🧩 Problem: Alternate Elements of an Array
Given an array arr[], your task is to print every alternate element of the array starting from the first element.
In other words, print elements at index 0, 2, 4, ... and skip the rest.
📥 Input
An array of integers arr[]
📤 Output
Print the alternate elements of the array (starting from index 0)
🧪 Examples
Example 1:
Input: arr[] = [10, 20, 30, 40, 50]
Output: 10 30 50
Explanation:
Print the first element (10), skip the second (20), print the third (30), skip the fourth (40), and print the fifth (50).
Example 2:
Input: arr[] = [-5, 1, 4, 2, 12]
Output: -5 4 12
⚠️ Constraints
1 ≤ arr.length ≤ 10^5-10^9 ≤ arr[i] ≤ 10^9
Solution
Approch 1
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