Bài 1:
program tinh_tong;
uses crt;
var A:array[1..100] of integer;
n,i,t:integer;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
t:=0;
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(A[i]);
t:=t+A[i];
end;
write('Tong cac phan tu cua day la: ',t);
readln;
end.
Bài 2:
program tinh_tong;
uses crt;
var A:array[1..100] of integer;
n,i,t:integer;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
t:=0;
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(A[i]);
if (A[i] mod 2=0) or (A[i] mod 7=0) then t:=t+A[i];
end;
write('Tong cac phan tu chia het cho 2 hoac cho 7 cua day la: ',t);
readln;
end.
