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Solution: Sort Colors

Explore how to sort an array of integers representing colors using the two pointers technique and the Dutch National Flag algorithm. This lesson teaches you to implement an in-place, one-pass solution with constant space complexity and understand the role of low, mid, and high pointers in efficiently grouping colors.

Statement

You are given an array nums of length n, where each element represents an object colored either red, white, or blue. The integers 01, and 2 are used to represent red, white, and blue, respectively.

Sort the array in place so that all objects of the same color are grouped together, arranged in the order: red (0), white (1), and blue (2).

You must solve this problem without using any library sort function.

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