Hello q folks, I was looking at the function definition for .Q.p, after
seeing its usage in the billion taxi ride benchmark.
k){$[~#D;p2[x;`:.]':y;(,/p2[x]'/':P[i](;)'y)@<,/y@:i:&0<#:'y:D{x@&x in
y}\:y]} - what inputs would this function take, as x a...