Create 695-Max-Area-of-Island.java

Author: SharmaTushar1

java/695-Max-Area-of-Island.java

@@ -0,0 +1,27 @@
+class Solution {
+    public int maxAreaOfIsland(int[][] grid) {
+        int ans = 0;
+        int m = grid.length;
+        int n = grid[0].length;
+        for (int i = 0; i<m; i++) {
+            for (int j = 0; j<n; j++) {
+                if (grid[i][j] == 1)
+                    ans = Math.max(dfs(grid, i, j, m, n, new int[]{0}), ans);
+            }
+        }
+        return ans;
+    }
+    
+    public int dfs(int[][] grid, int i, int j, int m, int n, int[] count) {
+        if (i<0 || j<0 || i>=m || j>=n || grid[i][j] == 0) 
+            return count[0];
+        count[0]++;
+        grid[i][j] = 0;
+        dfs(grid, i-1, j, m, n, count);
+        dfs(grid, i+1, j, m, n, count);
+        dfs(grid, i, j-1, m, n, count);
+        dfs(grid, i, j+1, m, n, count);
+        return count[0];
+    }
+    
+}