| 1234567891011121314151617181920 |
- Tree edge: 0 --> 2
- Tree edge: 2 --> 1
- Back edge: 1 --> 1
- Finish edge: 1 --> 1
- Tree edge: 1 --> 3
- Back edge: 3 --> 1
- Finish edge: 3 --> 1
- Tree edge: 3 --> 4
- Back edge: 4 --> 0
- Finish edge: 4 --> 0
- Back edge: 4 --> 1
- Finish edge: 4 --> 1
- Forward or cross edge: 2 --> 3
- Finish edge: 2 --> 3
- Finish edge: 0 --> 2
- 1 10
- 3 8
- 2 9
- 4 7
- 5 6
|
