Solution: Sort Colors
Explore how to sort an array of colors represented by 0s, 1s, and 2s using the two pointers technique. This lesson teaches the Dutch National Flag algorithm, enabling you to implement an in-place sorting solution that operates in a single pass with constant memory. Understand how to manage pointers and swaps to group colors correctly without extra space, improving your problem-solving skills for coding interviews.
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Statement
You are given an array nums of length n, where each element represents an object colored either red, white, or blue. The integers 0, 1, 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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