| def make_a_pile(n): | |
| """ | |
| Given a positive integer n, you have to make a pile of n levels of stones. | |
| The first level has n stones. | |
| The number of stones in the next level is: | |
| - the next odd number if n is odd. | |
| - the next even number if n is even. | |
| Return the number of stones in each level in a list, where element at index | |
| i represents the number of stones in the level (i+1). | |
| Examples: | |
| >>> make_a_pile(3) | |
| [3, 5, 7] | |
| """ | |
| return [n + 2*i for i in range(n)] | |