#include <iostream.h>
#include <fstream.h>
#include <stdlib.h>
#include <math.h>

double r[50];
double o[10];
double chi=0;

main(){
  char c;

  ofstream fout;
  fout.open("random.data");

  for(int j =0;j<5;j++)
    {
    for(int i =0;i<10;i++)
      {
	r[j*10+i]=(double)(1+rand()%100)/100; 
	fout << r[j*10+i] << "& ";

      }
    fout << "\\\\" << endl;
    }

  for(int i=0;i<10;i++)
    o[i]=0;

  for(int i =0;i<50;i++)
    o[(int)floor(r[i]*10)]++;

  for(int i=0;i<10;i++)
    {
    cout << i << ": "<< o[i] << " "<< (o[i]-5)*(o[i]-5)/5<< endl;
    chi += (o[i]-5)*(o[i]-5)/5;
    }
  cout << endl << "chi " << chi;

  for(int i=0;i<49;i++)
    if(r[i]<r[i+1])
      cout << "+& ";
else 
  cout << "-& ";

  cout << endl << endl;
  for(int i=0;i<50;i++)
    if(r[i]<0.5)
      cout << "-&";
else
  cout <<"+&";
  cout << endl;
}