Program Tinh_tong; Uses crt; Var i,n,dem: integer; a:array[1..100] of integer; S:real; begin write('nhap n='); readln(n);<br /> for i:=1 to n do<br /> begin<br /> write('a[',i,']='); readln(a[i]); end; dem:=0; for i:=1 to n do if a[i] mod 2 = 0 then dem:=dem+1; S:=S+a[i]; write('so phan tu chan cua day la:'); write(' tong cac so chan la:', S:8:2); readln end.
