Max Area of Island

Given a 2D grid of non-negative integers where 1 represents land and 0 represents water, determine the maximum area of an island (an island is formed by connected 1s). Input: grid = [[0,1,0],[1,1,1],[0,1,0]] Output: 5 Note: The 2D grid is surrounded by water on all four sides. Example Input [[0,1,0],[1,1,1],[0,1,0]]