| In a directed graph with 5 nodes numbered from 0 to 4: | |
| node 0 should be visited before node 4 | |
| node 0 should be visited before node 3 | |
| node 2 should be visited before node 1 | |
| node 3 should be visited before node 1. |
| In a directed graph with 5 nodes numbered from 0 to 4: | |
| node 0 should be visited before node 4 | |
| node 0 should be visited before node 3 | |
| node 2 should be visited before node 1 | |
| node 3 should be visited before node 1. |