#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <math.h>
#include <vector>

using namespace std;

int binary(int, vector<int> &);
void print_vec();

int n = 4;	
int comb = pow(2,n)-1;

std::vector<int> ros(comb);
std::vector<vector<int> > col(n);
	
int main() {
	int number;
	cout << comb <<"\n";
	
	for(int k=0; k<=comb; k++)
	{
		number=k;
		if (number < 0) 
			cout << "That is not a positive integer.\n";
		else 
		{
			//cout << number <<" converted to binary is: ";
			int count1=binary(number, ros);
			while(count1<n)
			{
				ros.push_back(0);
				count1++;
			}
			col.push_back(ros);
			ros.clear();
			cout << endl;
		}
	}
	void print_vect();
	return 0;
}

int binary(int number, vector<int> &ros1) 
{
	
	int remainder,count=1;
	if(number <= 1) 
	{
		count = 0;
		ros1.push_back(number);
		//cout << number;
		count++;
	}
	else
	{
		/* There is a right shift operator */
		remainder = number%2;
		count++;
		binary(number >> 1, ros1);    
		//cout << remainder;
		ros1.push_back(remainder);
	}
	return count;
}

void print_vec()
{
	for(int it=0; it<col.size(); it++)
	{
		for(int itt=0; itt<col[it].size(); itt)
		{
			fprintf(stderr,"Here = %d",col[it][itt]);
		}
	}	
}

vector<char> container;
 
    cout << "i = 0; i++ till 255" << endl;
 
    for(int i = 0; i < 256; i++)
    {
        container.push_back(i);
        cout << '.';
    }
 
    cout << endl << "Printing: ";
 
    for(int i = 0; i < container.size(); i++)
    {
        cout << bitset<numeric_limits<char>::digits>(container[i]) << endl;
    }