OpenMP C++ (trouble with compliling) - c++

Question

I decided to calculate e as the sum of rows to get 2.718....
Well my code without OpenMP works perfectly and I measured the time which it is taking for calculations. When I used OpenMP to parralelize my calculation however, I got an error. I am running my program on core i7(8 cores 4 logic and 4 physical). As people say I must get a time twice as fast without using openMP. Below is my code:
#include <iostream>
#include <time.h>
#include <math.h>
#include "fact.h"
#include <cstdlib>;
#include <conio.h>;
using namespace std;
int main()
{
clock_t t1,t2;
int n;
long double exp=0;
long double y;
int p;
cout<<"Enter n:";
cin>>n;
t1=clock();
#pragma omp parallel for num_threads(2);
for(int i=1; i<n; i++)
{
p=i+1;
exp=exp+(1/((fact(p))));
}
t2=clock();
double total_clock;
total_clock=t2-t1;
long double total_exp;
total_exp=exp+2;
cout<<total_clock<<"\n the time is used for parralel calculations"<<endl;
cout<<total_exp<<endl;
cin.get();
getch();
return 0;
}
Fact() using function to calculate factorial of the number
long double fact(int N)
{
if(N < 0)
return 0;
if (N == 0)
return 1;
else
return N * fact(N - 1);
}
Error 3 error C3005: ;: unexpected token in directive OpenMP "parallel for" c:\users\александр\documents\visual studio 2012\projects\consoleapplication1\consoleapplication1\openmp.cpp 18

Answer 1

When using openmp pragmas, semicolons are not needed, hence:
"#pragma omp parallel for num_threads(2);"
should be "#pragma omp parallel for num_threads(2)"
without the ;