#include<iostream.h>
#include<conio.h>
void main()
{
	int a[13], i, j, n;
	clrscr();
	cout<<"Enter the no oflevels of the triangle: ";
	cin>>n;
	cout<<"\n\n";
	for(i=0; i<=n; i++)
	{

		a[i]=1;
		for(j=0;j<=i;j++)
			cout<<a[j]<<"\t";
		for(j=i;j>=1;j--)
			a[j]=a[j]+a[j-1];
			cout<<"\n\n";

	}
cout<<"\n\t Written By: Sujit Kr Nayak\n\t Roll No: ELD09006";
getch();
}