Create decompress_run_length_encoded_list.js

Author: Jaskaran Singh

decompress_run_length_encoded_list.js

@@ -0,0 +1,21 @@
+/**
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+var decompressRLElist = function(nums) {
+    let decompressed = [], freq = [], val = [];
+    
+    for(let i = 0; i < nums.length; i++) {
+        if(i % 2 == 0)
+            freq.push(nums[i]);
+        else
+            val.push(nums[i]);
+    }
+        
+    for(let i = 0; i < freq.length; i++) {
+        for(let j = 0; j < freq[i]; j++)
+            decompressed.push(val[i]);
+    }
+
+    return decompressed;
+};