[백준][Python] 17129 윌리암슨 수액빨이딱따구리가 정보섬에 올라온 이 간단한 bfs문제 import sys input = sys.stdin.readline from collections import deque def bfs(i,j): q = deque() q.append((i,j)) visited[i][j] = 1 while q: x, y = q.popleft() for d in delta: nx, ny = x + d[0], y + d[1] if 0 practivceAlgorithm/백준 2021.09.19