Add ishalfodd function
#103
| Job | Run time |
|---|---|
| 1m 28s | |
| 1m 33s | |
| 1m 12s | |
| 5m 21s | |
| 4m 10s | |
| 1m 39s | |
| 1m 29s | |
| 8m 34s | |
| 7m 53s | |
| 1m 55s | |
| 1m 30s | |
| 5m 19s | |
| 7m 47s | |
| 1m 48s | |
| 1m 34s | |
| 7m 12s | |
| 7m 45s | |
| 1m 46s | |
| 1m 22s | |
| 9m 58s | |
| 4m 22s | |
| 48s | |
| 46s | |
| 9m 34s | |
| 8m 21s | |
| 55s | |
| 49s | |
| 8m 33s | |
| 4m 16s | |
| 2m 58s | |
| 2m 24s | |
| 3m 46s | |
| 2m 50s | |
| 2m 55s | |
| 2m 32s | |
| 4m 25s | |
| 2m 56s | |
| 3m 33s | |
| 3m 1s | |
| 5m 6s | |
| 3m 33s | |
| 2m 58s | |
| 2m 21s | |
| 3m 50s | |
| 3m 32s | |
| 3m 22s | |
| 2m 43s | |
| 4m 50s | |
| 3m 22s | |
| 3h 6m 36s |