a)
program Y_a;
uses crt;
var A:array [1..500] of integer;
n,i,T: integer;
Begin
clrscr;
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('A[',i,']='); readln(A[i]);
if A[i]>0 then T:=T+A[i];
end;
write('T = ',T);
readln
End.
b)
program Y_b;
uses crt;
var A:array [1..10] of integer;
i: integer;
Begin
clrscr;
for i:=1 to 5 do
begin
write('A[',i,']='); readln(A[i]);
end;
write('Cac phan tu co gia tri chan: ');
for i:=1 to 5 do
if A[i] mod 2=0 then write(A[i],' ');
readln
End.