Merge pull request #2639 from Sar-Go/main

Create: 0912-sort-an-array.go ; Create: 1929-concatenation-of-array.go

Author: tahsintunan

go/0912-sort-an-array.go

@@ -0,0 +1,4 @@
+func sortArray(nums []int) []int {
+    sort.Ints(nums)
+    return nums
+}

go/1929-concatenation-of-array.go

@@ -0,0 +1,11 @@
+func getConcatenation(nums []int) []int {
+  n := len(nums)
+	ans := make([]int, 2*n)	//lets make an array of int type and 2*n size
+	i := 0
+	for i < n {		//implementing for loop for the given condition
+		ans[i] = nums[i]
+		ans[i+n] = nums[i]
+		i++
+	}
+	return ans
+}