Revision as of 23:47, 26 October 2009 (view source) Tikkanz (talk \| contribs) (→‎{{header\|J}}: add alternative formulation) ← Older edit		Revision as of 23:53, 26 October 2009 (view source) Tikkanz (talk \| contribs) m (→‎{{header\|J}}: simplify) Newer edit →
Line 165: isNotUpOne =: -.@(+/@]) step_up=: ((] , attemptClimb) ^: isNotUpOne ^:_) &'' NB. no variables or numbers</lang> Note that J's verbs (functions) must always take an argument i.e. there is no such thing as a niladic verb. Verbs that ignore their arguments (e.g. <code>step</code>) achieve the same effect.

Stair-climbing puzzle: Difference between revisions

Stair-climbing puzzle (view source)