ford fulkerson algo
TRANSCRIPT
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Algorithm Design by Éva Tardos and Jon Kleinberg • Copyright © 2005 Addison Wesley • Slides by Kevin Wayne
7. Ford-Fulkerson Demo
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2
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 20
0
0
0 0 0
00
G:
Flow value = 0
0
flowcapacity
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3
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 20
0
0
0 0 0
00
G:
s
2
3
4
5 t 10 9
4
10 6 2 Gf:
10 8
10
8 8
8
X X
X
0
Flow value = 0
capacity
residual capacity
flow
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4
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 28
0
0
0 0 8
80 0
G:
s
2
3
4
5 t 10
4
10 6 Gf:
8
8 8
9
22
2
10
210
XX
X2X
Flow value = 8
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5
0
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 210
0
0
0 2 10
82
G:
s
2
3
4
5 t
4
2 Gf:
10
810
2 10 7
10 6
X
66
6
X
X
8X
Flow value = 10
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6
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 210
0
6
6 8 10
82
G:
s
2
3
4
5 t1
6 Gf:
10
8 10
8
6
6
6
4
4
4
2
X
8
2
8
X
X
0X
Flow value = 16
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7
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 210
2
8
8 8 10
80
G:
s
2
3
4
5 t
6 2 Gf:
10
10
8
6
8
8
2
2 1
2
8 2
X
9
7 9
X
X
9X
X 3
Flow value = 18
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8
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 210
3
9
9 9 10
70
G:
s
2
3
4
5 t 1 9
1
1 6 2 Gf:
10
7 10
6
9
9
3
1
Flow value = 19
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9
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 210
3
9
9 9 10
70
G:
s
2
3
4
5 t 1 9
1
1 6 2 Gf:
10
7 10
6
9
9
3
1
Flow value = 19Cut capacity = 19
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9
Ford-Fulkerson Algorithm
s
2
3
4
5 t 10
10
9
8
4
10
10 6 210
3
9
9 9 10
70
G:
s
2
3
4
5 t 1 9
1
1 6 2 Gf:
10
7 10
6
9
9
3
1
Flow value = 19Cut capacity = 19