#define _CRT_SECURE_NO_WARNINGS
#include <fstream>
#include <iostream>
#include <istream>
#include <cstdio>
#include <cstdlib>

using namespace std;

int main () {
	setlocale(LC_ALL, "rus");
	char buff [5];
	double mas [240]={NULL};
	double summa=0.0;
	double mo=0.0;
	double dispersion=0.0;
	double delta=0.0;
	double korr[60]={NULL};
	ifstream fin;
	fin.open("c:\\test.txt");
	int i=0;
	fin.getline(buff,9);
	mas[i]=atof(buff);
	while ((buff)&&(!fin.eof())){
		i++;
		fin.getline(buff,9);
		mas[i]=atof(buff);
	}
	for (int i=0; i<60; i++) summa+=mas [i];
	mo=summa/60;
	cout << "Мат. ожидание =" << mo << endl;
	for (int i=0; i<60; i++) dispersion+= (mas[i]-mo)*(mas[i]-mo);
	dispersion=dispersion/60;
	cout << "Дисперсия =" << dispersion << endl;
	delta=sqrt(dispersion);
	cout << "Стандартное отклонение = " << delta << endl;
	cout << (mas[0]-mo)*(mas[59]-mo) << endl;
	for (int m=1; m<60; m++){
		for (int i=0; i<60-m;i++) korr[m]+=(mas[i]-mo)*(mas[i+m]-mo);
		korr[m]=korr[m]/(60-m);
	}
	ofstream graph ("c:\\graph.txt");
	for (int m=1; m<60; m++) graph <<"k(" << m <<")=" <<korr [m] << endl;
	system ("pause");
	return 0;
}