#include <iostream>
#include <math.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/random.h>
using namespace std;

int main(){
	double numbers[1000000];
	getrandom(numbers, sizeof(numbers), 0);
	for(int i = 0; i < 1000000; i++)
		numbers[i] = sin(numbers[i]);

	struct rusage our_rusage;
	getrusage(RUSAGE_SELF, &our_rusage);
	cout << "We have used " << our_rusage.ru_utime.tv_sec << " seconds and " 
		<< our_rusage.ru_utime.tv_usec << " microseconds" << endl;

	getrusage(RUSAGE_SELF, &our_rusage);
	cout << "Now we have used " << our_rusage.ru_utime.tv_sec << " seconds and " 
		<< our_rusage.ru_utime.tv_usec << " microseconds" << endl;
	return 0;
}