백준 2667번 단지번호붙이기 파이썬

from collections import deque import sys N = int(input()) M = [[0] * N for _ in range(N)] for i in range(N): line = sys.stdin.readline() for j in range(N): M[i][j] = int(line[j]) dr = [-1, 1, 0, 0] dc = [0, 0, -1, 1] def bfs(x, y): queue = deque() queue.append((x, y)) M[x][y] = 0 cnt = 1 global num num += 1 while queue: x, y = queue.popleft() for i in range(4): nx = x + dr[i] ny = y + dc[i] if n..