Tugas for1

#include
void main()
{
int a,b,c,d,e;

cout<<"Masukkan angka : ";cin>>a;
e=a-1;

for (b=1;b<=e;b++)
{
a--;
for (c=a;c>=1;c--)
cout< cout< for (d=1;d<=b;d++)
cout<<" ";
}
cout<}