# 滑动窗口最大值

<p>给你一个整数数组 <code>nums</code>，有一个大小为 <code>k</code><em> </em>的滑动窗口从数组的最左侧移动到数组的最右侧。你只可以看到在滑动窗口内的 <code>k</code> 个数字。滑动窗口每次只向右移动一位。</p>

<p>返回滑动窗口中的最大值。</p>

<p> </p>

<p><strong>示例 1：</strong></p>

<pre>
<b>输入：</b>nums = [1,3,-1,-3,5,3,6,7], k = 3
<b>输出：</b>[3,3,5,5,6,7]
<b>解释：</b>
滑动窗口的位置                最大值
---------------               -----
[1  3  -1] -3  5  3  6  7       <strong>3</strong>
 1 [3  -1  -3] 5  3  6  7       <strong>3</strong>
 1  3 [-1  -3  5] 3  6  7      <strong> 5</strong>
 1  3  -1 [-3  5  3] 6  7       <strong>5</strong>
 1  3  -1  -3 [5  3  6] 7       <strong>6</strong>
 1  3  -1  -3  5 [3  6  7]      <strong>7</strong>
</pre>

<p><strong>示例 2：</strong></p>

<pre>
<b>输入：</b>nums = [1], k = 1
<b>输出：</b>[1]
</pre>

<p><strong>示例 3：</strong></p>

<pre>
<b>输入：</b>nums = [1,-1], k = 1
<b>输出：</b>[1,-1]
</pre>

<p><strong>示例 4：</strong></p>

<pre>
<b>输入：</b>nums = [9,11], k = 2
<b>输出：</b>[11]
</pre>

<p><strong>示例 5：</strong></p>

<pre>
<b>输入：</b>nums = [4,-2], k = 2
<b>输出：</b>[4]</pre>

<p> </p>

<p><b>提示：</b></p>

<ul>
	<li><code>1 <= nums.length <= 10<sup>5</sup></code></li>
	<li><code>-10<sup>4</sup> <= nums[i] <= 10<sup>4</sup></code></li>
	<li><code>1 <= k <= nums.length</code></li>
</ul>


## template

```python
class Solution(object):
    def maxSlidingWindow(self, nums, k):
        """
        :type nums: List[int]
        :type k: int
        :rtype: List[int]
        """
        if len(nums) == 0:
            return []
        if k == 1:
            return nums

        res = []
        res.append(max(nums[:k]))
        for i in range(1, len(nums) - k + 1):
            m = max(nums[i : i + k])
            res.append(m)
        return res

```

## 答案

```python

```

## 选项

### A

```python

```

### B

```python

```

### C

```python

```