189 finish

Author: aQua

Algorithms/0189.rotate-array/README.md

@@ -21,6 +21,3 @@ Related problem: [Reverse Words in a String II](https://leetcode.com/problems/re
 1. nums 整体翻转
 1. nums[:k] 翻转
 1. nums[k:] 翻转
-
-### 递归交换
-见程序注释

Algorithms/0189.rotate-array/rotate-array_test.go

@@ -28,6 +28,15 @@ func Test_Problem0189(t *testing.T) {
 
 	qs := []question{
 
+		question{
+			para{
+				[]int{1, 2, 3, 4, 5, 6}, 2,
+			},
+			ans{
+				[]int{5, 6, 1, 2, 3, 4},
+			},
+		},
+
 		question{
 			para{
 				[]int{1, 2, 3, 4, 5, 6, 7}, 14,