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1 Breadth First Search A B F I E H D C G FIFO Queue - front

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Page 1: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

1

Breadth First Search

A B

F

I

E H

DC

G

FIFO Queue

-

front

Page 2: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

2

Breadth First Search

A B

F

I

E H

DC

G

A

FIFO Queue

-

frontenqueue source node

Page 3: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

3

Breadth First Search

A B

F

I

E H

DC

G

A

FIFO Queue

-

frontdequeue next vertex

Page 4: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

4

Breadth First Search

frontvisit neighbors of A

A B

F

I

E H

DC

G

-

FIFO Queue

Page 5: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

5

Breadth First Search

frontvisit neighbors of A

A B

F

I

E H

DC

G

-

FIFO Queue

Page 6: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

6

Breadth First Search

BfrontB discovered

A B

F

I

E H

DC

G

- A

FIFO Queue

Page 7: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

7

Breadth First Search

B frontvisit neighbors of A

A

F

I

E H

DC

G

-

B

A

FIFO Queue

Page 8: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

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Breadth First Search

B I frontI discovered

A

F

I

E H

DC

G

-

B

A

A

FIFO Queue

Page 9: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

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Breadth First Search

B I frontfinished with A

A

F

I

E H

DC

G

-

B

A

A

FIFO Queue

Page 10: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

10

Breadth First Search

B I front

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

FIFO Queue

Page 11: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

11

Breadth First Search

I front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of B

FIFO Queue

Page 12: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

12

Breadth First Search

I front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of B

FIFO Queue

Page 13: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

13

Breadth First Search

I F front

A

F

I

E H

DC

G

-

B

A

A

F discovered

B

FIFO Queue

Page 14: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

14

Breadth First Search

I F front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of B

B

FIFO Queue

Page 15: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

15

Breadth First Search

I F front

A

F

I

E H

DC

G

-

B

A

A

A already discovered

B

FIFO Queue

Page 16: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

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Breadth First Search

I F front

A

F

I

E H

DC

G

-

B

A

A

finished with B

B

FIFO Queue

Page 17: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

17

Breadth First Search

I F front

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

B

FIFO Queue

Page 18: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

18

Breadth First Search

F front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of I

B

FIFO Queue

Page 19: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

19

Breadth First Search

F front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of I

B

FIFO Queue

Page 20: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

20

Breadth First Search

F front

A

F

I

E H

DC

G

-

B

A

A

A already discovered

B

FIFO Queue

Page 21: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

21

Breadth First Search

F front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of I

B

FIFO Queue

Page 22: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

22

Breadth First Search

F E front

A

F

I

E H

DC

G

-

B

A

A

E discovered

BI

FIFO Queue

Page 23: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

23

Breadth First Search

F E front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of I

BI

FIFO Queue

Page 24: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

24

Breadth First Search

F E front

A

F

I

E H

DC

G

-

B

A

A

F already discovered

BI

FIFO Queue

Page 25: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

25

Breadth First Search

F E front

A

F

I

E H

DC

G

-

B

A

A

I finished

BI

FIFO Queue

Page 26: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

26

Breadth First Search

F E front

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

BI

FIFO Queue

Page 27: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

27

Breadth First Search

E front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of F

BI

FIFO Queue

Page 28: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

28

Breadth First Search

E G front

A

F

I

E H

DC

G

-

B

A

A

G discovered

BI F

FIFO Queue

Page 29: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

29

Breadth First Search

E G front

A

F

I

E H

DC

G

-

B

A

A

F finished

BI F

FIFO Queue

Page 30: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

30

Breadth First Search

E G front

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

BI F

FIFO Queue

Page 31: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

31

Breadth First Search

G front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of E

BI F

FIFO Queue

Page 32: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

32

Breadth First Search

G front

A

F

I

E H

DC

G

-

B

A

A

E finished

BI F

FIFO Queue

Page 33: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

33

Breadth First Search

G front

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

BI F

FIFO Queue

Page 34: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

34

Breadth First Search

front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of G

BI F

FIFO Queue

Page 35: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

35

Breadth First Search

Cfront

A

F

I

E H

DC

G

-

B

A

A

C discovered

BI F

G

FIFO Queue

Page 36: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

36

Breadth First Search

Cfront

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of G

BI F

G

FIFO Queue

Page 37: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

37

Breadth First Search

C Hfront

A

F

I

E H

DC

G

-

B

A

A

H discovered

BI F

G

G

FIFO Queue

Page 38: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

38

Breadth First Search

C Hfront

A

F

I

E H

DC

G

-

B

A

A

G finished

BI F

G

G

FIFO Queue

Page 39: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

39

Breadth First Search

C Hfront

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

BI F

G

G

FIFO Queue

Page 40: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

40

Breadth First Search

Hfront

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of C

BI F

G

G

FIFO Queue

Page 41: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

41

Breadth First Search

H Dfront

A

F

I

E H

DC

G

-

B

A

A

D discovered

BI F

G

G

C

FIFO Queue

Page 42: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

42

Breadth First Search

H Dfront

A

F

I

E H

DC

G

-

B

A

A

C finished

BI F

G

G

C

FIFO Queue

Page 43: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

43

Breadth First Search

H Dfront

A

F

I

E H

DC

G

-

B

A

A

get next vertex

BI F

G

G

C

FIFO Queue

Page 44: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

44

Breadth First Search

Dfront

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of H

BI F

G

G

C

FIFO Queue

Page 45: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

45

Breadth First Search

Dfront

A

F

I

E H

DC

G

-

B

A

A

finished H

BI F

G

G

C

FIFO Queue

Page 46: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

46

Breadth First Search

Dfront

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

BI F

G

G

C

FIFO Queue

Page 47: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

47

Breadth First Search

front

A

F

I

E H

DC

G

-

B

A

A

visit neighbors of D

BI F

G

G

C

FIFO Queue

Page 48: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

48

Breadth First Search

front

A

F

I

E H

DC

G

-

B

A

A

D finished

BI F

G

G

C

FIFO Queue

Page 49: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

49

Breadth First Search

front

A

F

I

E H

DC

G

-

B

A

A

dequeue next vertex

BI F

G

G

C

FIFO Queue

Page 50: 1 Breadth First Search AB F I EH DC G FIFO Queue - front

50

Breadth First Search

frontSTOP

A

F

I

E H

DC

G

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B

A

A

BI F

G

G

C

FIFO Queue


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