目的地顺序 | 1 | 2 | 3 | 4 | 5 |
A | 0 | 1 | 0 | 0 | 0 |
B | 0 | 0 | 0 | 1 | 0 |
C | 1 | 0 | 0 | 0 | 0 |
D | 0 | 0 | 0 | 0 | 1 |
E | 0 | 0 | 1 | 0 | 0 |