program bai_giai;
uses crt;
var A:array[1..1000] of integer;
n,i,t,d,td:integer;
begin
clrscr;
write('Nhap n: '); readln(n);
t:=0; d:=0; td:=0;
for i:=1 to n do
begin
write('A[',i,']= '); readln(A[i]);
t:=t+A[i];
if A[i]>0 then
begin
d:=d+1;
td:=td+A[i];
end;
end;
writeln('a. Tong cac phan tu cua day la: ',t);
writeln('b. Co ',d,' so duong va tong cua chung la: ',td);
readln;
end.