Create 1968-array-with-elements-not-equal-to-average-of-neighbors.js

Solved array-with-elements-not-equal-to-average-of-neighbors in JS.

javascript/1968-array-with-elements-not-equal-to-average-of-neighbors.js

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+/**
+ * Two Pointers
+ * https://leetcode.com/problems/array-with-elements-not-equal-to-average-of-neighbors/
+ * 
+ * Time O(n*log(n)) | Space O(n)
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+ var rearrangeArray = function(nums) {
+    nums.sort((a,b) => a-b);
+
+    let midPointer = Math.ceil(nums.length / 2);
+    let beginingPointer = 1;
+
+    while(midPointer < nums.length) {
+        swap(midPointer, beginingPointer, nums);
+        midPointer++;
+        beginingPointer += 2
+    }
+    return nums;
+  };
+
+var swap = function(i,j,nums) {
+    [nums[i], nums[j]] = [nums[j], nums[i]];
+}