need following output in c++

#include <iostream>

using namespace std;

int main(void)
{
	int i(0),j(0),n(0);
	int index(1);
	cout<<"Enter no. of rows: ";
	cin>>n;
	for(i=1;i<n+1;i++)
	{
		for(j=1;j<n-i+1;j++)
		{
			cout<<" ";
		}
		for(j=1;j<i+1;j++)
		{
			cout<<i<<" ";
		}
		cout<<endl;
	}
	cout<<endl;
	//End of Program 1
	for(i=0;i<n;i++)
	{
		//Weird space indent in 2nd right triangle. Still...
		for(j=0;j<5;j++)
		{
			cout<<" ";
		}
		for(j=0;j<i+1;j++)
		{
			cout<<(index%10);
			index++;
		}
		cout<<endl;
	}
	cout<<endl;
	//End of Program 2
	for(i=1;i<n+1;i++)
	{
		for(j=1;j<n-i+1;j++)
		{
			cout<<" ";
		}
		for(j=i;j>0;j--)
		{
			cout<<(j&1);
		}
		cout<<endl;
	}
	//End of Program 3, your second right angle.
	return 0;
}