Solution: Sort Colors
Explore how to sort an array containing red, white, and blue represented as 0s, 1s, and 2s by applying the two pointers technique. Learn to efficiently position each color in a single traversal, achieving an in-place solution with O(n) time and O(1) space complexity. This lesson helps understand the Dutch National Flag algorithm and how to implement it in C++.
Statement
Given an array, colors, which contains a combination of the following three elements:
0 (Representing red)
1 (Representing white)
2 (Representing blue)
Sort the array in place so that the elements of the same color are adjacent, and the final order is: red (0), then white (1), and then blue (2).
Note: You are not allowed to use any built-in sorting functions. The goal is to solve this efficiently without extra space.
Constraints:
colors.length...