#include <cs50.h>
#include <stdio.h>
int main(void)
{
int n;
do
{
n = get_int("Length: ");
}
while (n < 1);
int array[n];
array[0] = 1;
for (int i = 1; i < n; i++)
{
array[i] = array[i - 1] * 2;
}
for (int i = 0; i < n; i++)
{
printf("%i\n", array[i]);
}
}