// Viet chuong trinh nhap vao mang mot chieu cac so nguyen va xuat ra cac phan tu chan nho hon 20.

#include

#include

#define MAX 100

using namespace std;

void NhapMang(int a[], int n)

{

          for(int i=0; i

          {

                   cout<<"Phan tu thu "<< i <<": ";

                   cin>>a[i];

          }

}

void XuatPTChan(int a[], int n)

{

          int PTChan;

          cout<<"Cac phan tu chan nho hon 20 la: \n";

          for(int i=0; i

                   if ((a[i] % 2 == 0) && (a[i] < 20))

                   {

                             PTChan=a[i];

                             cout<

                   }

}

void main()

{

          int n, a[MAX];

          cout<<"So luong phan tu thuc su: "; cin>>n;

          NhapMang(a,n);

          XuatPTChan(a,n);

          cout<

}