avoid some conversions to short_digraph in distances_all_pairs.pyx
#17648
| Job | Run time |
|---|---|
| 32m 4s | |
| 32m 4s |
short_digraph in distances_all_pairs.pyx
#17648
| Job | Run time |
|---|---|
| 32m 4s | |
| 32m 4s |