Răspuns: cu FOR
#include <iostream>
using namespace std;
int main()
{
int i,j,n;
cout<<"n= " ;cin>>n;
for(i=n;i>=1;i--)
{ for(j=0;j<i;j++)
cout<<i-j<<" ";
cout<<endl;}
}
Explicație: cu WHILE SI IF
#include <iostream>
using namespace std;
int main()
{
int n,k;
cout << "n= " ; cin>>n;
k=n;
while (k>=1)
{
cout<<k <<" ";
k--;
if(k==0) {cout<<endl; k=n-1; n--;};
}
return 0;
}