88

swolecoder · swolecoder · commit c253d3b4979d · 2021-01-03T15:54:14.000-05:00
diff --git a/Day88/index.js b/Day88/index.js
@@ -0,0 +1,30 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var countArrangement = function(n) {
+
+
+    let checker = new Array(n).fill(false);
+    let result = 0;
+    dfs(1,n)
+
+    function dfs(val,n){
+        if(val > n){
+            result++;
+            return;
+        }
+
+
+        for(let i=1; i <=n; i++){
+
+            if(!checker[i] && (i % val == 0 || val % i ==0)){
+                checker[i] = true;
+                dfs(val+1, n);
+                checker[i] = false;
+            }
+        }
+    }
+
+    return result;
+};
diff --git a/README.md b/README.md
@@ -194,4 +194,6 @@ If you are loving solving problems in leetcode, please contact me to enjoy it to
 
 |Day 86| [426. Convert Binary Search Tree to Sorted Doubly Linked List](https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list/submissions/) | [javascript]()|[:memo:](https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list/submissions/)|Medium|
 
-|Day 87| [1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree](https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree/) | [javascript]()|[:memo:](https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree/)|Medium|
+|Day 87| [1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree](https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree/) | [javascript]()|[:memo:](https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree/)|Medium|
+
+|Day 88| [526. Beautiful Arrangement](https://leetcode.com/problems/beautiful-arrangement/) | [javascript]()|[:memo:](https://leetcode.com/problems/beautiful-arrangement/)|Medium|
