In a 2D grid of? 0 s and? 1 s, we change at most one? 0 ?to a? 1 . After, what is the size of the largest island??(An island is a 4-directionally connected group of? 1 s). Example 1: Input: [[1, 0], [0, 1]]Output: 3Explanation: Change one 0
In a 2D grid of?0s and?1s, we change at most one?0?to a?1.
After, what is the size of the largest island??(An island is a 4-directionally connected group of?1s).
Example 1:
Input: [[1, 0], [0, 1]] Output: 3 Explanation: Change one 0 to 1 and connect two 1s, then we get an island with area = 3.
Example 2:
Input: [[1, 1], [1, 0]] Output: 4 Explanation: Change the 0 to 1 and make the island bigger, only one island with area = 4.
Example 3:
Input: [[1, 1], [1, 1]] Output: 4 Explanation: Can't change any 0 to 1, only one island with area = 4.
Notes:
1 <= grid.length = grid[0].length <= 50.0 <= grid[i][j] <= 1.
Github 同步地址:
https://github.com/grandyang/leetcode/issues/827
参考资料：
https://leetcode.com/problems/making-a-large-island/
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