import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def maxAreaOfIsland(self, grid: List[List[int]]) -> int:
    def dfs(i: int, j: int) -> int:
      if i < 0 or i == len(grid) or j < 0 or j == len(grid[0]):
        return 0
      if grid[i][j] != 1:
        return 0

      grid[i][j] = 2

      return 1 + dfs(i + 1, j) + dfs(i - 1, j) + dfs(i, j + 1) + dfs(i, j - 1)

    return max(dfs(i, j) for i in range(len(grid)) for j in range(len(grid[0])))

new Solution().maxAreaOfIsland()