feat(leetcode): add solution for sort array by increasing frequency problem

work/Baton-1/Easy/Array/1636.sort-array-by-increasing-frequency.js

@@ -0,0 +1,50 @@
+/*
+ * 1636. Sort Array by Increasing Frequency
+ * Difficulty: Easy
+ * https://leetcode.com/problems/sort-array-by-increasing-frequency/
+ * 
+ * ──────────────────────────────────────────────────
+ * 
+ * Given an array of integers nums, sort the array in increasing order
+ * based on the frequency of the values. If multiple values have the same
+ * frequency, sort them in decreasing order.
+ * 
+ * Return the sorted array.
+ * 
+ *  
+ * 
+ * Example 1:
+ * 
+ * Input: nums = [1,1,2,2,2,3]
+ * Output: [3,1,1,2,2,2]
+ * Explanation: '3' has a frequency of 1, '1' has a frequency of 2, and
+ * '2' has a frequency of 3.
+ * 
+ * Example 2:
+ * 
+ * Input: nums = [2,3,1,3,2]
+ * Output: [1,3,3,2,2]
+ * Explanation: '2' and '3' both have a frequency of 2, so they are
+ * sorted in decreasing order.
+ * 
+ * Example 3:
+ * 
+ * Input: nums = [-1,1,-6,4,5,-6,1,4,1]
+ * Output: [5,-1,4,4,-6,-6,1,1,1]
+ * 
+ *  
+ * 
+ * Constraints:
+ * 
+ * 	• 1 <= nums.length <= 100
+ * 
+ * 	• -100 <= nums[i] <= 100
+*/
+
+/**
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+var frequencySort = function(nums) {
+    
+};