Create 1313-decompress-run-length-encoded-list.js

Author: everthis

1313-decompress-run-length-encoded-list.js

@@ -0,0 +1,13 @@
+/**
+ * @param {number[]} nums
+ * @return {number[]}
+ */
+const decompressRLElist = function(nums) {
+  const res = []
+  for(let i = 0, n = nums.length; i < n - 1; i += 2) {
+    const [freq, val] = [nums[i], nums[i + 1]]
+    for(let j = 0; j < freq; j++) res.push(val)
+  } 
+  
+  return res
+};