Method countSubIslands

CountSubIsIland.java:23–38

(int[][] grid1, int[][] grid2)

        return isIsland;
    }
    public int countSubIslands(int[][] grid1, int[][] grid2) {
        rows = grid1.length;
        cols = grid1[0].length;
        boolean visited[][] = new boolean[rows][cols];
        int count=0;
        for(int i=0;i<rows;i++){
            for(int j=0;j<cols;j++){
                if(!visited[i][j] && grid2[i][j]==1){
                    if(dfs(i,j,grid1,grid2,visited)){
                        count++;
                    }
                }
            }
        }
        return count;
    }
}