[ 2023-03-04 ๐Ÿฆ‘ TIL ]

Burkeyยท2023๋…„ 3์›” 4์ผ
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๋ชฉ๋ก ๋ณด๊ธฐ
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๋ฐฑ์ค€ 2444๋ฒˆ

์ž…๋ ฅํ•œ ์ˆ˜ n์˜ ๊ฐ’์— ๋งž์ถ”์–ด ๋ณ„์„ ์ฐ๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค.

ex)

์ž…๋ ฅ

5

์ถœ๋ ฅ

    *
   ***
  *****
 *******
*********
 *******
  *****
   ***
    *
import sys

input = sys.stdin.readline

n = int(input())
total = (2 * n) - 1

half = total // 2

for i in range(n):
    for j in range(total):
        if (half-i) <= j and j <= (half+i):
            print('*', end='')
        elif j < (half-i): # ์ถœ๋ ฅ ์—๋Ÿฌ ๋ฐฉ์ง€ ๋ณ„ ์ฐ๊ธฐ ์ „๊นŒ์ง€๋งŒ ๋„์–ด์“ฐ๊ธฐ
             print(' ', end='')
    print()

for i in range(1, n):
    for j in range(total):
        if (i) <= j and j < (total-i):
            print('*', end='')
        elif j < i:
            print(' ', end='')
    print()

์œ„์™€ ์•„๋ž˜ ๋‚˜๋ˆ„์–ด์„œ ์ง„ํ–‰ํ•˜์˜€์Šต๋‹ˆ๋‹ค.
( 2 X n ) - 1์˜ ๊ฐ’์„ ๊ฐ€์ง€๊ณ  ๋ณ„์„ ์ฐ๋Š” ๊ทœ์น™์„ ๊ตฌํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
( 2 X n ) - 1์˜ ์ค‘๊ฐ„ ์ธ๋ฑ์Šค๋ฅผ ๊ธฐ์ค€์œผ๋กœ +, - ๊ตฌ๊ฐ„์„ ์ •ํ•˜์—ฌ ๋ณ„์„ ์ฐ์œผ๋ฉด ๋ฉ๋‹ˆ๋‹ค.

(์ฐธ๊ณ ๋กœ ๋ณ„์„ ๋‹ค ์ฐ๊ณ  ๋‚˜์„œ ๋‹ค์Œ ์ธ๋ฑ์Šค๋ถ€ํ„ฐ ๋๊นŒ์ง€ ๋„์–ด์“ฐ๊ธฐ๋กœ ์ฑ„์šธ ๊ฒฝ์šฐ ์ถœ๋ ฅ ์—๋Ÿฌ๊ฐ€ ๋‚  ์ˆ˜ ์žˆ์Œ)

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