Program menentukan nilai minimum dan maksimum

program min_max;
uses wincrt;
var
a              : array[1..100] of real;
i,n            : integer;
max,min : real;
begin
writeln ('masukkan banyaknya data:'); readln(n);
max:=-9999;
min:=9999;
clrscr;
    for i:=1 to n do begin
    writeln ('data ke: ',i); readln (a[i]);
        if max<(a[i]) then max := (a[i]);
        if min>(a[i]) then min   := (a[i]);
    end;
writeln('nilai maksimum       : ', max:6:2);
writeln('nilai minimum          : ', min:6:2);
end.