백준 2446번 python
a = int(input()) cnt = 0 space = 0 space_2 = 2 dec = 1 dec_2 = 3 for i in range(0, a): print(' ' * space, end = '') print('*' * (2 * a - dec)) space += 1 dec += 2 for i in range(0, a - 1): print(' ' * (a - space_2), end = '') print('*' * (a - (a - dec_2))) space_2 += 1 dec_2 += 2