#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>

int main()
{
	const int N = 4999999;
	double* a = (double*)malloc(N*sizeof(*a));
	double b, c, d;
	int i;

	srand(time(NULL));
	for(i = 0; i < N; ++i) {
		b = (double)rand()/((double)RAND_MAX);
		if(b > 0.5) {
			c = pow(b,1.546);
		} else {
			c = pow(b,0.434232);
		}
		d = cos(c+i);
		a[i] = atan(d);
	}

	return 0;
}