# 0164. Maximum Gap

<https://leetcode.com/problems/maximum-gap>

## Description

Given an integer array `nums`, return *the maximum difference between two successive elements in its sorted form*. If the array contains less than two elements, return `0`.

You must write an algorithm that runs in linear time and uses linear extra space.

**Example 1:**

```
**Input:** nums = [3,6,9,1]
**Output:** 3
**Explanation:** The sorted form of the array is [1,3,6,9], either (3,6) or (6,9) has the maximum difference 3.
```

**Example 2:**

```
**Input:** nums = [10]
**Output:** 0
**Explanation:** The array contains less than 2 elements, therefore return 0.
```

**Constraints:**

* `1 <= nums.length <= 105`
* `0 <= nums[i] <= 109`

## ac

```java
```