1 Euler Tour: Example 0: 1 2 5 6 1: 0 2 2: 0 3 4 1 3: 4 2 4: 6 5 3 2 5: 4 0 6: 4 0 0 6 4 21 5 3...
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1 Euler Tour: Example 0: 1 2 5 6 1: 0 2 2: 0 3 4 1 3: 4 2 4: 6 5 3 2 5: 4 0 6: 4 0 0 6 4 2 1 5 3 Adjacency list
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Transcript of 1 Euler Tour: Example 0: 1 2 5 6 1: 0 2 2: 0 3 4 1 3: 4 2 4: 6 5 3 2 5: 4 0 6: 4 0 0 6 4 21 5 3...
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Adjacency list
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
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Euler Tour: Example
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Euler Tour: Example
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Euler Tour: Example
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Euler Tour: Example
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Euler Tour: Example
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Euler Tour: Example
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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XXX
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stdout
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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stdout
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Adjacency list
XXX
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X X
X XX
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stdout
stack
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Euler Tour: Example
0: 1 2 5 61: 0 22: 0 3 4 13: 4 24: 6 5 3 25: 4 06: 4 0
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Adjacency list
XXX
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X X
X XX
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0 6 4 2 3 4 5 0 2 1 0
stdout
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int euler(Graph G, int v) { link t; int w; for(t = G->adj[v]; t != NULL, v = w) { STACKpush(v); w = t->w; GRAPHremove(G, EDGE(v, w)); } return v;}
void GRAPHshowEuler(Graph G, int v) { STACKinit(G->E); STACKpush(v); while ((euler(G, v) == v) && !STACKisempty()) v = STACKpop(); printf("%d ", v); } if (!STACKisempty()) printf("Not Eulerian.\n");}
Euler Tour
Euler Tour: Implementation
cyclic path back to initial vertex
delete both copies of edge
