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Chapter 6:Heapsort.

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Presentation on theme: "Chapter 6:Heapsort."— Presentation transcript:

1 Chapter 6:Heapsort

2 Heapsort

3 Heapsort

4 Heapsort

5 Heapsort

6 Heapsort

7 Heapsort Time O(lg n) Intuitive Analysis
Heap is almost-complete binary tree, hence must process O(lg n) levels, with constant work at each level (comparing 3 items and maybe swapping 2). For more formal analysis see your book using recurrence and Master method.

8 Build-Max-Heap See next page for detail.

9 Build-Max-Heap The Operation of BUILD_MAX_HEAP

10 Build-Max-Heap

11 Build-Max-Heap

12 Heapsort

13 Heapsort

14 Heapsort Example

15 Heapsort

16 Priority Queues

17 Priority Queues

18 Priority Queues

19 Priority Queues

20 Priority Queues

21 Priority Queues

22 Heap-Increase-key Example

23 Priority Queues

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