Dsa
Arrays
Easy
Rearrange Array for Alternating High-Low
Given an array of integers, rearrange the elements of the array such that they are in alternating high-low order. In other words, for each pair of adjacent elements, arr[i] should be less than arr[i+1] if i is even, and greater if i is odd.
Input format:
- The first line contains an integer n (1 <= n <= 10^5), the number of elements in the array.
- The second line contains n space-separated integers (|a[i]| <= 1000), the elements of the array.
Output format:
- Output a single line of the rearranged array as space-separated integers.
Example:
Input:
5
1 2 3 4 5
Output:
1 3 2 5 4
Key concepts
arrayssorting
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