1)
uses crt;
var i,n:longint; a:array[1..1000000]of longint;
begin
clrscr;
write('Nhap n): ');readln(n);
for i:=1 to n do
begin
write('Nhap phan tu thu ',i,': ');readln(a[i]);
end;
write('Cac so le: ');
for i:=1 to n do if a[i] mod 2=1 then write(a[i],' ');
readln
end.
2)
uses crt;
var n:longint;
function gt(a:longint):longint;
var i:longint;
begin
gt:=1;
for i:=1 to a do gt:=gt*i;
end;
begin
clrscr;
write('Nhap n: ');readln(n);
writeln(gt(n));
readln
end.