Merge pull request #38 from Rahul-Bhati/master

#33 issue solution

Author: Rohit0301

Leetcode/concatenation-of-array#33.java

@@ -0,0 +1,11 @@
+class Solution {
+    public int[] getConcatenation(int[] nums) {
+        int n = nums.length;
+        int ar[] = new int[n*2];
+        for(int i=0;i<n;i++){
+            ar[i] = nums[i] ;
+            ar[n+i] = nums[i] ;
+        }
+        return ar;
+    }
+}