Given an array of size N. The task is to sort the array elements by completing functions heapify() and buildHeap() which are used to implement Heap Sort.

Input:
First line of the input denotes number of test cases T. First line of the test case is the size of array and second line consists of array elements.

Output:
Sorted array in ascending order.

Constraints:
1 <= T <= 100
1 <= N <= 106
1 <= arr[i] <= 106

Example:
Input:
2
5
4 1 3 9 7
10
10 9 8 7 6 5 4 3 2 1

Output:
1 3 4 7 9
1 2 3 4 5 6 7 8 9 10

Explanation:
Testcase 1:
After sorting elements using heap sort, elements will be in order as 1, 3, 4, 7 and 9.

 

** For More Input/Output Examples Use 'Expected Output' option **

Contributor: Amit Khandelwal
Author: kartik


If you have purchased any course from GeeksforGeeks then please ask your doubt on course discussion forum. You will get quick replies from GFG Moderators there.



Need help with your code? Please use ide.geeksforgeeks.org, generate link and share the link here.


to report an issue on this page.