ‘char’ [-Wchar-subscripts] for(i=1;i<=ny;++i) ap[y[i]]=cy[i]; ^ user.cpp:62:35: warning: array subscript has type ‘char’ [-Wchar-subscripts] if(v[k]>'Z') w[i]=w[i]+ap[v[k]]*p[k], ++k; ^ user.cpp:65:34: warning: array subscript has type ‘char’ [-Wchar-subscripts] w[i]=w[i]+ap[v[k]]*p[k], ++k; ^