#include<iostream>#include<omp.h>intmain(void){#ifdef _OPENMPif(omp_get_max_threads()==2){return0;}else{std::cout<<"Max threads is "<<omp_get_max_threads()<<" not 2."<<std::endl;return1;}#elseprintf("_OPENMP is not defined; is OpenMP compilation working?\n");return1;#endif}