The latest HackerRank weekly challenge attracted 71 entries from the US and 387 from India, but only four from the UK. I think this is the lowest turnout so far. Maybe the good weather had something to do with it.
But anyway, I’m still quite pleased with coming in 1st out of the UK contingent and 52nd (out of 720) overall. My solution to the GCD product question could have been speeded up, and I would probably have made the effort if my first solution hadn’t passed all the test cases in a matter of milliseconds.