#include <iostream>
#include <stdio.h>
#include <fstream>
#include <math.h>
#pragma warning( disable : 4996 )
using namespace std;

double f(int r , double x)
{
	return r * x * (1 - x);
}

int main()
{
	char filename[100];
	for (int r = 1; r <= 4; r++)
	{
		sprintf(filename, "data%d.txt", r);
		int n = 0;
		FILE* FL;
		FL = fopen(filename, "w");
		double x0 = 0.1;
		double x00 = 0.2;
		double x000 = 0.3;
		double x0000 = 0.4;

		for (n; n <= 10; n++) {
			fprintf(FL, "%d  %f  %f  %f  %f \n", n, f(r, x0), f(r, x00), f(r, x000), f(r, x0000));
			double x1 = f(r, x0), x11 = f(r, x00), x111 = f(r, x000), x1111 = f(r, x0000);
			x0 = x1, x00 = x11, x000 = x111, x0000 = x1111;
		}

		fclose(FL);
	}
}