1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n...
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![Page 1: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/1.jpg)
1
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
partitioned
partition element unpartitioned
p q
![Page 2: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/2.jpg)
2
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
p q
![Page 3: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/3.jpg)
3
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
p q
![Page 4: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/4.jpg)
4
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
p q
swap me
![Page 5: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/5.jpg)
5
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
p q
swap me
![Page 6: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/6.jpg)
6
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
p q
swap me
![Page 7: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/7.jpg)
7
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B X W P P V P D P C Y Z P
p q
swap me swap me
![Page 8: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/8.jpg)
8
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B C W P P V P D P X Y Z P
p q
![Page 9: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/9.jpg)
9
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B C W P P V P D P X Y Z P
p q
swap me
![Page 10: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/10.jpg)
10
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B C W P P V P D P X Y Z P
p q
swap me swap me
![Page 11: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/11.jpg)
11
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
A B C P P P V P D W X Y Z P
p q
swap left
![Page 12: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/12.jpg)
12
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A P P V P D W X Y Z P
p q
![Page 13: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/13.jpg)
13
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A P P V P D W X Y Z P
p q
swap me
![Page 14: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/14.jpg)
14
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A P P V P D W X Y Z P
p q
swap me swap me
![Page 15: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/15.jpg)
15
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A D P V P P W X Y Z P
p q
swap right
![Page 16: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/16.jpg)
16
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A D P V P Z W X Y P P
p q
![Page 17: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/17.jpg)
17
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A D P V P Z W X Y P P
p q
swap me
![Page 18: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/18.jpg)
18
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A D P V P Z W X Y P P
p q
swap me swap me
![Page 19: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/19.jpg)
19
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P B C A D P V P Z W X Y P P
p q
swap left
![Page 20: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/20.jpg)
20
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P P C A D B V P Z W X Y P P
q
swap right
p
![Page 21: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/21.jpg)
21
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P P C A D B V Y Z W X P P P
p q
![Page 22: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/22.jpg)
22
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P P C A D B V Y Z W X P P P
p q
swap me
![Page 23: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/23.jpg)
23
3-Way Partitioning
3-way partitioning. Choose partitioning element. Scan from left element. Scan from right for element. Exchange. Move to left or right end if equal. Repeat until pointers cross.
P P C A D B V Y Z W X P P P
p q
pointers cross
![Page 24: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/24.jpg)
24
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
P P C A D B Y Z W X P P P
p q
swap meswap me
V
![Page 25: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/25.jpg)
25
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
B P C A D P Y Z W X P P P
p q
swap meswap me
V
![Page 26: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/26.jpg)
26
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
B D C A P P Y Z W X P P P
p q
V
![Page 27: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/27.jpg)
27
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
B D C A P P Y Z W X P P P
p q
swap me swap me
V
![Page 28: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/28.jpg)
28
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
B D C A P P P Y Z W X P P V
p q
swap me swap me
![Page 29: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/29.jpg)
29
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
B D C A P P P P Z W X P Y V
p q
swap me swap me
![Page 30: 1 3-Way Partitioning 3-way partitioning. n Choose partitioning element. n Scan from left element. n Scan from right for element. n Exchange. n Move.](https://reader035.fdocuments.net/reader035/viewer/2022062417/551b205755034607418b5a97/html5/thumbnails/30.jpg)
30
3-Way Partitioning
3-way partitioning. Swap elements on left with elements in middle. Swap elements on right with elements in middle.
B D C A P P P P P W X Z Y V
p q
3-way partitioned!