sort-colors

Sort Colors

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sortColors

Given an array <code>nums</code> with <code>n</code> objects colored red, white, or blue, sort them <a href="https://en.wikipedia.org/wiki/In-place_algorithm" target="_blank">in-place</a> so that objects of the same color are adjacent, with the colors in the order red, white, and blue.

We will use the integers <code>0</code>, <code>1</code>, and <code>2</code> to represent the color red, white, and blue, respectively.

You must solve this problem without using the library&#39;s sort function.

&nbsp;
Example 1:

<pre>
Input: nums = [2,0,2,1,1,0]
Output: [0,0,1,1,2,2]
</pre>

Example 2:

<pre>
Input: nums = [2,0,1]
Output: [0,1,2]
</pre>

&nbsp;
Constraints:

<ul>
	<li><code>n == nums.length</code></li>
	<li><code>1 &lt;= n &lt;= 300</code></li>
	<li><code>nums[i]</code> is either <code>0</code>, <code>1</code>, or <code>2</code>.</li>
</ul>

&nbsp;
Follow up:&nbsp;Could you come up with a one-pass algorithm using only&nbsp;constant extra space?

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