You have an integer matrix representing a plot of land, where the value at the location represents the height above sea level. A value of zero indicates water. A pond is a region of water connected vertically, horizontally or diagonally. The size of pond is the total number of connected water cells. Implement a method to return sizes of all ponds in the matrix.
* – Traverse DFS over area
- Iterate all cells of matrix one by one
- If its not visited and cell has water call DFS to count connected ponds
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