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Sorting

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Sorting (Sorting) ... – PowerPoint PPT presentation

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Title: Sorting


1
?????????????????
Sorting
2
????????
  • ???????????????? (Sorting) ???????????????????????
    ? ??????????????????????????????????? (?????????
    ???? ?????????)
  • ?????????????????????? Record ?????? Field
    ??????????????????? Field ????????????????????????
    ?????? ???? ???????????????????????????????
    ???????????????????????????????????? Field
    ???????????????????? ???????

3
????????????????????????????
  • ???????????????? (Internal Sorting)
  • ??????????????????????????????????????????????????
    ????????????????? ????????????????????????????????
    ???????????????????????????????????? ???? ??????
    Array ???? Linked-List ??????????
  • ????????????????? (External Sorting)
  • ??????????????????????????????????????????????
    ???? Disk ??????????????????????????
    ???????????????????????????? ?????????????????????
    ????????????????? ????????????????????????????????
    ??????????????? ??????????????????????????????????
    ?????? ??????????????????????????????

4
?????????????????????
  • ???????????????????????? (Exchange Sort)
  • ?????????????????? (Insertion Sort)
  • ??????????????????? (Selection Sort)

5
???????????????????????? (Bubble Sort)
  • ??????????????????????????????????? 2
    ????????????
  • ?????????????????????? ? ?????????????????????????
    ???????????? ???? ????????????????????????????????
    ? ?????
  • ?????????????????? ?????????????????????
  • ????????????????? ?????????????????
  • ?????? 2 ???????????????? ???
  • ????????????????????????????? ????????????????????
    ??
  • ???????????????????????????????????????
    ????????????????????
  • ??????????????????????? ? ????????????????????????
    ????????????????????????????????????????????

6
???????? Function ?????????????? Bubble
7
???????? Bubble Sort
12
42
94
18
06
67
55
44
?????? 8 ????? 7 ???
?????? ?????? 1 06 44 55 12 42 94 18 67 2 06 1
2 44 55 18 42 94 67 3 06 12 18 44 55 42 67 94 4 06
12 18 42 44 55 67 94 5 06 12 18 42 44 55 67 94 6
06 12 18 42 44 55 67 94 7 06 12 18 42 44 55 67 94
8
int main() int AELEMENTS44,55,12,42,94,6,
18,67 int x coutltlt"NON SORTED
LIST"ltltendl for(x0xltELEMENTSx)
coutltltAxltltendl exchange_sort(A,ELEMENTS)
coutltltendlltlt"SORTED LIST"ltltendl
for(x1xltELEMENTSx)
coutltltAxltltendl return 0
include ltiostream.hgt define ELEMENTS 8 void
exchange_sort(int x,int length) int temp
for(int i0iltlengthi) for (int
jlengthjgtij--) if(xj-1gtxj)
tempxj-1 xj-1xj
xjtemp
9
?????????????????? (Insertion Sort)
  • ????????????????????????????????????????????????
    ? ?????????????????
  • ??????????????????????????????????????????????????
    ????????????????????????????????? ?
    ?????????????????
  • ??????????????????????????????????????????????????
    ??? ????
  • ?????????????????????????
  • ???????????????????? 2 ???????????????????????????
    ????????????????
  • ??????????????? ????????????????? ? ??
    ??????????????????????????????????????????????????
    ????????? ????????????

10
???????? Function ??????????? Insertion
11
????????Insertion Sort
12
42
94
18
06
67
55
44
?????? 8 ????? 7 ???
?????? ?????? 2 44 55 12 42 94 18 06 67 3 1
2 44 55 42 94 18 06 67 4 12 42 44 55 94 18 06 67 5
12 42 44 55 94 18 06 67 6 12 18 42 44 55 94 06 67
7 06 12 18 42 44 55 94 67 8 06 12 18 42 44 55 67
94
12
int main() int AELEMENTS44,55,12,42,94,0
6,18,67 int x coutltlt"NON SORTED
LIST"ltltendl for(x0xltELEMENTSx)
coutltltAxltltendl insertion_sort(A,ELEMENTS
) coutltltendlltlt"SORTED LIST"ltltendl
for(x0xltELEMENTSx)
coutltltAxltltendl return 0
include ltiostream.hgt define ELEMENTS 8
void insertion_sort(int x,int length) int
key,i for(int j1jltlengthj)
keyxj ij-1 while(xigtkey
igt0) xi1xi
i-- xi1key
13
??????????????????? (Selection Sort)
  • ??????????????????????????????????????????????????
    ???????????????????????????????
  • ???????????????????????
  • ??????????????????????????????????????????????????
    ????????

14
???????? Function ??????????? Selection
15
????????Selection Sort
12
42
94
18
06
67
55
44
?????? 8 ????? 7 ???
?????? ?????? 1 06 55 12 42 94 18 44 67 2 06 1
2 55 42 94 18 44 67 3 06 12 18 42 94 55 44 67 4 06
12 18 42 94 55 44 67 5 06 12 18 42 44 55 94 67 6
06 12 18 42 44 55 94 67 7 06 12 18 42 44 55 67 94
16
int main() int AELEMENTS44,55,12,42,94,6
,18,67 int x coutltlt"NON SORTED
LIST"ltltendl for(x0xltELEMENTSx)
coutltltAxltltendl selection_sort(A,ELEMENTS
) coutltltendlltlt"SORTED LIST"ltltendl
for(x0xlt ELEMENTSx)
coutltltAxltltendl return 0
include ltiostream.hgt define ELEMENTS 8 void
selection_sort(int x,int length) int
k,temp for(int i0iltlengthi)
ki for (int ji1jlt lengthj)
if(xjlt xk) kj
tempxi xixk xktemp
17
LAB 1
????????????????????????????????
?????????????????????????? (Sorting) ???? 3 ???
???????????????????????????? Output ???? 3
??????????????
18
Insertion Sort ???????????????
12
42
94
18
06
67
55
44
?????? 8 ????? 7 ???
Insert2.cpp
?????? ?????? 2 44 55 12 42 94 18 06 67 3 4
4 55 12 42 94 06 18 67 4 44 55 12 42 06 18 67 94 5
44 55 12 06 18 42 67 94 6 44 55 06 12 18 42 67 94
7 44 06 12 18 42 55 67 94 8 06 12 18 42 44 55 67
94
19
Bubble Sort ??????????????????????
12
42
94
18
06
67
55
44
?????? 8 ????? 7 ???
Bubble2.cpp
?????? ?????? 1 44 12 42 55 18 06 67 94 2 12 4
2 44 18 06 55 67 94 3 12 42 18 06 44 55 67 94 4 12
18 06 42 44 55 67 94 5 12 06 18 42 44 55 67 94 6
06 12 18 42 44 55 67 94 7 06 12 18 42 44 55 67 94
20
Selection Sort ???????????????????????????????
12
42
94
18
06
67
55
44
?????? 8 ????? 7 ???
Select2.cpp
?????? ?????? 1 44 55 12 42 67 18 06 94 2 44 5
5 12 42 06 18 67 94 3 44 18 12 42 06 55 67 94 4 06
18 12 42 44 55 67 94 5 06 18 12 42 44 55 67 94 6
06 12 18 42 44 55 67 94 7 06 12 18 42 44 55 67 94
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