program ct;
uses crt;
var A:array[1..1000] of integer;
i,n,x,d:integer;
begin clrscr;
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap A[',i,']: '); readln(A[i]);
end;
write('Nhap x: '); readln(x);
for i:=1 to n do
if x=A[i] then inc(d);
if d<>0 then write(x,' xuat hien trong mang ',d,' lan');
else write(x,' khong xuat hien trong mang');
readln;
end.