#include <QCoreApplication>
#include <iostream>
#include <omp.h>
#include <QtMath>
using namespace std;
int main()
{
    const double h = 0.0005;//шаг
    const int N = 4000;//число отрезков сетки
    double res = 0;
#pragma omp parallel for reduction(+: res)
        for(int i=0;i<N;i++)
        {
            double x = i*h;
            res+=16*exp(x)/((2+x*x)*(2+x*x));
        }
            res*=h;
        cout<<res<<endl;
        cout<<"OpenMP testing.."<<endl;

#if defined(_OPENMP)
   cout<<"OpenMP is done"<<endl;
#endif
    return 0;
}