[์†Œํ”„ํ‹ฐ์–ด] ์žฅ์• ๋ฌผ ์ธ์‹ ํ”„๋กœ๊ทธ๋žจ/Python - Lv.2

2024. 10. 29. 14:23ยทCoding Test/Algorithms

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๐Ÿ’ป์ฝ”๋“œ

import sys
from collections import deque

input = sys.stdin.readline

n = int(input())
board = [list(input().rstrip('\\n')) for _ in range(n)]
visit = [[False for _ in range(n)] for _ in range(n)]
dir = [[1, 0], [-1, 0], [0, 1], [0, -1]]
blocks = []

def bfs(y, x):
    q = deque()
    q.append((y, x))
    visit[y][x] = True
    block = 1
    while q:
        cury, curx = q.popleft()
        for d in dir:
            ny, nx = cury + d[0], curx + d[1]
            if 0 <= ny < n and 0 <= nx < n and not visit[ny][nx] and board[ny][nx] == '1':
                visit[ny][nx] = True
                q.append((ny, nx))
                block += 1

    blocks.append(block)

for i in range(n):
    for j in range(n):
        if not visit[i][j] and board[i][j] == '1':
            bfs(i, j)

blocks.sort()
print(len(blocks))
print(*blocks, sep='\\n')
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