Create 0189-Rotate-Array.go solution

Author: razer96

go/0189-Rotate-Array.go

@@ -0,0 +1,14 @@
+func rotate(nums []int, k int)  {
+	k = k % len(nums)
+	reverse(nums, 0, len(nums) - 1)
+	reverse(nums, 0, k - 1)
+	reverse(nums, k, len(nums) - 1)
+}
+
+func reverse(nums []int, start, end int) {
+	for start <= end {
+		nums[start], nums[end] = nums[end], nums[start]
+		start++
+		end--
+	}
+}