As Far from Land as Possible

The square grid uses 0 for water and 1 for land. For each water cell, measure the distance to its nearest land cell using abs(row1 - row2) + abs(column1 - column2). Return the largest of these nearest-land distances. If there is no water or there is no land, return -1.

Example 1:

Input: grid = [[1,0],[0,0]]

Output: 2

Explanation: The only land is at (0,0). Water at (1,1) is farthest from it, with distance |1-0| + |1-0| = 2.

Example 2:

Input: grid = [[1,1],[1,1]]

Output: -1

Explanation: There is no water cell to choose, so the result is -1.

Example 3:

Input: grid = [[0,0],[0,0]]

Output: -1

Explanation: There is no land cell from which to measure distance, so the result is -1.

Constraints:

• 1 <= grid.length <= 100
• Every row has grid.length entries.
• Every entry is either 0 or 1.