| Computing Minimum Directed Feedback Vertex Set in O(1.9977n) Recent countries visiting this post |  |
 | 9 | United States |
 | 7 | |
 | 1 | China |
 | 1 | Russian Federation |
| Computing Minimum Directed Feedback Vertex Set in O(1.9977n) Recent countries visiting this post | |
| 9 | United States |
| 7 | |
| 1 | China |
| 1 | Russian Federation |