Added files

Author: nullptr

scala/1929-concatenation-of-array.scala

@@ -0,0 +1,13 @@
+object Solution {
+    def getConcatenation(nums: Array[Int]): Array[Int] = {
+        val n = nums.length
+        val ans = new Array[Int](2 * n)
+        
+        for (i <- 0 until n) {
+            ans(i) = nums(i)
+            ans(i + n) = nums(i)
+        }
+        
+        ans
+    }
+}