백준 [ALGORITHM] - 별 찍기 - 7 (2444)

n = int(input())

for i in range(1, n+1):
    if i <= n:
        for k in range(n-i):
            print(' ', end='')
        for j in range(2*i-1):
            print('*', end='')
    print()
for q in range(n-1,0,-1):
    for p in range(i-q):
        print(' ', end='')
    for u in range(q*2-1):
        print('*', end='')
    print()