Add solution using a new array

data_structures/arrays/shuffle_array.rb

@@ -1,27 +1,39 @@
 # Challenge name: Shuffle the array
+#
 # Given the array nums consisting of 2n elements
 # in the form [x1,x2,...,xn,y1,y2,...,yn].
 # Return the array in the form [x1,y1,x2,y2,...,xn,yn].
-# Example 1:
 #
+# Example 1:
 # Input: nums = [2,5,1,3,4,7], n = 3
 # Output: [2,3,5,4,1,7]
 # Explanation: Since x1=2, x2=5, x3=1, y1=3, y2=4, y3=7 then the answer is [2,3,5,4,1,7].
 #
 # Example 2:
-#
 # Input: nums = [1,2,3,4,4,3,2,1], n = 4
 # Output: [1,4,2,3,3,2,4,1]
 #
 # Example 3:
-#
 # Input: nums = [1,1,2,2], n = 2
 # Output: [1,2,1,2]
+#
 # @param {Integer[]} nums
 # @param {Integer} n
 # @return {Integer[]}
+
+#
+# Approach 1: New Array
+#
+# Time Complexity: O(N)
+#
 def shuffle(nums, n)
+  result = []
+  (0..n-1).count do |i|
+    result.push(nums[i], nums[i+n])
+  end
+  result
 end
+
 nums = [2, 5, 1, 3, 4, 7]
 n = 3
 print(shuffle(nums, n))