Pick one and press Start, then click Next › to step through it.
Watch for
The estimate landing close to 300 from just 64 small registers — no list of the actual values is ever stored.
More about this scenario
You'll learn
How HyperLogLog estimates how many unique items it has seen using a fixed, tiny amount of memory.
How it runs
Each value is hashed; the leading zeros of the hash pick how 'rare' it is, and each register keeps the rarest it has seen. Combining all registers with a harmonic mean turns those rarity records into a count estimate.