#767Easy· asked at 2 companies
Island Perimeter
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What we know
Example 1
Input: grid = [[0,1,0,0],[1,1,1,0],[0,1,0,0],[1,1,0,0]] Output: 16
Example 2
Input: grid = [[1]] Output: 4
Example 3
Input: grid = [[1,0]] Output: 4
Constraints
- •
row == grid.length - •
col == grid[i].length - •
1 <= row, col <= 100 - •
grid[i][j]is 0 or 1.