Paralela.cpp

#include <omp.h>
#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <time.h>
#include <vector>
using namespace std;
void mascara(int mask,int n)
{
    if (mask==(1<<(n+1))-1)
        return;
    for (int i = 0; i < n; ++i)
        if(!(mask&(1<<i)))
            for (int j = i+1; j < n; ++j)
                if(!(mask&(1<<j)))
                    mascara(mask | 1<<i | 1<<j,n);
}
int main ()
{
    clock_t t1,t2;
    t1=clock();
    //omp_set_num_threads(2);
    #pragma omp parallel for
    for (int i = 0; i < 4; ++i)
        mascara(1<<12,12);
    t2=clock();
    cout<<endl<<"demoro:"<<(t2-t1)/1000<<endl;

}