| Constant-Work-Space Algorithm for a Shortest Path in a Simple Polygon Recent countries visiting this post |  |
 | 8 | United States |
 | 3 | |
 | 1 | Russian Federation |
| Constant-Work-Space Algorithm for a Shortest Path in a Simple Polygon Recent countries visiting this post | |
| 8 | United States |
| 3 | |
| 1 | Russian Federation |