[파이썬] 7576 토마토
from collections import deque n, m = map(int, input().split()) board = [list(map(int, input().split())) for _ in range(m)] check = [[0] * n for _ in range(m)] dx = [-1, 1, 0, 0] dy = [0, 0, -1, 1] q = deque() ans = 0 for i in range(m): for j in range(n): if board[i][j] == 1: q.append([i, j, 0]) while q: x, y, count = q.popleft() ans = max(ans, count) for i in range(4): nx, ny = x + dx[i], y + dy..