Add optional dupe suppression, using a hash table for speedup. Since we're running from stdin we don't know what optimal size hash to use, current default is 1<<26 which is "optimal" for rockyou with dupes and will use about 650 MB during loading of that file (this memory is freed before candidate generation starts). For other sizes it might be suboptimal in terms of memory use or speed, but it will produce the same result anyway.
Add optional dupe suppression, using a hash table for speedup. Since we're running from stdin we don't know what optimal size hash to use, current default is 1<<26 which is "optimal" for rockyou with dupes and will use about 650 MB during loading of that file (this memory is freed before candidate generation starts). For other sizes it might be suboptimal in terms of memory use or speed, but it will produce the same result anyway.