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๐๐ข๐๐ โ๐๐๐ ๐๐๐ก๐๐ ๐๐๐๐โง
[Python] ํ๋ก๊ทธ๋๋จธ์ค ๊ฑฐ๋ฆฌ๋๊ธฐ ํ์ธํ๊ธฐ & ํ๋ก๊ทธ๋๋จธ์ค ์ ํ๋ฒํธ ๋ชฉ๋ก ๋ณธ๋ฌธ
๐ฃ๐ฟ๐ผ๐ด๐ฟ๐ฎ๐บ๐บ๐ถ๐ป๐ด๐ป/[๐๐ฒ๐ญ๐ก๐จ๐ง] ๐๐ฅ๐ ๐จ๐ซ๐ข๐ญ๐ก๐ฆ
[Python] ํ๋ก๊ทธ๋๋จธ์ค ๊ฑฐ๋ฆฌ๋๊ธฐ ํ์ธํ๊ธฐ & ํ๋ก๊ทธ๋๋จธ์ค ์ ํ๋ฒํธ ๋ชฉ๋ก
๐คRyusun๐ค 2023. 9. 3. 23:31# ํ๋ก๊ทธ๋๋จธ์ค ๊ฑฐ๋ฆฌ๋๊ธฐ ํ์ธํ๊ธฐ
from collections import deque
d_row = [0, -1, 0, 1]
d_col = [1, 0, -1, 0]
def solution(places):
answer = []
for i in range(5):
result = bfs(places[i])
answer.append(result)
return answer
def bfs(place):
queue = deque()
visited = [[False] * 5 for _ in range(5)]
for i in range(5):
for j in range(5):
if place[i][j] == 'P':
queue.append([i, j, False])
if place[i][j] == 'O':
queue.append([i, j, False])
while queue:
x, y, flag = queue.popleft()
for i in range(4):
dx = d_row[i] + x
dy = d_col[i] + y
if 0 <= dx < 5 and 0 <= dy < 5:
if place[x][y] == 'P' and place[dx][dy] == 'P':
return 0
elif flag == False and not visited[dx][dy] and place[x][y] == 'O' and place[dx][dy] == 'P':
flag = True
queue.append([dx, dy, True])
elif place[x][y] == 'O' and place[dx][dy] == 'P' and flag:
return 0
return 1
places = [["POOOP", "OXXOX", "OPXPX", "OOXOX", "POXXP"],
["POOPX", "OXPXP", "PXXXO", "OXXXO", "OOOPP"],
["PXOPX", "OXOXP", "OXPOX", "OXXOP", "PXPOX"],
["OOOXX", "XOOOX", "OOOXX", "OXOOX", "OOOOO"],
["PXPXP", "XPXPX", "PXPXP", "XPXPX", "PXPXP"]]
solution(places)
ํ์ด
ํ ์ด๋ธ('O')๊ธฐ์ค์ผ๋ก 4๋ฉด์ ์ฌ๋('P')๊ฐ ์๋์ง ์ฒดํฌํ๋ค.
๋ง์ฝ ์ฌ๋์ด ์์ผ๋ฉด ๋จ์ 3๋ฉด์๋ ์ฌ๋์ด ์์ด์ผ ๊ฑฐ๋ฆฌ๋๊ธฐ๊ฐ ๊ฐ๋ฅํ๊ธฐ๋๋ฌธ์ ์ฌ๋์ด ๋์ค๋ฉด flag = True๋ก ์ค์ ํ๊ณ queue์ ๋ฃ์ด์คํ ๋ฐ๋ณต๋ฌธ์ด ๋๋๊ธฐ์ ๊น์ง ์ฌ๋์ด ๋ ๋์ค๋ฉด return 0์ ํด์ค๋ค.
# ํ๋ก๊ทธ๋๋จธ์ค ์ ํ๋ฒํธ ๋ชฉ๋ก
def solution(phone_book):
phone_book.sort()
for i in range(len(phone_book)-1):
if len(phone_book[i]) <= len(phone_book[i+1]):
i_len = len(phone_book[i])
if phone_book[i] == phone_book[i+1][:i_len]:
return False
return True
'๐ฃ๐ฟ๐ผ๐ด๐ฟ๐ฎ๐บ๐บ๐ถ๐ป๐ด๐ป > [๐๐ฒ๐ญ๐ก๐จ๐ง] ๐๐ฅ๐ ๐จ๐ซ๐ข๐ญ๐ก๐ฆ' ์นดํ ๊ณ ๋ฆฌ์ ๋ค๋ฅธ ๊ธ
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