ParProg2 (1.2)

// https://drive.google.com/drive/folders/1GK3t7PBsRFQp01ApEmk1wb6Scrw_CFA4?usp=sharing

#include <algorithm>
#include <iostream>
#include <vector>
#include <ctime>
#include <cmath>
#include <ppl.h>
#include <deque>
#include <list>
using namespace std;

#define N 200
#define EPS 1e-9

double fun(double x)
{
	double ans = 0;

	for (int k = 1; k <= max(20, int(20 * fabs(x))); ++k)
		for (int j = 1; j <= max(20, int(20 * fabs(x))); ++j)
		{
			double x_2 = x * x;

			ans += x_2 * (k + j) / (x_2 + k * k * k + j * j * j) * cos(k * x) * sin(j * x);
		}

	return ans;
}

int main()
{
	setlocale(LC_ALL, "Russian");

	//-------------------------------//
	//            ВЕКТОР             //
	//-------------------------------//

	vector<double> vec1(N), vec2(N);

	for (int i = 0; i < N; ++i)
		vec1[i] = vec2[i] = 100 * cos(i + 1);

	auto t_start = clock();

	for_each(vec1.begin(), vec1.end(), [](double &x) { x = fun(x); });

	auto t_end = clock();

	double time1 = 1.0 * (t_end - t_start) / CLOCKS_PER_SEC;

	cout << "Последовательная реализация (вектор): " << time1 << "\n";

	t_start = clock();

	concurrency::parallel_for_each(vec2.begin(), vec2.end(), [](double &x) { x = fun(x); });

	t_end = clock();

	double time2 = 1.0 * (t_end - t_start) / CLOCKS_PER_SEC;

	cout << "Параллельная реализация (вектор): " << time2 << "\n";

	cout << "Разница во времени (вектор): " << time1 / time2 << "\n";

	//-------------------------------//
	//              ДЕК              //
	//-------------------------------//

	deque<double> deq1, deq2;

	for (int i = 0; i < N; ++i)
	{
		deq1.push_back(100 * cos(i + 1));
		deq2.push_back(100 * cos(i + 1));
	}

	t_start = clock();

	for_each(deq1.begin(), deq1.end(), [](double &x) { x =  fun(x); });

	t_end = clock();

	time1 = 1.0 * (t_end - t_start) / CLOCKS_PER_SEC;

	cout << "Последовательная реализация (дек): " << time1 << "\n";

	t_start = clock();

	concurrency::parallel_for_each(deq2.begin(), deq2.end(), [](double &x) { x = fun(x); });

	t_end = clock();

	time2 = 1.0 * (t_end - t_start) / CLOCKS_PER_SEC;

	cout << "Параллельная реализация (дек): " << time2 << "\n";

	cout << "Разница во времени (дек): " << time1 / time2 << "\n";

	//-------------------------------//
	//              ЛИСТ             //
	//-------------------------------//

	list<double> l1, l2;

	for (int i = 0; i < N; ++i)
	{
		l1.push_back(100 * cos(i + 1));
		l2.push_back(100 * cos(i + 1));
	}

	t_start = clock();

	for_each(l1.begin(), l1.end(), [](double &x) { x = fun(x); });

	t_end = clock();

	time1 = 1.0 * (t_end - t_start) / CLOCKS_PER_SEC;

	cout << "Последовательная реализация (лист): " << time1 << "\n";

	t_start = clock();

	concurrency::parallel_for_each(l2.begin(), l2.end(), [](double &x) { x = fun(x); });

	t_end = clock();

	time2 = 1.0 * (t_end - t_start) / CLOCKS_PER_SEC;

	cout << "Параллельная реализация (лист): " << time2 << "\n";

	cout << "Разница во времени (лист): " << time1 / time2 << "\n";

	return 0;
}