Dan Bron wrote: > (,&.>c) ([: +/ =/)&> <i.#b where a =: ;: 'he ha ho he hi he' b =: ~. a c=: 1 3 3; 2; 0; 0
A compact variation on this theme is +/"2>c=/L:0 i.#b 0 1 0 2 0 0 1 0 1 0 0 0 1 0 0 0 -- Raul
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