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Grokking the Coding Interview Patterns in Go

Solution: Sort Colors

Explore how to solve the Sort Colors problem efficiently using the Dutch National Flag algorithm and two pointers. Understand how to partition an array into sections with a single pass and constant space. This lesson teaches you to implement an in-place color sorting method optimizing time and space.

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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.

Note: Could you come up with a one ...