[C++] [Array example]

//Array with procedure
#include<iostream.h>
#include<conio.h>
int A[100], i, j, n, d , dem;
void Nhap(void)
{
    clrscr( );
    cout<<"Input the number of the elements: ";
    cin>>n;
    for (i=1;i<=n;i++)
    {
        cout<<"Input the element number "<<i<<": ";
        cin>>A[i];
    }
    clrscr( );
    for (i=1;i<=n;i++)
        cout<<A[i]<<" ";
    cout<<endl;
}
int Nt(int m)
{
    int dem=0, j;
    for (j=1;j<=m;j++)
        if (m%j==0) dem++;
    if (dem==2) return 1;
        else return 0;
}
int Cp(int m)
{
    int j;
    for (j=1;j<=m;j++)
        if (j*j==m) return 1;
}
int Hh(int m)
{
    int j, S=0;
    for (j=1;j<m;j++)
        if (m%j==0) S=S+j;
    if (S==m) return 1;
       else return 0;
}

void Find_Number(void)
{
    dem=0;
    cout<<"Prime number: ";
    for (i=1;i<=n;i++)
        if (Nt(A[i])==1)
        {
            dem++;
            cout<<A[i]<<" ";
        }
    if (dem==0) cout<<"None!";
    cout<<endl;
    dem=0;
    cout<<"Square number: ";
    for (i=1;i<=n;i++)
        if (Cp(A[i])==1)
        {
            dem++;
            cout<<A[i]<<" ";
        }
    if (dem==0) cout<<"None!";
    cout<<endl;
    dem=0;
    cout<<"Perfect number: ";
    for (i=1;i<=n;i++)
        if (Hh(A[i])==1)
        {
            dem++;
            cout<<A[i]<<" ";
        }
    if (dem==0) cout<<"None!";
    cout<<endl;
}
main( )
{
    Nhap( );
    Find_Number( );
    getch( );
    return 0;
}