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Rotating an Array in Java: A Three-Step Reversal Approach

In this video, we'll explore an efficient algorithm to rotate an array by a given number of positions to the right. This technique involves a clever three-step reversal process.

Here's how the algorithm works:
1) Reverse the Entire Array:
Reverse all elements of the array from the beginning to the end.

2) Reverse the First k Elements:
Reverse the first k elements of the array.

3) Reverse the Remaining Elements:
Reverse the remaining n - k elements of the array.

Why this approach is efficient:
Time Complexity: O(n), where n is the number of elements in the array. We perform three reversals, each taking O(n) time.
Space Complexity: O(1), as we modify the array in-place without using extra space.

In this video, you'll learn:
The concept of array rotation and its applications.
A step-by-step explanation of the three-step reversal technique.
A clear Java implementation of the solution.
Analysis of the time and space complexity.

Who should watch this video:
Java programmers looking to improve their algorithm skills.
Anyone interested in data structures and algorithms.
Those preparing for technical interviews.

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