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Wave Array
Easy Accuracy: 62.9% Submissions: 16754 Points: 2

Given a sorted array arr[] of distinct integers. Sort the array into a wave-like array and return it. In other words, arrange the elements into a sequence such that a1 >= a2 <= a3 >= a4 <= a5..... (considering the increasing lexicographical order).

Example 1:

Input:
N = 5
arr[] = {1,2,3,4,5}
Output: 2 1 4 3 5
Explanation: Array elements after 
sorting it in wave form are 
2 1 4 3 5.

 

Example 2:

Input:
N = 6
arr[] = {2,4,7,8,9,10}
Output: 4 2 8 7 10 9
Explanation: Array elements after 
sorting it in wave form are 
4 2 8 7 10 9.

Your Task:
The task is to complete the function convertToWave() which converts the given array to wave array.

Expected Time Complexity: O(N).
Expected Auxiliary Space: O(1).

Constraints:
1 ≤ N ≤ 106
0 ≤ A[i] ≤107

 

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Wave Array

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