program lon_nhat;

uses crt;

var A:array[1..100] of integer;

     n,i,max:integer;

begin

       clrscr;

       write('Nhap n: ');   readln(n);

       for i:=1 to n do

              begin

                     write('A[',i,']= ');  readln(A[i]);

              end;

       max:=A[i];

       for i:=2 to n do

              if A[i]>max then max:=A[i];

       write('Phan tu lon nhat la: ',max);

       readln;

end.

uses crt;
var a: array[1..100] of integer;
n,i,max: integer;
begin
clrscr;
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do begin
write('a[',i,']='); readln(a[i]); end;
max:=a[1];
for i:=2 to n do
if max<a[i] then max:=a[i];
writeln('Phan tu co gia tri lon nhat la: ',max);
readln;
end.

đã test mong đc vote!