Convert array into Zig-Zag fashion | Practice | GeeksforGeeks

Share Our Content With ⤦

Share on facebook
Share on twitter
Share on linkedin
Share on google
Share on whatsapp
Share on telegram
Share on reddit
Share on pinterest
Share on print


Given an array Arr (distinct elements) of size N. Rearrange the elements of array in zig-zag fashion. The converted array should be in form a < b > c < d > e < f. The relative order of elements is same in the output i.e you have to iterate on the original array only.

Example 1:

Input:
N = 7
Arr[] = {4, 3, 7, 8, 6, 2, 1}
Output: 3 7 4 8 2 6 1
Explanation: 3 < 7 > 4 < 8 > 2 < 6 > 1

Example 2:

Input:
N = 4
Arr[] = {1, 4, 3, 2}
Output: 1 4 2 3
Explanation: 1 < 4 > 2 < 3

Your Task:
You don’t need to read input or print anything. Your task is to complete the function zigZag() which takes the array of integers arr and n as parameters and returns void. You need to modify the array itself.

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

Constraints:
1 <= N <= 105
0 <= Arri <= 106

 





Source link

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on pinterest
Pinterest
Share on reddit
Reddit
Share on telegram
Telegram
Share on email
Email

Leave a Reply

Your email address will not be published. Required fields are marked *