#80: 0xea1a5c66dcc11b5ad180
#85: 0x11720c4f018d51b8cebba8
#90: 0x2ce00bb2136a445c71e85bf
#95: It wasn't me
#100: Also not me
Nice. What software/script and what hardware did you used? What are the costs? Thanks!
Pollard kangaroo on gpu. No costs.
Just out of curiosity, implemented in C or Python? I see there is a discussion how many kangaroos is optimal, any conclusions from your side on this question?
C++. Single threaded 4 to 5 (but probably hardly matters). You increase your chances to hit a sweet-spot but spread speed over the kangaroos. So it compensates.
To parallelize: as many as needed. Ratio 1:1.