14 ms·

You can make it simpler: l:0;.Q.fs[{if[x~l;:];-1 l::x}each]`:input or if you have memory: -1 distinct read0`:input ...or if you want to use k:

by geocar 9y ago

You can make it simpler: l:0;.Q.fs[{if[x~l;:];-1 l::x}each]`:input or if you have memory: -1 distinct read0`:input ...or if you want to use k: -1@?0:`:input

aplorbust 9y ago
Stupid question: With -1, how would I suppress the return value? Use a function? k)a:{-1@?0:`:input;};a[]
- geocar 9y ago
  It's not a stupid question. ; What this does is return generic-null :: which .Q.s doesn't print.