Download presentation

Presentation is loading. Please wait.

Published byPatrick Beverly Modified over 2 years ago

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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP partitioned partition elementunpartitioned pq

2
2 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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP pq

3
3 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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP pq

4
4 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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP pq swap me

5
5 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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP pq swap me

6
6 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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP pq swap me

7
7 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 to left or right end if equal. n Repeat until pointers cross. ABXWPPVPDPCYZP pq swap me

8
8 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 to left or right end if equal. n Repeat until pointers cross. ABCWPPVPDPXYZP pq

9
9 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 to left or right end if equal. n Repeat until pointers cross. ABCWPPVPDPXYZP pq swap me

10
10 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 to left or right end if equal. n Repeat until pointers cross. ABCWPPVPDPXYZP pq swap me

11
11 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 to left or right end if equal. n Repeat until pointers cross. ABCPPPVPDWXYZP pq swap left

12
12 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 to left or right end if equal. n Repeat until pointers cross. PBCAPPVPDWXYZP pq

13
13 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 to left or right end if equal. n Repeat until pointers cross. PBCAPPVPDWXYZP pq swap me

14
14 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 to left or right end if equal. n Repeat until pointers cross. PBCAPPVPDWXYZP pq swap me

15
15 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 to left or right end if equal. n Repeat until pointers cross. PBCADPVPPWXYZP pq swap right

16
16 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 to left or right end if equal. n Repeat until pointers cross. PBCADPVPZWXYPP pq

17
17 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 to left or right end if equal. n Repeat until pointers cross. PBCADPVPZWXYPP pq swap me

18
18 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 to left or right end if equal. n Repeat until pointers cross. PBCADPVPZWXYPP pq swap me

19
19 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 to left or right end if equal. n Repeat until pointers cross. PBCADPVPZWXYPP pq swap left

20
20 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 to left or right end if equal. n Repeat until pointers cross. PPCADBVPZWXYPP q swap right p

21
21 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 to left or right end if equal. n Repeat until pointers cross. PPCADBVYZWXPPP pq

22
22 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 to left or right end if equal. n Repeat until pointers cross. PPCADBVYZWXPPP pq swap me

23
23 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 to left or right end if equal. n Repeat until pointers cross. PPCADBVYZWXPPP pq pointers cross

24
24 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. PPCADBYZWXPPP pq swap me V

25
25 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. BPCADPYZWXPPP pq swap me V

26
26 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. BDCAPPYZWXPPP pq V

27
27 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. BDCAPPYZWXPPP pq swap me V

28
28 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. BDCAPPPYZWXPPV pq swap me

29
29 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. BDCAPPPPZWXPYV pq swap me

30
30 3-Way Partitioning 3-way partitioning. n Swap elements on left with elements in middle. n Swap elements on right with elements in middle. BDCAPPPPPWXZYV pq 3-way partitioned!

Similar presentations

© 2016 SlidePlayer.com Inc.

All rights reserved.

Ads by Google