Count number of connected components more efficiently than length(connected_components(g))
#863
| Job | Run time |
|---|---|
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| 20m 9s | |
| 12m 56s | |
| 6m 43s | |
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| 17m 53s | |
| 12m 2s | |
| 13m 40s | |
| 13m 46s | |
| 1h 58m 55s |