code to reverse an array

## Mastering Array Reversal: A Comprehensive Guide with Code Examples

Reversing an array is a fundamental operation in programming, applicable in diverse scenarios like string manipulation, data processing, and algorithm optimization. This tutorial will delve into the core concepts behind array reversal, explore various techniques to achieve it, and provide detailed code examples in multiple popular languages, explaining the logic behind each approach.

**1. Understanding Array Reversal**

At its simplest, array reversal involves rearranging the elements of an array in the opposite order they originally appeared. For instance:

* **Original Array:** `[1, 2, 3, 4, 5]`
* **Reversed Array:** `[5, 4, 3, 2, 1]`

**2. The Core Concept: Swapping Elements**

The most common and efficient approach to reversing an array involves swapping elements. The key idea is to iterate through the array from both ends simultaneously, swapping the element at the beginning with the element at the end, then moving towards the middle. This continues until the middle of the array is reached.

**3. Implementing Array Reversal: Step-by-Step Logic**

Let's break down the logic using pseudocode:

**Explanation:**

1. **`n = length(array)`:** Determine the size of the array to control the iteration.
2. **`for i = 0 to n/2 - 1 do:`:** This loop iterates from the first element (index 0) up to (but not including) the middle element. Why `n/2 - 1`? Consider an array of size 5. `n/2` is 2.5. Integer division truncates to 2. Since we start from index 0, index 1 is the last index we need to process. We swap `array[0]` with `array[4]`, and `array[1]` with `array[3]`. `array[2]` remains in place. For an array of size 6, n/2 - 1 = 6/2 - 1 = 3-1 = 2. Indexes are 0,1,2,3,4,5. We swap array[0] with array[5], array[1] with array[4], and array[2] with array[3].
3. **`temp = array[i]`:** Store the value of the element at the current beginning index in a temporary variable. This prevents overwr ...

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