Method _numIslands

Java/NumberOfIslands.java:62–75

@param grid @param m @param n

(char[][] grid, int m, int n)

	 * @param n
	 */
	private void _numIslands(char[][] grid, int m, int n) {

		if (m < 0 || m >= r || n < 0 || n >= c || visited[m][n] || grid[m][n] == '0') {

			return;
		}

		visited[m][n] = true;

		_numIslands(grid, m + 1, n);
		_numIslands(grid, m, n + 1);
		_numIslands(grid, m - 1, n);
		_numIslands(grid, m, n - 1);
	}
}