> For the complete documentation index, see [llms.txt](https://jaywin.gitbook.io/leetcode/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jaywin.gitbook.io/leetcode/solutions/1470-shuffle-the-array.md).

# 1470. Shuffle the Array

<https://leetcode.com/problems/shuffle-the-array>

## Description

Given the array `nums` consisting of `2n` elements in the form `[x1,x2,...,xn,y1,y2,...,yn]`.

*Return the array in the form* `[x1,y1,x2,y2,...,xn,yn]`.

**Example 1:**

```

**Input:** nums = [2,5,1,3,4,7], n = 3
**Output:** [2,3,5,4,1,7] 
**Explanation:** Since x1=2, x2=5, x3=1, y1=3, y2=4, y3=7 then the answer is [2,3,5,4,1,7].
```

**Example 2:**

```

**Input:** nums = [1,2,3,4,4,3,2,1], n = 4
**Output:** [1,4,2,3,3,2,4,1]
```

**Example 3:**

```

**Input:** nums = [1,1,2,2], n = 2
**Output:** [1,2,1,2]
```

**Constraints:**

* `1 <= n <= 500`
* `nums.length == 2n`
* `1 <= nums[i] <= 10^3`

## ac

```java
```