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Merge pull request #1408 from xiaofei-2020/extra05

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添加（0189.旋转数组.md）：增加typescript版本
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程序员Carl
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problems/0189.旋转数组.md
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@ -7,6 +7,8 @@
# 189. 旋转数组
[力扣题目链接](https://leetcode.cn/problems/rotate-array/)
给定一个数组，将数组中的元素向右移动 k 个位置，其中 k 是非负数。
进阶：
@ -160,6 +162,27 @@ var rotate = function (nums, k) {
};
```
## TypeScript
```typescript
function rotate(nums: number[], k: number): void {
const length: number = nums.length;
k %= length;
reverseByRange(nums, 0, length - 1);
reverseByRange(nums, 0, k - 1);
reverseByRange(nums, k, length - 1);
};
function reverseByRange(nums: number[], left: number, right: number): void {
while (left < right) {
const temp = nums[left];
nums[left] = nums[right];
nums[right] = temp;
left++;
right--;
}
}
```
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