__ Problem:- __

Given an array nums with n objects colored red, white, or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white, and blue.

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

You must solve this problem without using the library's sort function.

** Example 1:**

Input: nums = [2,0,2,1,1,0]

Output: [0,0,1,1,2,2]

**Example 2:**

Input: nums = [2,0,1]

Output: [0,1,2]

**Constraints:**

n == nums.length

1 <= n <= 300

nums[i] is either 0, 1, or 2.

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

__Solution:-__

__Solution:-__

**Intuition**

**Approach : Dutch National Flag algorithm**

**The Dutch National Flag algorithm is called one-pass because it sorts the array in a single pass through the elements. The time complexity of the algorithm is O(n), where n is the size of the array.**

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