Sort 0s, 1s and 2s | GfG 160 - 160 Days of Problem Solving | Day21

Solve the classic problem of sorting an array consisting of only 0s, 1s, and 2s. Use an efficient approach with the Dutch National Flag Algorithm, achieving
𝑂
(
𝑛
)
O(n) time complexity and
𝑂
(
1
)
O(1) space complexity. This problem is a great way to practice array manipulation and pointer-based techniques.
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