| 1 | 2 | 3 | 4 |
| 1 | 2 | 3 | |
| 1 | 2 | ||
| 1 | |||
| 4 | |||
| 4 | 3 | ||
| 4 | 3 | 2 | |
| 4 | 3 | 2 | 1 |
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int i,j,n;
cout<<"Enter last number in the first row: ";
cin>>n;
for(i=n;i>=1;i--)
{
for(j=1;j<=i;j++)
cout<<j<<" ";
cout<<"\n";
}
for(i=n;i>=1;i--)
{
for(j=n;j>=i;j--)
cout<<j<<" ";
cout<<"\n";
}
getch();
}