program ct;
uses crt;
var A:array[1..1000] of integer;
i,n,d:integer;
S,T:longint;
begin clrscr;
write('Nhap so phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap A[',i,']: '); readln(A[i]);
end;
S:=0; T:=1;
for i:=1 to n do
if A[i] mod 2=1 then
begin
inc(d);
S:=S+A[i];
T:=T*A[i];
end;
writeln;
writeln('Co ',d,' so le');
writeln('Tong la: ',S);
writeln('Tich la: ',T);
if (S mod 2=1) and (T mod 2=1) then write('Du dieu kien')
else write('Khong du dieu kien');
readln;
end.
Học tốt!