removing-minimum-and-maximum-from-array

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Algorithms

You are given a 0-indexed array of distinct integers <code>nums</code>.

There is an element in <code>nums</code> that has the lowest value and an element that has the highest value. We call them the minimum and maximum respectively. Your goal is to remove both these elements from the array.

A deletion is defined as either removing an element from the front of the array or removing an element from the back of the array.

Return the minimum number of deletions it would take to remove both the minimum and maximum element from the array.

&nbsp;
Example 1:

<pre>
Input: nums = [2,10,7,5,4,1,8,6]
Output: 5
Explanation: 
The minimum element in the array is nums[5], which is 1.
The maximum element in the array is nums[1], which is 10.
We can remove both the minimum and maximum by removing 2 elements from the front and 3 elements from the back.
This results in 2 + 3 = 5 deletions, which is the minimum number possible.
</pre>

Example 2:

<pre>
Input: nums = [0,-4,19,1,8,-2,-3,5]
Output: 3
Explanation: 
The minimum element in the array is nums[1], which is -4.
The maximum element in the array is nums[2], which is 19.
We can remove both the minimum and maximum by removing 3 elements from the front.
This results in only 3 deletions, which is the minimum number possible.
</pre>

Example 3:

<pre>
Input: nums = [101]
Output: 1
Explanation: 
There is only one element in the array, which makes it both the minimum and maximum element.
We can remove it with 1 deletion.
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>1 &lt;= nums.length &lt;= 105</code></li>
	<li><code>-105 &lt;= nums[i] &lt;= 105</code></li>
	<li>The integers in <code>nums</code> are distinct.</li>
</ul>

minimumDeletions

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maximum-points-you-can-obtain-from-cards

可获得的最大点数

Minimum Deletions to Make Character Frequencies Unique

minimum-deletions-to-make-character-frequencies-unique

字符频次唯一的最小删除次数

Greedy

Array

给你一个下标从 0 开始的数组 <code>nums</code> ，数组由若干 互不相同 的整数组成。

<code>nums</code> 中有一个值最小的元素和一个值最大的元素。分别称为 最小值 和 最大值 。你的目标是从数组中移除这两个元素。

一次 删除 操作定义为从数组的 前面 移除一个元素或从数组的 后面 移除一个元素。

返回将数组中最小值和最大值 都 移除需要的最小删除次数。

&nbsp;

示例 1：

<pre>
输入：nums = [2,10,7,5,4,1,8,6]
输出：5
解释：
数组中的最小元素是 nums[5] ，值为 1 。
数组中的最大元素是 nums[1] ，值为 10 。
将最大值和最小值都移除需要从数组前面移除 2 个元素，从数组后面移除 3 个元素。
结果是 2 + 3 = 5 ，这是所有可能情况中的最小删除次数。
</pre>

示例 2：

<pre>
输入：nums = [0,-4,19,1,8,-2,-3,5]
输出：3
解释：
数组中的最小元素是 nums[1] ，值为 -4 。
数组中的最大元素是 nums[2] ，值为 19 。
将最大值和最小值都移除需要从数组前面移除 3 个元素。
结果是 3 ，这是所有可能情况中的最小删除次数。 
</pre>

示例 3：

<pre>
输入：nums = [101]
输出：1
解释：
数组中只有这一个元素，那么它既是数组中的最小值又是数组中的最大值。
移除它只需要 1 次删除操作。
</pre>

&nbsp;

提示：

<ul>
	<li><code>1 &lt;= nums.length &lt;= 105</code></li>
	<li><code>-105 &lt;= nums[i] &lt;= 105</code></li>
	<li><code>nums</code> 中的整数 互不相同</li>
</ul>